Patent application number | Description | Published |
20110148571 | DEVICE FOR POWERING ON COMPUTER - A coded entry controlled device can power on a computer. A control circuit receives a power on coded entry via a keyboard and compares the input power on coded entry with an entry pre-stored in a storage circuit. The microcontroller actuates a switch circuit to power on the computer in response to a correct entry. | 06-23-2011 |
20110234163 | DRY CELL BATTERY DISCHARGING SYSTEM - Used dry cell batteries having a terminal voltage less than a working voltage of a previously applied device but higher than an exhaustion voltage below which the dry cell batteries stop discharging can be used in a present provided discharging system. The used dry cell batteries are connected in series. The discharging system also includes a discharging unit, a measuring unit, a judging unit, and an indicating unit. The discharging unit discharges the used dry cell batteries. The measuring unit measures the terminal voltage of each dry cell battery. The judging unit judges if the terminal voltage of each dry cell battery is less than a preset voltage below which the dry cell battery is deemed to be exhausted. The indicating unit indicates which dry cell battery has the terminal voltage less than the preset value for replacement. | 09-29-2011 |
20110236194 | FAN APPARATUS WITH AIR DUCT - An air duct includes a cover and two adjusting pieces. The cover includes a top board and two end boards extending downwards from two opposite ends of the top board. The cover defines an air outlet in a front of the cover and an air intake in a rear of the cover. Two adjusting pieces are slantingly extended from rear ends of the two side boards toward the air outlet. | 09-29-2011 |
20110260542 | POWER CONTROL CIRCUIT - A power control circuit includes a switch circuit, a current sampling circuit, a controller, and a standby power circuit. The switch circuit is connected to an alternating current (AC) power source and an electronic device. The sampling circuit is used to sample a current of a line of the AC power source. The controller is used to determine whether the sampled current is within a predetermined range, and turn off the switch circuit if the sampled current is within a predetermined range to disconnect the electronic device from the AC power source. | 10-27-2011 |
20120166820 | RESTART CIRCUIT OF SERVER - A restart circuit includes a voltage input terminal, a diode, an electronic switch, a restart signal output terminal, and a timing chip. The voltage input terminal is connected to an anode of the diode. A cathode of the diode is connected to a power pin and a reset pin of the chip and connected to a trigger pin of the chip through a resistor. A trigger pin of the chip is grounded through a capacitor. A count pin of the chip is grounded through a capacitor. A discharge pin and a threshold pin of the chip are connected and grounded through a resistor and a capacitor in that order. An output pin of the chip is connected to a control terminal of the switch. A first terminal of the switch is grounded. A second terminal of the switch is connected to the restart signal output terminal. | 06-28-2012 |
20120242347 | CHECKING CIRCUIT FOR SERIAL PORT CONNECTORS - A checking circuit for a serial port connector includes a first inverter, a second inverter, a third inverter, and a first light emitting diode (LED) and a second LED with different colors. An input of the first inverter is connected to a transmitted data pin of the serial port connector. An output of the first inverter is connected to an anode of the first LED. An input of the second inverter is connected to the transmitted data pin of the serial port connector. An output of the second inverter is connected to an input of the third inverter. An output of the third inverter is connected to an anode of the second LED. Cathodes of the first and second LEDs are grounded. | 09-27-2012 |
20130024714 | POWER MEASUREMENT DEVICE - A device to measure power consumption includes a processor connected to a central processing unit (CPU) and a memory module, a switch for setting the power measurement device to measure either the power supplied to the CPU or the power supplied to the memory, and a display to show the results of such measurements. | 01-24-2013 |
20130027827 | PROTECTION CIRCUIT - A protection circuit includes an integrated circuit (IC), a peripheral circuit connected to the IC, and a measurement circuit connected to an enable pin of the IC. The peripheral circuit includes at least one element which generates heat. The measurement circuit includes a power supply, a resistor, and a thermistor. The heat from the element raises the temperature of the thermistor and changes a resistance of the thermistor and decreases a voltage of the node. When the voltage of the node is less than or equals to a standard voltage of the enable pin of the IC, the IC and the peripheral circuit stop working. | 01-31-2013 |
20130031380 | POWER SUPPLY CONVERTING SYSTEM AND METHOD - A power supply converting system includes a start unit for outputting power to a server through a number of circuitries, an obtaining unit, a comparison unit, a memory module, and a converting unit. The obtaining unit is connected to the start unit and the server, to obtain the model code of a central processing unit (CPU) of the server and transmits the model code to the comparison unit. The comparison unit compares the model code of the server CPU against a plurality of circuitry codes in a truth table stored in the memory module, to obtain a circuitry code corresponding to the model code of the server CPU. The converting unit adjusts the numbers of turned on circuitries based on the circuitry code from the comparison unit. | 01-31-2013 |
