BEYOND INNOVATION TECHNOLOGY CO., LTD. Patent applications |
Patent application number | Title | Published |
20150091443 | LOAD DRIVING APPARATUS WITH CURRENT BALANCE FUNCTION - A load driving apparatus including a power conversion circuit, a current balance circuit, a protection unit and a control chip is provided. The power conversion circuit is configured to receive a DC input voltage, and provide a DC output voltage to a plurality of light emitting units in response to a control signal. The current balance circuit has a plurality of switch elements corresponding to the light emitting units, and is configured to balance currents flowing through the light emitting units. The protection unit detects statuses of the switch elements and/or the DC output voltage. The control chip generates the control signal to control operations of the power conversion circuit; and stops generating the control signal and enters into a shutdown status when any one of the switch elements is open-circuit and/or the DC output voltage is over-voltage, thereby protecting the load driving apparatus and/or the switch elements from damaging. | 04-02-2015 |
20150048812 | BOOST APPARATUS WITH OVER-CURRENT AND OVER-VOLTAGE PROTECTION FUNCTIONS - A boost apparatus adapted for providing a direct-current (DC) output voltage to a load is provided, and the boost apparatus includes a boost power conversion circuit and a control chip. The boost power conversion circuit has a diode coupled to the load. Besides, the boost power conversion circuit is configured to receive a DC input voltage and provide the DC output voltage to the load in response to a pulse-width-modulation (PWM) signal. The control chip is coupled to the boost power conversion circuit and configured to generate the PWM signal to control the operation of the boost power conversion circuit. The control chip is also configured to stop outputting the PWM signal and enter into a shutdown state when the diode is an open circuit or a short circuit, so as to protect the boost apparatus and/or the load from being damaged. | 02-19-2015 |
20150022103 | LIGHT EMITTING DIODE DRIVING APPARATUS AND LIGHT EMITTING DIODE DRIVING METHOD - A light emitting diode (LED) driving apparatus and an LED driving method suitable for driving an LED load are provided. The LED driving apparatus includes a driving circuit, a feedback circuit, and a control chip. The driving circuit provides a driving voltage to one terminal of the LED load according to a pulse-width modulation (PWM) driving signal. The feedback circuit generates a feedback voltage according to a voltage on the other terminal of the LED load. The control chip is configured to generate the PWM driving signal and adjust the duty cycle of the PWM driving signal in response to the feedback voltage. If the control chip determines the PWM driving signal with a threshold duty cycle continues being output over a preset period of time, the control chip determines that the current leakage phenomenon occurs on the LED load and stops generating the PWM driving signal. | 01-22-2015 |
20140353747 | TRENCH GATE MOSFET AND METHOD OF FORMING THE SAME - A trench gate MOSFET is provided. An N-type epitaxial layer is disposed on an N-type substrate. An N-type source region is disposed in the N-type epitaxial layer. The N-type epitaxial layer has at least one trench therein. An insulating layer serving as a gate insulating layer is disposed in the trench. A conductive layer serving as a gate fills up the trench. Two isolation structures are disposed in the N-type source region beside the trench and contact the trench. Two conductive plugs are disposed in the N-type epitaxial layer beside the trench and penetrate through the N-type source region. A dielectric layer is disposed on the N-type epitaxial layer. A metal layer is disposed on the dielectric layer and electrically connected to the N-type source region. | 12-04-2014 |
20140210350 | LOAD DRIVING APPARATUS RELATING TO LIGHT-EMITTING-DIODES - A load driving apparatus relating to light-emitting-diodes (LEDs) is provided. In the invention, a compensation voltage on a compensation pin (CMP) of a control chip would not be changed in response to (or with) the variation (i.e. enabling and disabling) of a pulse-width-modulation (PWM) signal for dimming. In other words, the compensation voltage on the compensation pin (CMP) of the control chip would be maintained in unchanging regardless of whether the PWM signal for dimming is enabled or disabled. Therefore, an LED string at the current switching transient does not have the generation of over-shoot current. | 07-31-2014 |
20140191671 | LIGHT EMITTING DIODE LOAD DRIVING APPARATUS - An LED load driving apparatus including a power conversion circuit and a control chip is provided. The power conversion circuit receives an input voltage and drives an LED load in response to a PWM signal. The control chip includes a control core circuit and a memory unit. The control core circuit is operated under a system voltage to provide the PWM signal for controlling operation of the power conversion circuit. The control core circuit is inactivated during a power-off period and restarted during a power-on period. The memory unit is operated under the input voltage and is configured to: store a dimming operation data before the control core circuit is inactivated during the power-off period; and provide the stored dimming operation data during the power-on period to the control core circuit, so as to make the control core circuit perform corresponding dimming operation relating to the LED load. | 07-10-2014 |
