Tien-Chi
Tien-Chi Lin, New Taipei TW
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20160079874 | CONSTANT ON-TIME (COT) CONTROL IN ISOLATED CONVERTER - A constant on-time isolated converter comprising a transformer is disclosed. The transformer primary side connects to an electronic switch and secondary-side connects to a load and a processor. The processor connects to a driver on primary side through at least one coupling element and to the electronic switch. The processor receives an output voltage or an output current across the load generating a control signal. The driver receives control signal through the coupling element and accordingly changes the electronic switch ON/OFF state, regulating output voltage and current via the transformer, where the electronic switch ON/OFF duration is determined between the moment control signal changes from negative to positive and the moment it changes from positive to negative to achieve a high-speed response to load transient. | 03-17-2016 |
20160079875 | CONSTANT ON TIME COT CONTROL IN ISOLATED CONVERTER - The present invention discloses a constant on-time isolated converter comprising a transformer with a primary side and a secondary side. The primary side is connected to an electronic switch and secondary-side is connected to a load and a processor. The processor is connected to a driver on primary side through at least one coupling element and to the electronic switch. The processor receives an output voltage or an output current across the load generating a control signal accordingly. The driver receives the control signal through the coupling element and accordingly changes the ON/OFF state of the electronic switch, regulating the output voltage and the output current via the transformer, where the duration of the ON/OFF state of the electronic switch is determined between the moment control signal changes from negative to positive and the moment it changes from positive to negative to achieve a high-speed load transient response. | 03-17-2016 |
20160079876 | CONSTANT ON-TIME (COT) CONTROL IN ISOLATED CONVERTER - The present invention discloses a constant on-time isolated converter comprising a transformer with a primary side and a secondary side. The primary side is connected to an electronic switch and secondary-side is connected to a load and a processor. The processor is connected to a driver on primary side through at least one coupling element and to the electronic switch. The processor receives an output voltage or an output current across the load generating a control signal accordingly. The driver receives the control signal through the coupling element and accordingly changes the ON/OFF state of the electronic switch, regulating the output voltage and the output current via the transformer, where the duration of the ON/OFF state of the electronic switch is determined between the moment control signal changes from negative to positive and the moment it changes from positive to negative to achieve a high-speed load transient response. | 03-17-2016 |
20160079877 | CONSTANT ON-TIME (COT) CONTROL IN ISOLATED CONVERTER - The present invention discloses a constant on-time isolated converter comprising a transformer with a primary side and a secondary side. The primary side is connected to an electronic switch and secondary-side is connected to a load and a processor. The processor is connected to a driver on primary side through at least one coupling element and to the electronic switch. The processor receives an output voltage or an output current across the load generating a control signal accordingly. The driver receives the control signal through the coupling element and accordingly changes the ON/OFF state of the electronic switch, regulating the output voltage and the output current via the transformer, where the duration of the ON/OFF state of the electronic switch is determined between the moment control signal changes from negative to positive and the moment it changes from positive to negative to achieve a high-speed load transient response. | 03-17-2016 |
20160079878 | CONSTANT ON TIME (COT) CONTROL IN ISOLATED CONVERTER - The present invention discloses a constant on-time isolated converter comprising a transformer with a primary side and a secondary side. The primary side is connected to an electronic switch and secondary-side is connected to a load and a processor. The processor is connected to a driver on primary side through at least one coupling element and to the electronic switch. The processor receives an output voltage or an output current across the load generating a control signal accordingly. The driver receives the control signal through the coupling element and accordingly changes the ON/OFF state of the electronic switch, regulating the output voltage and the output current via the transformer, where the duration of the ON/OFF state of the electronic switch is determined between the moment control signal changes from negative to positive and the moment it changes from positive to negative to achieve a high-speed load transient response. | 03-17-2016 |
Tien-Chi Lin US
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20120212202 | FEEDBACK TERMINAL OF POWER CONVERTER HAVING PROGRAMMING FUNCTION FOR PARAMETER SETTING - A control circuit of a power converter according to the present invention comprises a switching circuit, a sample-and-hold circuit and a current source. The switching circuit generates a switching signal in response to a feedback signal. The sample-and-hold circuit samples the feedback signal. The current source is coupled to a feedback terminal for generating a programming voltage. A programmable signal is generated in accordance with the programming voltage and the feedback signal, and the programmable signal is coupled to set a parameter. | 08-23-2012 |
Tien-Chi Lin, New Taipei City TW
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20120281434 | METHOD AND APPARATUS FOR CONTROLLING RESONANT POWER CONVERTER - A control circuit of a resonant power converter is disclosed. The control circuit comprises a first transistor and a second transistor for switching a transformer and a resonant tank comprising a capacitor and an inductor. A controller is configured to receive a feedback signal correlated to the output of the power converter for generating a first switching signal and a second switching signal to drive the first transistor and the second transistor, respectively. A diode coupled to the first transistor and the resonant tank for detecting the state of the first transistor and generating a detection signal for the controller. The detection signal indicates if the transistors are in a zero voltage switching (ZVS) state. If the transistors are not in the ZVS state, the switching frequency of the transistors will be increased. | 11-08-2012 |
