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公开(公告)号：US20210367506A1
公开(公告)日：2021-11-25
申请号：US17027125
申请日：2020-09-21
Applicant: ASIAN POWER DEVICES INC.
Inventor： Yeu-Torng YAU , Tsung-Liang HUNG
Abstract: A conversion apparatus with overload control includes a primary conversion circuit, a resonant conversion circuit, and a control unit. The control unit controls a voltage value of a DC power source outputted from the primary conversion circuit according to a current signal of an output current of the resonant conversion circuit. When the control unit realizes that the output current exceeds a rated current according to the current signal, the control unit steps up the voltage value of the DC power source.
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公开(公告)号：US11018593B1
公开(公告)日：2021-05-25
申请号：US16718680
申请日：2019-12-18
Applicant: ASIAN POWER DEVICES INC.
Inventor： Yeu-Torng Yau , Tsung-Liang Hung
Abstract: A dual-mode active clamp flyback converter includes a transformer circuit, a clamping energy storage circuit, and a main switch circuit. The transformer circuit is coupled to a load, and the transformer circuit includes an auxiliary winding. The clamping energy storage circuit is coupled to the transformer circuit. If the load as a heavy loading, the clamping energy storage circuit is turned on. If the load as a light loading, the clamping energy storage circuit is turned off. The main switch circuit is coupled to the transformer circuit. When the main switch circuit is turned on, the auxiliary winding releases energy to a primary-side winding of the transformer circuit.
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公开(公告)号：US10306717B1
公开(公告)日：2019-05-28
申请号：US16038721
申请日：2018-07-18
Applicant: ASIAN POWER DEVICES INC.
Inventor： Yeu-Torng Yau , Tsung-Liang Hung
Abstract: A flicker-free LED driving apparatus and voltage regulating method thereof are disclosed. The apparatus includes a power conversion circuit receiving an AC electricity and then generating an output voltage with a ripple component for an LED string; a feedback circuit electrically connected to the power conversion circuit and generating a feedback signal with varying duty cycle according to operation states of the LED string; a power conversion circuit including, a controller receiving the feedback signal turns on or off a switching device thereof according to the feedback signal; and a linear voltage-regulating circuit electrically connected to the power conversion circuit, the feedback circuit, and the LED string. and configured to regulate the output voltage in accordance with a voltage difference between the output voltage and a voltage across the LED string.
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公开(公告)号：US10271401B1
公开(公告)日：2019-04-23
申请号：US16025948
申请日：2018-07-02
Applicant: ASIAN POWER DEVICES INC.
Inventor： Tsung-Liang Hung , Yeu-Torng Yau
Abstract: An electronic device is provided. The electronic device integrates an enable function and an over-temperature protection function (OTP) on the same line, thereby reducing the PCB layout between a microcontroller and a mainboard circuit, and further reducing the circuit complexity and cost. In addition, the negative temperature coefficient (NTC) thermistor in the electronic device is also directly coupled to a circuit pin used for the enable function of the microcontroller to serve as an over-temperature protection application. Therefore, even if the microcontroller fails, the electronic device may still use the hardware circuit structure to automatically achieve the over-temperature protection function.
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5.发明授权公开(公告)号：US09407136B2
公开(公告)日：2016-08-02
申请号：US14747797
申请日：2015-06-23
Applicant: ASIAN POWER DEVICES INC.
Inventor： Tsung-Liang Hung , Yeu-Torng Yau
CPC classification number: H02M1/4225 , H02M1/34 , H02M1/42 , H02M1/4208 , H02M3/156 , H02M2001/0058 , H02M2001/346 , Y02B70/126 , Y02B70/1491 , Y02P80/112
Abstract: A passive coupled-inductor soft-switching circuit of a power factor corrector is provided. The passive coupled-inductor soft-switching circuit includes a power input terminal, a first inductor, a first diode, a power output terminal, a power switch and a buffer circuit. The first inductor has a first terminal and a second terminal, wherein the first terminal of the first inductor is electrically coupled with the power input terminal. The first diode has a positive terminal and a negative terminal, wherein the positive terminal of the first diode is electrically coupled with the second terminal of the first inductor. The power output terminal is electrically coupled with the negative terminal of the first diode. The buffer circuit is electrically coupled with the power switch. By using the buffer circuit, the voltage and current have phase interlacing shifts and thereby reducing the switching loss.