20140175998 | LAMP DRIVING APPARATUS AND ILLUMINATION EQUIPMENT USING THE SAME - A lamp driving apparatus and an illumination equipment using the same are provided. The provided lamp driving apparatus is responsible for driving a lamp. When any one of two terminals of the lamp is opened or the lamp is over-voltage, the provided driving apparatus stops driving the lamp, and thus achieving the purpose of open lamp and over-voltage protection/detection. | 06-26-2014 |
20140167637 | LOAD DRIVING APPARATUS AND DRIVING METHOD THEREOF - A load driving apparatus and a driving method thereof are provided. The load driving apparatus includes a power conversion circuit and a control chip. The power conversion circuit receives a DC input voltage, and drives an LED load in response to a gate PWM signal. The control chip is configured to: provide the gate PWM signal having a first preset duty cycle during a light operation period of a dimming operation, so that the LED load is fully turned on; and provide the gate PWM signal having a second preset duty cycle during a dark operation period of the dimming operation, so that the LED load is slightly turned on. The second preset duty cycle is far less than the first preset duty cycle. A current of the LED load during the light operation period is far more than a current of the LED load during the dark operation period. | 06-19-2014 |
20140159144 | TRENCH GATE MOSFET AND METHOD OF FORMING THE SAME - A trench gate MOSFET is provided. An N-type epitaxial layer on an N-type substrate has a wider first trench and a narrower second trench below the first trench. A first insulating layer is in the second trench. First and second conductive layers are respectively in lower and upper portions of the first trench. A thicker second insulating layer is between the first conductive layer and N-type epitaxial layer and between the first insulating layer and first conductive layer, and a thinner third insulating layer is between the second conductive layer and N-type epitaxial layer. A P-type first doped region is in the N-type epitaxial layer below the first trench and surrounds the top of the second trench. A P-type second doped region is in the N-type epitaxial layer below the second trench. A source region is in the N-type epitaxial layer and surrounds the top of the first trench. | 06-12-2014 |
20140145627 | LOAD DRIVING APPARATUS RELATING TO LIGHT-EMITTING-DIODES - A load driving apparatus relating to light-emitting-diodes (LEDs) is provided. In the invention, a compensation voltage on a compensation pin (CMP) of a control chip does not change in response to (or with) the variation (i.e. enabling and disabling) of a pulse-width-modulation (PWM) signal for dimming. In other words, regardless of whether the PWM signal for dimming is enabled or disabled, the compensation voltage on the compensation pin of the control chip maintains unchanged. Therefore, an LED string at the current switching transient does not have the generation of over-shoot current. | 05-29-2014 |
20140139954 | BOOST TYPE POWER CONVERTING APPARATUS WITH PROTECTION CIRCUIT - A boost type power converting apparatus is disclosed. The boost type power converting apparatus includes a boost type power converting circuit and a protection circuit. The boost type power converting circuit receives an input voltage and generates an output signal at an output terminal thereof according to the input voltage, and outputs the output signal to a load. The protection circuit is coupled between the boost type power converting circuit and the load in series to form an electrical loop, and turns on or off the electrical loop according to the output signal. | 05-22-2014 |
20130328485 | APPARATUS AND METHOD FOR DRIVING FLUORESCENT LAMP - An apparatus and a method for driving a fluorescent lamp are provided. The apparatus submitted by the present invention includes an LC resonator and an automatic frequency tracing circuit. The LC resonator is used for receiving and converting a square signal to generate a sinusoidal driving signal for driving the fluorescent lamp. | 12-12-2013 |
20130321186 | SIGNAL RECEIVING DEVICE AND ELECTRONIC APPARATUS USING THE SAME - A signal receiving device and an electronic apparatus using the same are provided. The signal receiving device includes a signal conversion unit, a signal analysis unit, and an impedance unit. The signal conversion unit receives an analog input signal and converts the analog input signal into a digital input signal. The signal analysis unit receives the digital input signal and analyzes a signal characteristic thereof to generate an impedance adjustment signal. The impedance unit coupled to the signal analysis unit and a signal input terminal of the signal receiving device receives the impedance adjustment signal to dynamically adjust an input impedance of the signal input terminal. Thereby, the signal receiving device analyzes an input signal to dynamically adjust the input impedance of the signal receiving device, so as to maintain an amplitude gain of the input signal to be within a limited input range of the signal receiving device. | 12-05-2013 |