20130033792 | PROTECTION CIRCUIT FOR DIGITAL INTEGRATED CHIP - A protection circuit includes first and second electronic switches. When a CPU socket does not contain a CPU, a signal pin of the CPU socket outputs a high level signal. The first and second electronic switches are turned on. A data transmitting line of a SMBus is connected to a digital integrated chip. The parameters of the digital integrated chip can thus be regulated. When the CPU socket contains the CPU, the signal pin of the CPU socket outputs a low level signal. The first and second electronic switches are turned off. The data transmitting line of the SMBus is disconnected from the digital integrated chip, to prevent damage to the digital integrated chip. | 02-07-2013 |
20130033953 | COMPUTER MOTHERBOARD AND VOLTAGE ADJUSTMENT CIRCUIT THEREOF - A voltage adjustment circuit includes a south bridge, a complex programmable logic device (CPLD), a power supply unit, a voltage conversion unit, and a resistance unit. The south bridge detects a type of a number of dynamic random access memories (DRAMs), and outputs a corresponding signal according to a detected result of the type of the DRAMs. The CPLD is connected to the south bridge to receive the signal, and outputs a corresponding control signal according to the signal. The voltage conversion unit is connected to the power supply unit and the DRAMs, and converts voltage output from the power supply unit into a stable voltage. The resistance unit is connected to the CPLD and the voltage conversion unit, and provides different resistance according to the control signal received from the CPLD, to adjust the voltage output from the voltage conversion unit to an operation voltage of the DRAMs. | 02-07-2013 |
20130038141 | FAN CONTROL CIRCUIT - A fan control circuit is used to control first and second fans to be powered on at different time after receiving a power good (PWGD) signal from a motherboard. The fan control circuit includes a first control circuit, a delay circuit, and a second control circuit. The first control circuit and the delay circuit are connected to the motherboard to receive the PWGD signal. The first control circuit powers the first fan after receiving the PWGD signal. The delay circuit delays the received PWGD signal, and outputs the delayed PWGD signal to the second control circuit after a delay time. The second control circuit powers the second fan after receiving the delayed PWGD signal. | 02-14-2013 |
20130043853 | POWER MATCHING SYSTEM - A power matching system is applied to a central processing unit (CPU) power supply, which includes a power control chip to regulate the frequency of the signal applied to the CPU power supply. The power control chip includes a detecting pin. The power matching system includes a control unit and a control circuit. The control unit includes a platform controller hub (PCH) to obtain information concerning a CPU, a basic input output system (BIOS) to obtain a power rating of the CPU, and an integrated baseboard management controller (IBMC) to output a required signal to the control circuit according to the power rating established. The power control chip receives the required signal from the control circuit and regulates the frequency of the signal applied to the CPU power supply. | 02-21-2013 |
20130050091 | PASSWORD INPUT DEVICE - A password input device includes a display unit, an input unit and a control unit. The display unit includes a group of LCD displays for display numerals. The input unit includes a group of keys corresponding to the LCD displays. The keys are positioned on the corresponding LCD displays; the control unit creates a group of numerical key sequences, and controls the LCD displays to display the numerical key sequences through the keys. | 02-28-2013 |
20130055024 | CENTRAL PROCESSING UNIT TEST SYSTEM - A central processing unit (CPU) test system includes a CPU socket, a CPU core controller, and a CPU test device. The CPU core controller stores a start voltage message. The CPU test device includes a voltage detection pin, an analog to digital (A/D) converter, and a microcontroller. The voltage detection pin detects a voltage of an electronic device connected to the CPU socket. The A/D converter converts the detected voltage into a digital signal. The microcontroller controls the CPU core controller to output the start voltage to the CPU socket according to the digital signal. The microcontroller stores a predetermined start voltage message. The microcontroller reads the start voltage message after controlling the CPU core controller to output the start voltage, and determines whether the CPU core controller supplies the start voltage to the CPU socket by comparing the read start voltage message with the predetermined start voltage message. | 02-28-2013 |