Abstract translation: 提供功率因数校正器的无源耦合电感软开关电路。 无源耦合电感软开关电路包括电源输入端，第一电感，第一二极管，功率输出端，电源开关和缓冲电路。 第一电感器具有第一端子和第二端子，其中第一电感器的第一端子与电力输入端子电耦合。 第一二极管具有正极端子和负极端子，其中第一二极管的正极端子与第一电感器的第二端子电耦合。 电源输出端子与第一二极管的负极端子电连接。 缓冲电路与电源开关电耦合。 通过使用缓冲电路，电压和电流具有相位交错位移，从而降低开关损耗。
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Patent Agency Ranking
公开(公告)号：US20160072272A1
公开(公告)日：2016-03-10
申请号：US14802822
申请日：2015-07-17
Applicant: ASIAN POWER DEVICES INC.
Inventor： Chih-Yuan HSU
IPC: H02H3/20
CPC classification number: H02H9/041 , H02M2001/322
Abstract: A discharge circuit includes a discharge switch trigger unit, a discharge switch unit and a discharge resistor unit. The discharge switch unit is coupled connected to the discharge switch trigger unit. The discharge resistor unit is coupled connected to the discharge switch unit. The discharge switch trigger unit and the discharge resistor unit are coupled connected to a voltage output side. When the output voltage of a power supply reaches a predetermined rated limitation, an over voltage protection circuit is activated, and the discharge switch unit is turned on by the discharge switch trigger unit, then the output voltage starts to decrease through the discharge resistor unit.
Abstract translation: 放电电路包括放电开关触发单元，放电开关单元和放电电阻单元。 放电开关单元连接到放电开关触发单元。 放电电阻单元耦合连接到放电开关单元。 放电开关触发单元和放电电阻单元耦合连接到电压输出侧。 当电源的输出电压达到预定的额定限制时，过电压保护电路被激活，放电开关单元由放电开关触发单元导通，然后输出电压通过放电电阻单元开始减小。
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7.发明申请公开(公告)号：US20160043631A1
公开(公告)日：2016-02-11
申请号：US14747797
申请日：2015-06-23
Applicant: ASIAN POWER DEVICES INC.
Inventor： TSUNG-LIANG HUNG , YEU-TORNG YAU
CPC classification number: H02M1/4225 , H02M1/34 , H02M1/42 , H02M1/4208 , H02M3/156 , H02M2001/0058 , H02M2001/346 , Y02B70/126 , Y02B70/1491 , Y02P80/112
Abstract: A passive coupled-inductor soft-switching circuit of a power factor corrector is provided. The passive coupled-inductor soft-switching circuit includes a power input terminal, a first inductor, a first diode, a power output terminal, a power switch and a buffer circuit. The first inductor has a first terminal and a second terminal, wherein the first terminal of the first inductor is electrically coupled with the power input terminal. The first diode has a positive terminal and a negative terminal, wherein the positive terminal of the first diode is electrically coupled with the second terminal of the first inductor. The power output terminal is electrically coupled with the negative terminal of the first diode. The buffer circuit is electrically coupled with the power switch. By using the buffer circuit, the voltage and current have phase interlacing shifts and thereby reducing the switching loss.
Abstract translation: 提供功率因数校正器的无源耦合电感软开关电路。 无源耦合电感软开关电路包括电源输入端，第一电感，第一二极管，功率输出端，电源开关和缓冲电路。 第一电感器具有第一端子和第二端子，其中第一电感器的第一端子与电力输入端子电耦合。 第一二极管具有正极端子和负极端子，其中第一二极管的正极端子与第一电感器的第二端子电耦合。 电源输出端子与第一二极管的负极端子电连接。 缓冲电路与电源开关电耦合。 通过使用缓冲电路，电压和电流具有相位交错位移，从而降低开关损耗。
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公开(公告)号：US09246380B2
公开(公告)日：2016-01-26
申请号：US14331554
申请日：2014-07-15
Applicant: ASIAN POWER DEVICES INC.