20130320856 | LOAD DRIVING APPARATUS RELATING TO LED LAMP AND METHOD THEREOF AND ILLUMINATION APPARATUS USING THE SAME - The disclosure provides a load driving apparatus relating to an LED lamp and a method thereof and an illumination apparatus using the same. The disclosure can use a low-pass filter to filter out the high-frequency PWM signal output from the control chip and to provide a DC low voltage level to the PWM dimming pin of the control chip when the LED lamp gets short circuit. In this way, the control chip is able to entirely stop outputting the PWM signal in response to the DC low voltage level provided by the low-pass filter so as to avoid all the components in the load driving apparatus from damaging caused by the short circuit of the LED lamp. | 12-05-2013 |
20130282926 | DATA TRANSFERRING APPARATUS AND METHOD FOR INTER-INTEGRATED CIRCUIT INTERFACE - A data transferring apparatus and method for an inter-integrated circuit interface are disclosed. The steps of the data transferring method include: dividing a sub-address into a plurality of part sub-address byte sets; setting a plurality of sub-address addressing identification codes corresponding to the part sub-address byte sets; and transferring each of the sub-address addressing identification codes and each of the corresponding part sub-address byte sets in sequence within each of a plurality of time periods for a sub-address addressing operation of the sub-address. | 10-24-2013 |
20130063474 | MULTI-PRIMARY COLOR LCD AND COLOR SIGNAL CONVERSION DEVICE AND METHOD THEREOF - A color signal conversion method suitable for a multi-primary color LCD is provided, which includes converting an RGB (red, green, blue) color input signal into a YUV (brightness-chroma) color signal; performing a compensation on a chroma (UV) signal of the YUV color signal according to a minimum color signal of the RGB color input signal and a brightness (Y) signal of the YUV color signal, so as to output a compensated YUV color signal, and providing a W (white) color output signal according to the minimum color signal of the RGB color input signal; and converting the compensated YUV color signal into an RGB color output signal. | 03-14-2013 |
20130016133 | BACKLIGHT MODULE AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAMEAANM Chen; Chia-HsinAACI Taipei CityAACO TWAAGP Chen; Chia-Hsin Taipei City TWAANM Wei; Tsung-PingAACI Taipei CityAACO TWAAGP Wei; Tsung-Ping Taipei City TWAANM Lin; Chiu-YuanAACI Taipei CityAACO TWAAGP Lin; Chiu-Yuan Taipei City TW - A backlight module and a liquid crystal display (LCD) device using the same are provided. The backlight module includes a light-guide plate and a light source module. The light-guide plate has a first side surface and a second side surface, wherein the second side surface is tangent with the first side surface. The light source module is disposed beside the first side surface and the second side surface of the light-guide plate, and a plurality of first light emitting diode (LED) units and a plurality of second LED units are respectively disposed at portions of the light source module that face the first side surface and the second side surface of the light-guide plate. Thereby, the backlight module has the advantages of high image contrast and low power consumption offered by a direct type backlight module and maintains the thickness of a side-edge backlight module. | 01-17-2013 |
20130015769 | APPARATUS FOR DRIVING FLUORESCENT LAMPAANM Jung; Kuang-YuAACI Taipei CityAACO TWAAGP Jung; Kuang-Yu Taipei City TWAANM Huang; Shih-ChungAACI Taipei CityAACO TWAAGP Huang; Shih-Chung Taipei City TW - An apparatus for driving a fluorescent lamp is provided. The provided apparatus includes a power switching circuit, an LC resonator and an automatic frequency tracing circuit. The power switching circuit is coupled between an input voltage and a ground potential, and configured for switching and outputting the input voltage and the ground potential in response to two output signals with a phase difference of 180 degrees so as to generate a square signal. The LC resonator is configured for receiving and converting the square signal, so as to generate a sinusoidal driving signal for driving the fluorescent lamp. The automatic frequency tracing circuit is configured for generating and adjusting the two output signals according to a current feedback signal relating to the sinusoidal driving signal, so as to make the frequency of the sinusoidal driving signal automatically follow the resonant frequency of the LC resonator. | 01-17-2013 |