20130067279 | TEST SYSTEM WITH MOTHERBOARD AND TEST CARD - A test system includes a motherboard and a test card. The motherboard includes a number of electronic components and a first connector. The test card includes a second connector and a number of indicating circuits. The first connector includes a number of signal pins. Each signal pin of the first connector is connected to a corresponding signal terminal of the electronic components, to receive a power good signal. The second connector includes a number of signal pins. Each signal pin of the second connector is connected to a corresponding signal pin of the first connector, to receive a corresponding power good signal. Each indicating circuit is connected to a corresponding signal pin of the second connector, and indicates whether the corresponding signal pin of the second connector outputs a power good signal. | 03-14-2013 |
20130070412 | EXPANSION APPARATUS WITH SERIAL ADVANCED TECHNOLOGY ATTACHMENT DUAL IN-LINE MEMORY MODULE - An expansion apparatus includes a serial advanced technology attachment dual-in-line memory module (SATA DIMM) with a first circuit board, an expansion card with a second circuit board, and a cable member. A first edge connector is set on a bottom edge of the first circuit board and includes a number of first power pins connected to a control chip, a number of first storage chips, and a first connector, and a number of first ground pins. A second edge connector is set on a bottom edge of the second circuit board and includes a number of second power pins connected to a number of second storage chips and a second connector, and a number of second ground pins. The cable member includes a cable, a third connector connected to the first connector, and a fourth connector connected to the second connector. | 03-21-2013 |
20130088805 | OVERHEATING PROTECTION CIRCUIT FOR ELECTRONIC DEVICES - An overheating protection circuit for an electronic device includes a detection circuit, a switch element, and a control element. The detection circuit is positioned adjacent to an integrated circuit (IC) peripheral circuit of the electronic device and detects a temperature of the IC peripheral circuit. The switch element is electrically connected to the detection circuit, and the control element is electrically connected to the switch element and a heat dissipation device of the electronic device. The detection circuit generates a detection signal to turn on the switch element in response to detecting that a temperature of the IC peripheral circuit increases, and the control element controls the heat dissipation device to dissipate heat generated by the IC peripheral circuit in response to detecting that the switch element is turned on. | 04-11-2013 |
20130091363 | POWER SUPPLY SYSTEM FOR CENTRAL PROCESSING UNIT - A power supply system for a central processing unit (CPU) mounted on a motherboard includes a power supply unit, a conducting layer, and a number of conducting foils. The conducting layer is set on the motherboard. The conducting foils are connected to the conducting layer in parallel. The power supply unit supplies power to the CPU through the conducting layer and the conducting foils. | 04-11-2013 |
20130094152 | ELECTRONIC DEVICE AND HEAT SINK EMPLOYING THE SAME - A heat sink is used to cool electronic components, and includes a metal base portion, a motherboard and a heat conducting sheet. The motherboard and the heat conducting sheet are positioned on the metal base portion. The motherboard includes a copper foil. The electronic components are electrically connected on the copper foil; the heat conducting sheet is positioned between the metal base portion and the motherboard, and contacts the metal base portion and the motherboard. The heat of the electronic components is conducted to the metal base portion through the copper foil, the motherboard and the heat conducting sheet. | 04-18-2013 |
20130099568 | POWER SUPPLY CIRCUIT FOR MEMORY SLOTS - A power supply circuit for providing a voltage to a memory slot group with one or more memory slots includes a platform controller hub (PCH), a basic input/output system (BIOS), and a control circuit. The PCH detects whether any of the memory slots are occupied, and notifies the BIOS. If there are any memory slots are occupied, the BIOS enables a general purpose input/output (GPIO) terminal of the PCH. The control circuit controls a power supply to provide or not provide power to the memory slot group based on whether the GPIO terminal of the PCH is enabled. | 04-25-2013 |
20130100631 | ELECTRONIC DEVICE WITH SUPPORTING APPARATUS - A supporting apparatus for supporting a casing of an electronic device includes a supporting member and a locating member. The supporting member includes a supporting block supporting a bottom of the casing, and an extending block extending up from an end of the supporting block. The locating member is fixed to the extending block and to be detachably fixed to a sidewall of the electronic device. | 04-25-2013 |
20130103349 | POWER SUPPLY UNIT WITH SERVICE LIFE EXPIRATION ALARM AND METHOD THEREOF - A power supply unit includes a storage unit, a temperature detecting unit, a ripple voltage detecting unit, and a processor. The storage unit stores a conversion relationship between ripple voltages V in different temperature ranges and equivalent ripple voltages V | 04-25-2013 |
20130106384 | VOLTAGE CONVERTING CIRCUIT | 05-02-2013 |