Inventor： Chih-Lung Yang , Tsung-Liang Hung
CPC classification number: H02M1/4225 , H02M2001/0012 , H02M2001/0032 , H02M2001/0054 , Y02B70/126 , Y02B70/1491 , Y02B70/16 , Y02P80/112
Abstract: A control circuit module for a power factor corrector is provided to convert the operation mode of the inductor current from the boundary conduction mode (BCM) to the discontinuous conduction mode (DCM) when a transistor element is operated under the valley inductor current, thus reducing the switching frequency and increasing system efficiency, also to maintain the operation mode of the inductor current in the BCM when the transistor element is operated under the peak inductor current, thus maintaining system efficiency.
Abstract translation: 提供了一种用于功率因数校正器的控制电路模块，用于当晶体管元件在谷值电感电流下工作时，将电感电流从边界导通模式（BCM）的工作模式转换为不连续导通模式（DCM），从而减小 开关频率和提高系统效率，同时在晶体管元件工作在峰值电感电流下时，保持BCM中电感电流的工作模式，从而保持系统效率。
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公开(公告)号：US09236808B1
公开(公告)日：2016-01-12
申请号：US14533103
申请日：2014-11-05
Applicant: ASIAN POWER DEVICES INC.
Inventor： Tsung-Liang Hung , Ya-Lun Ouyang , Yeu-Torng Yau
CPC classification number: H02M3/33576 , H02M3/285 , H02M2001/0058 , Y02B70/1433 , Y02B70/1491 , Y02P80/112
Abstract: A parallel resonant converter circuit with current-equalization function includes a power input terminal, a power output terminal, an output capacitor, first and second resonant converters and a third transformer. The first resonant converter is electrically coupled between the power input terminal and the output capacitor/power output terminal. The first resonant converter includes a first transformer. The second resonant converter is electrically coupled between the power input terminal and the output capacitor. The first resonant converter and the second resonant converter are coupled in parallel. The second resonant converter includes a second transformer. The third transformer includes a first coil winding set and a second coil winding set. The first coil winding set is electrically coupled between the power input terminal and the first transformer in series. The second coil winding set is electrically coupled between the power input terminal and the second transformer in series.
Abstract translation: 具有电流均衡功能的并联谐振转换器电路包括电源输入端子，功率输出端子，输出电容器，第一和第二谐振变换器和第三变压器。 第一谐振转换器电耦合在电源输入端和输出电容/功率输出端之间。 第一谐振转换器包括第一变压器。 第二谐振转换器电耦合在电源输入端和输出电容之间。 第一谐振转换器和第二谐振转换器并联耦合。 第二谐振转换器包括第二变压器。 第三变压器包括第一线圈绕组和第二线圈绕组。 第一线圈绕组被串联地电耦合在电源输入端和第一变压器之间。 第二线圈绕组组电连接在电力输入端和第二变压器之间。
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10.发明申请公开(公告)号：US20150188414A1
公开(公告)日：2015-07-02
申请号：US14464666
申请日：2014-08-20
Applicant: ASIAN POWER DEVICES INC.
Inventor： Yu-Chi LAI , Tsung-Liang HUNG
CPC classification number: H02M3/1582 , H02M1/4225 , Y02B70/126 , Y02P80/112
Abstract: A single-phase power factor corrector with step-up and step-down functions provides a step-up circuit and a step-down circuit which are connected in parallel to each other and thereby stabilizes an output voltage of the power factor corrector.
Abstract translation: 具有升压和降压功能的单相功率因数校正器提供彼此并联连接的升压电路和降压电路，从而稳定功率因数校正器的输出电压。
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