20130009548 | LIGHTING APPARATUS FOR FLUORESCENT TUBE AND DRIVING METHOD THEREFOR - A lighting apparatus for a fluorescent tube and a driving method thereof are provided. The lighting apparatus includes a fluorescent tube, an open-loop protection unit and a driving device. The driving device includes an inverter and a power unit. The open-loop protection unit detects and determines an open-loop situation of two nodes of the fluorescent tube to produce an open-loop protection signal. The inverter receives a power voltage to light the fluorescent tube with a dual high-voltage method according to a trigger signal. The power unit coupled to the open-loop protection unit and the inverter provides the power voltage and determines whether to turn off the inverter according to the open-loop protection signal. When the open-loop situation of the fluorescent tube is occurred or driving voltage of the fluorescent tube is greater than a rated operating voltage, the inverter is turned off immediately to avoid components from overheating or burning. | 01-10-2013 |
20120319606 | FLUORESCENT TUBE DRIVING DEVICE - A fluorescent tube driving device including a first voltage converter, a second voltage converter, an oscillating unit, an inverter, an adjusting unit, a switching unit and a voltage stabilizing unit is provided. The first and the second voltage converters convert an alternating-current (AC) voltage to a first direct-current (DC) voltage and a second DC voltage. The oscillating unit is charged by the first DC voltage to generate a charging voltage and a trigger signal. The adjusting unit is charged by the charging voltage to generate a power supply signal. The switching unit transmits the second DC voltage according to the power supply signal. The voltage stabilizing unit stabilizes the voltage from the switching unit. Both of the oscillating unit and the adjusting unit are charged at a delay speed to synchronously transmit the operation voltage and the trigger signal to a controller in the inverter. | 12-20-2012 |
20120292695 | MONOLITHIC METAL OXIDE SEMICONDUCTOR FIELD EFFECT TRANSISTOR-SCHOTTKY DIODE DEVICE - A monolithic metal oxide semiconductor field effect transistor (MOSFET)-Schottky diode device including a chip, a MOSFET, a Schottky diode and a termination structure is provided. The chip is divided into a transistor region, a diode region and a termination region. The MOSFET is disposed on the transistor region. The Schottky diode is disposed on the diode region. The termination structure is disposed on the termination region. The transistor region and the diode region are divided by the termination region. The MOSFET and Schottky diode share the termination structure. | 11-22-2012 |
20120274213 | DRIVING APPARATUS FOR FLUORESCENT TUBES AND METHOD THEREOF - A driving apparatus for fluorescent tubes and a method thereof are provided. The provided driving apparatus changes a sinusoidal driving signal used for driving a fluorescent tube by detecting a current flowing through the fluorescent tube. Accordingly, the current flowing through the fluorescent tube can be conformed to specifications/regulations. Under the condition of being capable of detecting current(s) flowing through fluorescent tube(s), the provided driving apparatus can be suitable for driving fluorescent tubes with different specifications, categories and brands, and would not affect the lifetime of the fluorescent tubes and would not cause the problem of insufficient luminance. | 11-01-2012 |
20120182652 | ESD PROTECTION STRUCTURE - An electrostatic discharge (ESD) protection structure is provided, which includes a bonding pad, a body, an insulation layer, a first doped region and a via. The body is a first conductive type, while the first doped region is a second conductive type. The bonding pad is disposed on the body. The insulation layer is disposed between the body and the bonding pad. The first doped region is disposed in the body, and in view direction along the vertical projection of the body, all of the bonding pad is disposed in the first doped region. The via is disposed between the first doped region and the bonding pad. The bonding pad is electrically connected to the first doped region through the via. | 07-19-2012 |
20120169233 | DRIVING APPARATUS FOR FLUORESCENT TUBE AND METHOD THEREOF AND ILLUMINATION APPARATUS USING THE SAME - A driving apparatus for a fluorescent tube and a method thereof and an illumination apparatus using the same are provided. The driving apparatus stops providing power, when a fluorescent tube has broken, to both ends of the broken fluorescent tube regardless of whether a power switch related to the fluorescent tube is in ON or OFF state, and thus making sure that a person is under a safety condition without getting an electric shock during replacing the broken fluorescent tube; moreover, the driving apparatus automatically detects the newly installed fluorescent tube and automatically light up the newly installed fluorescent tube after the broken fluorescent tube is replaced and it is unnecessary to switch the power switch related to the fluorescent tube anymore, and thus avoiding a potentially hazard for the person who climbs up and down a ladder repeatedly. | 07-05-2012 |