20120300503 | CONTROL CIRCUIT WITH ZVS-LOCK AND ASYMMETRICAL PWM FOR RESONANT POWER CONVERTER - A control circuit for a resonant power converter and a control method thereof are disclosed. The control circuit comprises a first transistor and a second transistor switching a transformer through a resonant tank. A controller receives a feedback signal for generating a first switching signal and a second switching signal coupled to drive the first transistor and the second transistor respectively. The feedback signal is correlated to an output of the resonant power converter. A diode is coupled to the second transistor for detecting the state of the second transistor for the controller. The first switching signal and the second switching signal are modulated to achieve a zero voltage switching (ZVS) for the second transistor. | 11-29-2012 |
Tien-Chi Ma, New Taipei City TW
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20130052845 | PORTABLE ELECTRONIC DEVICE HAVING A CAM MECHANISM FOR PLUG EXTENSION AND RETRACTION - The present invention relates to a portable electronic device, which includes a housing having a receiving space therein, a core element received in the receiving space and having a plug at a front end thereof and a track adjacent to a rear end thereof, and a cam pivotally connected to the housing at a position adjacent to a first end thereof. When the first end of the cam is turned (e.g., by the user) in a certain direction, a second end of the cam is moved toward a plug opening of the housing. As a result, a pin at a second end of the cam presses against the track and thereby pushes the core element and extends the plug out of the housing through the plug opening. Due to the simple structure, the portable electronic device can be rapidly produced by an automated assembly process. | 02-28-2013 |
Tien-Chi Wu, Yonghe TW
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20110165722 | METHOD FOR FORMING STRUCTURE FOR REDUCING NOISE IN CMOS IMAGE SENSORS - A method and device is disclosed for reducing noise in CMOS image sensors. An improved CMOS image sensor includes a light sensing structure surrounded by a support feature section. An active section of the light sensing structure is covered by no more than optically transparent materials. A light blocking portion includes a black light filter layer and an opaque layer covering the support feature section. The light blocking portion may also cover a peripheral portion of the light sensing structure. The method for forming the CMOS image sensors includes using film patterning and etching processes to selectively form the opaque layer where the light blocking portion is desired but not over the active section. | 07-07-2011 |
20130023083 | METHOD FOR FORMING STRUCTURE FOR REDUCING NOISE IN CMOS IMAGE SENSORS - A method and device is disclosed for reducing noise in CMOS image sensors. An improved CMOS image sensor includes a light sensing structure surrounded by a support feature section. An active section of the light sensing structure is covered by no more than optically transparent materials. A light blocking portion includes an opaque layer or a black light filter layer in conjunction with an opaque layer, covering the support feature section. The light blocking portion may also cover a peripheral portion of the light sensing structure. The method for forming the CMOS image sensors includes using film patterning and etching processes to selectively form the opaque layer and the black light filter layer where the light blocking portion is desired, but not over the active section. The method also provides for forming microlenses over the photosensors in the active section. | 01-24-2013 |
20140252525 | METHOD FOR FORMING STRUCTURE FOR REDUCING NOISE IN CMOS IMAGE SENSORS - A method and device is disclosed for reducing noise in CMOS image sensors. An improved CMOS image sensor includes a light sensing structure surrounded by a support feature section. An active section of the light sensing structure is covered by no more than optically transparent materials. A light blocking portion includes an opaque layer or a black light filter layer in conjunction with an opaque layer, covering the support feature section. The light blocking portion may also cover a peripheral portion of the light sensing structure. The method for forming the CMOS image sensors includes using film patterning and etching processes to selectively form the opaque layer and the black light filter layer where the light blocking portion is desired, but not over the active section. The method also provides for forming microlenses over the photosensors in the active section. | 09-11-2014 |
Tien-Chi Yao US
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20140197089 | WATER FILTRATION KETTLE WITH A STERILIZATION FUNCTION - A water filtration kettle includes a container unit, a filtering unit, a bactericidal lamp and a power supply module. An interior of the container unit is provided with a water storage chamber and a water purification chamber which is disposed below the water storage chamber. A port is disposed between the water storage chamber and the water purification chamber, allowing the stored water to flow through. The filtering unit is disposed at the port of the container unit, and the bactericidal lamp is disposed at a side of the water purification chamber of the container unit. By the filtering function of the filtering unit and the sterilization function of the bactericidal lamp, the water filtration kettle is both provided with the filtering and sterilization function, allowing a user to consume the drinking water safely. | 07-17-2014 |
Tien-Chi Yao, New Taipei TW
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20140197089 | WATER FILTRATION KETTLE WITH A STERILIZATION FUNCTION - A water filtration kettle includes a container unit, a filtering unit, a bactericidal lamp and a power supply module. An interior of the container unit is provided with a water storage chamber and a water purification chamber which is disposed below the water storage chamber. A port is disposed between the water storage chamber and the water purification chamber, allowing the stored water to flow through. The filtering unit is disposed at the port of the container unit, and the bactericidal lamp is disposed at a side of the water purification chamber of the container unit. By the filtering function of the filtering unit and the sterilization function of the bactericidal lamp, the water filtration kettle is both provided with the filtering and sterilization function, allowing a user to consume the drinking water safely. | 07-17-2014 |