20130144545 | CPU POWER TESTING APPARATUS AND METHOD - A CPU power testing apparatus includes a CPU power supplying circuit; a first A/D converter connected with an input of the CPU power supplying circuit. The first A/D converter obtains an input voltage of the CPU power supplying circuit and converts the input voltage into digital values Vin. A second A/D converter connected with an output of the CPU power supplying circuit obtains an output voltage of the CPU power supplying circuit and converts the output voltage into digital values Vout. A single-chip microcontroller obtains Vin from the first A/D converter, and Vout from the second A/D converter, and the system parameters of an application platform, and calculates and displays an amount of the power being consumed by the CPU according to a predetermined formula. | 06-06-2013 |
20130164999 | SERVER WITH POWER SUPPLY UNIT - A server includes an enclosure made of conductive material defining a first through hole and a second through hole, a power supply unit (PSU) converting alternating current power into direct current voltages, a motherboard, and first and second fasteners. The PSU includes a first power connector and a ground connector, and defines a screw hole. The ground connector is coupled to a shell of the PSU and a ground line of a plug of the PSU that receives the alternating current power. The motherboard includes a second power connector connected to the first power connector, and defines a fixing hole coated with conductive material electrically connected to a ground layer of the motherboard. The first fastener extends through the first through hole to engage in the screw hole of the PSU, and the second fastener extends through the second through hole to engage in the fixing hole. | 06-27-2013 |
20130249291 | POWER SUPPLY CIRCUIT - A power supply circuit includes a comparator, first to third electronic switches, a D-trigger, a power supply unit (PSU), and a complex programmable logic device (CPLD). When a voltage from the PSU is greater than a reference voltage, the first electronic switch is turned on. An electronic device connected to the first electronic does not receive power from the PSU. The second electronic switch is turned on. The third electronic switch is turned off. The D-trigger outputs a low level signal to make the CPLD control the PSU stop supplying power. | 09-26-2013 |
20130262885 | POWER SUPPLY DEVICE FOR SOLID STATE DRIVE - A power supply device for a solid state drive (SSD) inserted into a slot of a computer includes a number of voltage input contacts, a diode, a first voltage regulating module and a second voltage regulating module connected in series. The slot includes a number of voltage output contacts and a number of signal transmitting contacts. The voltage input contacts are connected to the voltage output contacts and selectively connected to the signal transmitting contacts. The voltage input contacts obtains an initial voltage from the slot from the voltage output contacts or the signal transmitting contacts. The first voltage regulating module boosts the initial voltage. The second voltage regulating module regulates the boosted voltage to a preset voltage. The diode prevents a voltage outputting from the voltage input contacts to the signal transmitting contacts. | 10-03-2013 |
20130279104 | POWER SUPPLY SYSTEM FOR SERVER CABINET - A power supply system provides power to a server cabinet, which includes a number of servers. A number of sockets, first and second electrical connecting portions, first and second through holes are arranged on a power connecting board. Each socket includes a first power pin connected to the first electrical connecting portion and a first ground pin connected to the second electrical connecting portion. A number of power interfaces, third and fourth electrical connecting portions, third and fourth through holes are arranged on a base. Each power interface includes a second power pin connected to the third electrical connecting portion and a second ground pin connected to the fourth electrical connecting portion. The base is electrically connected to the power connecting board when the first connecting element engages in the first and third through holes and the second connecting element engages in the second and fourth through holes. | 10-24-2013 |
20130289906 | CIRCUIT FOR DISPLAYING ENERGY CONSUMPTION - A circuit is used for displaying the amount of electrical energy consumed by an electronic device. The circuit includes an analog to digital (A/D) converting circuit, a microprocessor connected to the A/D converting circuit, and a display connected to a microprocessor for displaying the energy consumed by the electronic device. | 10-31-2013 |
20130346773 | ENERGY-SAVING CIRCUIT FOR MOTHERBOARD - When there is a memory module mounted in a memory slot, a memory power circuit provides a voltage to the memory slot. First and second power pins of the memory slot are connected. A first electronic switch is turned on. A second electronic switch is turned off. A programmable logic controller (PLC) outputs a first control signal to the memory power circuit to output the voltage to the memory slot. When there is no memory module mounted in the memory slot and the motherboard is powered on, the memory power circuit provides a voltage to the memory slot. The first and second power pins of the memory slot are disconnected. The first electronic switch is turned off. The second electronic switch is turned on. The PLC outputs a second control signal to control the memory power circuit not to output the voltage to the memory slot. | 12-26-2013 |