20120081020 | APPARATUS AND METHOD FOR DRIVING FLUORESCENT LAMP - An apparatus and a method for driving a fluorescent lamp are provided. The apparatus submitted by the present invention includes a power switching circuit, an LC resonator and an automatic frequency tracing circuit. The power switching circuit is coupled between an input voltage and a ground potential, and is used for switching and outputting the input voltage and the ground potential in response to a ramp signal and a comparison voltage so as to generate a square signal. The LC resonator is used for receiving and converting the square signal to generate a sinusoidal driving signal for driving the fluorescent lamp. The automatic frequency tracing circuit is used for generating and adjusting the ramp signal according to a feedback signal related to the sinusoidal driving signal, so as to make a frequency of the sinusoidal driving signal automatically following a resonant frequency of the LC resonator. | 04-05-2012 |
20120002104 | PORTABLE DISPLAY APPARATUS OF VIDEO SIGNAL - A portable display apparatus of a video signal including a video signal source, a signal masking module, and a display panel is provided. The video signal source generates a data enable signal and a clock signal. The signal masking module is electrically connected to the video signal source, receives the data enable signal and the clock signal, and masks a part of the clock signal according to the data enable signal and a masking signal to provide a processing signal. The display panel is electrically connected to the signal masking module, receives the processing signal, and displays a part of the video signal to be an image according to the processing signal. | 01-05-2012 |
20110285344 | CHARGE DEVICE - A charge device includes a charge unit and a voltage detecting circuit. In an operation mode, the charge unit adjusts an output current according to an input voltage to charge a rechargeable device. The voltage detecting circuit generates a feedback voltage according to the value of the output current. In addition, the charge unit further determines an output voltage across the rechargeable device according to the feedback voltage and reduces the output current when the output voltage is less than a first predetermined voltage. | 11-24-2011 |
20110204800 | BACKLIGHT APPARATUS - A backlight apparatus includes light emitting diode (LED) modules. Each LED module includes a first connection pin set, a second connection pin set, a driving circuit, a first LED string, and a second LED string. Each of the connection pin sets has a first and second power connection pins and a first and second ground connection pins. The first and second power connection pins are coupled to each other, and the first and second ground connection pins are coupled to each other. The first ground connection pin of the first connection pin set is coupled to the first power connection pin of the second connection pin set. The driving circuit is used to provide a driving signal. Each of the LED strings is serially connected between the second power connection pin and the second ground connection pin of each of the connection pin sets and receives the driving signal. | 08-25-2011 |
20110187337 | BOOST TYPE POWER CONVERTING APPARATUS - A boost type power converting apparatus is disclosed. The boost type power converting apparatus includes a boost type power converting circuit and a protection circuit. The boost type power converting circuit receives an input voltage and generates an output signal at an output terminal thereof according to the input voltage, and outputs the output signal to a load. The protection circuit is coupled between the boost type power converting circuit and the load in serial to form an electrical loop, and turns on or off the electrical loop according to the output signal. | 08-04-2011 |
20110175550 | APPARATUS FOR DRIVING LOAD - An apparatus for driving loads is disclosed. The apparatus mentioned above for driving a plurality of loads includes a protection module and a current generating module. The protection module has a plurality of detection terminals and generates a plurality of detection results according to a plurality of driving voltages on the detection terminals. The current generating module provides a plurality driving currents according to the detection results for flowing through each of the loads, separately. | 07-21-2011 |
20110115443 | CHARGE DEVICE, ELECTRONIC DEVICE AND CHARGE METHOD THEREOF - A charge device is provided. The charge device includes a charge interface, a voltage detector and a control circuit. The charge interface receives a first power and provides a charge power to charge a rechargeable device accordingly. The voltage detector detects a charge voltage of the rechargeable device. The control circuit is respectively coupled to the charge interface and the voltage detector. When the charge voltage is smaller than a predetermined voltage, the control circuit makes the charge voltage and a charge current of the charge power to present a proportional relation. An electronic device and a charge method are also provided. | 05-19-2011 |
20110084991 | BACK-LIGHT CONTROL CIRCUIT OF MULTI-LAMPS LIQUID CRYSTAL DISPLAY - A multi-lamps LCD panel back-light control circuit is provided, and which includes a control unit, a full bridge switch, a resonance network circuit, a voltage transformer, and a feedback network. The control unit operates in coordinating with the full bridge switch, the resonance network circuit, the voltage transformer and the feedback network so as to use a constant operating frequency and a PWM feedback to control a current of CCFLs. The back-light control circuit is characterized in that different integrated-circuits (ICs) are respectively formed from the control unit including a PWM controller, a triangular wave/clock generator, a ½ frequency divider, and a logic circuit. The different ICs have either a plurality of respective frequency synchronous signal control terminals or a plurality of phase synchronous signal control terminals that are connected to one another so that the different ICs operate respectively either with a same operating frequency or a same phase. | 04-14-2011 |
20100225622 | DRIVING APPARATUS - A driving apparatus for driving a plurality of loads is provided. The driving apparatus includes a control unit, a driving unit, a current adjusting unit, and a detecting unit. The control unit outputs a control signal. The driving unit generates a driving signal according to the control unit to drive loads. The current adjusting unit is coupled to the loads to adjust the current passing through the same. The detecting unit is coupled to the current adjusting unit to detect a state of the current adjusting unit to generate a detecting signal. Here, the control unit adjusts the control signal according to the detecting signal. | 09-09-2010 |
20090309508 | DRIVING CIRCUIT OF MULTI-LAMPS - A driving circuit of multi-lamps including a power supply module, a transformer module, a first detection module, and a control module is provided. Whether the power supply module is turned off is controlled by a control signal. The transformer module respectively provides a driving signal and an inverted driving signal to a first terminal and a second terminal of each lamp according to the AC signal. The first detection module detects a first indication signal combined by signals of the first terminal of one lamp and the second terminal of another lamp. The control module generates the control signal according to the first indication signal. Therefore, whether the lamps have a problem of a short circuit or an open circuit, or are in abnormal states can be known from the variations of the first indication signal, and a protection function for the driving circuit can be activated. | 12-17-2009 |
20090121801 | PULSE WIDTH MODULATION DRIVING DEVICE - A pulse width modulation (PWM) driving device for generating a driving signal to a load is provided. A driving unit provides the driving signal according to a PWM signal and a control signal. A pulse generating unit generates the PWM signal according to a feedback signal from the load. A control unit generates the control signal according to an enable signal and the feedback signal. The control unit generates the control signal to control the driving unit to stop outputting the driving signal when the enable signal is at a first logic level and the feedback signal is smaller than a first predetermined voltage during a first time interval. The control unit generates a reset signal to reset the driving unit and the pulse generating unit when the enable signal is at a second logic level during a second time interval. | 05-14-2009 |
20090067741 | ADAPTIVE IMAGE PROCESSING DEVICE AND METHOD THEREOF - An adaptive image processing device is provided. The adaptive image processing device includes an image processing unit, a control unit, and a selection unit. The image processing unit receives an image data, for simultaneously execute a plurality of image processing processes to the image data, so as to obtain a plurality of output values. The control unit is coupled to the image processing unit, for executing at least one image analysis to the image data, and obtaining at least one selection signal. The selection unit receives the output values and selects one from the output values to output according to the selection signal. As such, the adaptive image processing device is adapted for discriminatively processing different pixels according to a result of analyzing image data of the image. | 03-12-2009 |
20090047183 | AIR CLEANERS WITH ADAPTIVE OZONE GAS GENERATION - An air cleaner is provided, comprising a control unit, an inverter, a negative ion generator, and an ozone gas generator. The control unit generates a control signal. The inverter coupled to the control unit generates a voltage according to the control signal. The negative ion generator coupled to the inverter receives the voltage to generate a negative ion. The ozone gas generator coupled to the inverter receives the voltage to generate an ozone gas. The negative ion generator and the ozone generator are both activated when the voltage is larger than a first voltage level, and the negative ion generator is activated and the ozone gas generator is deactivated when the voltage is less than the first voltage level and larger than a second voltage level. | 02-19-2009 |
20090009152 | BIAS SUPPLY, START-UP CIRCUIT, AND START-UP METHOD FOR BIAS CIRCUIT - A bias supply, a start-up circuit, and a start-up method for a bias circuit are provided. The bias supply includes the bias circuit, a first switch, a second switch, and a charge storage unit. The first switch is coupled between a first voltage and a node. The first switch determines whether or not to be turned on according to a feedback voltage from the bias circuit. The charge storage unit is coupled between the node and a second voltage. The second switch determines whether or not to output a start-up voltage to the bias circuit according to the voltage of the node. In other words, the present invention utilizes charge/discharge properties of the charge storage unit and the feedback voltage from the bias circuit for controlling whether the second switch outputs a start-up voltage to the bias circuit or not. Therefore, the power consumption of the start-up circuit is decreased. | 01-08-2009 |
20090002061 | BIAS SUPPLY, START-UP CIRCUIT, AND START-UP METHOD FOR BIAS CIRCUIT - A bias supply, a start-up circuit, and a start-up method for a bias circuit are provided. The bias supply includes the bias circuit, an impedance unit, a charge storage unit, and a switch. The impedance unit is coupled between a first voltage and a node. The charge storage unit is coupled between the node and a second voltage. The switch decides whether or not to output a start-up voltage to the bias circuit according to the voltage of the node. In other words, charge/discharge properties of the charge storage unit are utilized for controlling whether the switch outputs a start-up voltage to the bias circuit or not. Therefore, the power consumption of the start-up circuit is decreased. | 01-01-2009 |
20080315690 | INITIAL CIRCUITS, FULL BRIDGE SWITCHING CIRCUITS AND HALF BRIDGE SWITCHING CIRCUITS - An initial circuit is provided. The initial circuit receives a plurality of input signals and controls an initial status of a switching circuit with a plurality of switches. The initial circuit includes a judgment circuit for generating an enable signal according to one of the input signals, and a control circuit for generating a plurality of control signals according to the enable signal and the input signals. The switches are turned off by the control circuit according to the control signals when the switching circuit is in an initial status, and the switches are controlled by the control circuit according to the control signals when the switching circuit is in an operating status. | 12-25-2008 |
20080297335 | DRIVING EFFICIENCY MANAGEMENT APPARATUS AND METHOD THEREOF - A driving efficiency management apparatus and a method thereof are provided. The driving efficiency management apparatus includes a detection unit, a storage unit, a processing unit, and a display. The detection unit detects the driving condition of a vehicle and generates a driving information. The storage unit receives and stores the driving information. The processing unit compares the driving information and generates an economical performance information and an optimal driving operation information according to the comparison result. The display displays the economical performance information or the optimal driving operation information. | 12-04-2008 |
20080278317 | REAL-TIME MONITOR SYSTEM - A real-time monitor system including at least one public facility, a second wireless transceiver, and a control center is provided. The public facility includes a power generator, a load, a signal generator, and a first wireless transceiver. An initial power provided by the power generator drives the load. The signal generator determines whether or not to output a condition signal and a positioning signal according to whether the load is driven. Then, the condition signal and the positioning signal are emitted to the second wireless transceiver by the first wireless transceiver. Therefore, the control center determines the service condition of the public facility according to the information of the condition signal or whether the condition signal is received, and determines the position of the public facility according to the positioning signal. | 11-13-2008 |
20080241017 | ELECTRONIC DEVICE - An electronic device including a control module and a filter. The electronic device generates a pernicious substance when the electronic device is operated. The control module controls the electronic device. The filter filters the pernicious substance. | 10-02-2008 |
20080211318 | SWITCH CIRCUIT - A switch circuit including a control unit and a voltage level adjusting circuit is provided. The control unit has a first end, a second end, and a third end. The first end of the control unit receives a first voltage, and the voltage difference between the first end and the third end is steady. In addition, the voltage level adjusting circuit has a switch which is determined whether or not turning on according to the voltage on the second end of the control unit, so as to determine whether driving a load or not. The voltage level adjusting circuit is used for adjusting a bias of the load on driving. The switch has a source. The voltage on the source is varied following the ON/OFF of the switch, and the voltage on the third end of the control unit is varied following the voltage on the source. | 09-04-2008 |