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公开(公告)号：US09081401B2
公开(公告)日：2015-07-14
申请号：US13728605
申请日：2012-12-27
Applicant: Chia-Wei Liao , Leng-Nien Hsiu , Pei-Yuan Chen , Roland Van Roy , Jing-Meng Liu
Inventor： Chia-Wei Liao , Leng-Nien Hsiu , Pei-Yuan Chen , Roland Van Roy , Jing-Meng Liu
CPC classification number: G05F1/455 , G05F1/10 , G05F3/02 , H05B33/0815 , H05B37/02 , Y02B20/346
Abstract: The present invention discloses a switching regulator and a control circuit and a control method thereof. The switching regulator generates a compensation signal according to a feedback signal, and generates a driving signal according to the compensation signal, to control a power stage for converting an input voltage to an output voltage. The compensation signal is adjusted according to the input voltage, such that when the input voltage is equal to or lower than a predetermined level, the compensation signal is kept at a predetermined value.
Abstract translation: 本发明公开了一种开关调节器及其控制电路及其控制方法。 开关调节器根据反馈信号产生补偿信号，并根据补偿信号产生驱动信号，以控制用于将输入电压转换为输出电压的功率级。 根据输入电压调整补偿信号，使得当输入电压等于或低于预定电平时，补偿信号保持在预定值。
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2.发明申请POWER SUPPLY CIRCUIT WITH PFC FUNCTION, AND AUTOMATIC GAIN CONTROL CIRCUIT THEREFOR AND CONTROL METHOD THEREOF 有权具有PFC功能的电源电路及其自动增益控制电路及其控制方法公开(公告)号：US20130250631A1
公开(公告)日：2013-09-26
申请号：US13846568
申请日：2013-03-18
Applicant: Chia-Wei Liao , Jing-Meng Liu
Inventor： Chia-Wei Liao , Jing-Meng Liu
IPC: H02M1/12
CPC classification number: H02M1/42 , G05F3/262 , H02M1/08 , H02M1/126 , H02M1/4208 , H02M2001/0009 , Y02B70/126
Abstract: The present invention discloses a power supply circuit with power factor correction (PFC) function, and an automatic gain control circuit therefor and a control method thereof. The power supply circuit includes the automatic gain control circuit and a load driver circuit. The automatic gain control circuit converts an input voltage to a regulation voltage, and the load driver circuit generates an output current according to the regulation voltage. The automatic gain control circuit automatically adjust the regulation voltage such that the regulation voltage has a substantially fixed amplitude or fixed average value under different input voltages of different specifications, and the output current provided by the load driver circuit varies in phase with the input voltage to provide a PFC function.
Abstract translation: 本发明公开了一种具有功率因数校正（PFC）功能的电源电路及其自动增益控制电路及其控制方法。 电源电路包括自动增益控制电路和负载驱动电路。 自动增益控制电路将输入电压转换为调节电压，负载驱动电路根据调节电压产生输出电流。 自动增益控制电路自动调节调节电压，使得调节电压在不同规格的不同输入电压下具有基本上固定的幅度或固定平均值，负载驱动电路提供的输出电流与输入电压相同 提供PFC功能。
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公开(公告)号：US20110012570A1
公开(公告)日：2011-01-20
申请号：US12658560
申请日：2010-02-05
Applicant: Jing-Meng Liu , Chia-Wei Liao , Heng Yun
Inventor： Jing-Meng Liu , Chia-Wei Liao , Heng Yun
IPC: G05F1/613
CPC classification number: H05B33/0818 , H02M3/1582
Abstract: The present invention discloses a synchronous driver circuit, comprising: an inductor having one end coupled to an input voltage; a first power transistor having one end coupled to the other end of the inductor and another end supplying an output voltage; a second power transistor having one end coupled to the other end of the inductor and another end coupled to ground; a control circuit for controlling the operation of the first and second power transistors; a gate driver coupled to the control circuit and having an output controlling the gate of the first power transistor; and a bootstrap capacitor having one end coupled to a voltage node and the other end coupled to the other end of the inductor, the voltage across the bootstrap capacitor being provided as the operational voltage of the gate driver.
Abstract translation: 本发明公开了一种同步驱动器电路，包括：电感器，其一端耦合到输入电压; 第一功率晶体管，其一端耦合到电感器的另一端，另一端提供输出电压; 第二功率晶体管，其一端耦合到电感器的另一端，另一端耦合到地; 用于控制第一和第二功率晶体管的操作的控制电路; 耦合到控制电路并具有控制第一功率晶体管的栅极的输出的栅极驱动器; 以及自耦电容器，其一端耦合到电压节点，另一端耦合到电感器的另一端，所述自举电容器两端的电压被提供为栅极驱动器的工作电压。
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4.发明申请Active Bleeder Circuit Triggering TRIAC in All Phase and Light Emitting Device Power Supply Circuit and TRIAC Control Method Using the Active Bleeder Circuit 有权有源漏电电路触发TRIAC在所有相和发光装置电源电路和TRIAC控制方法使用主动式出血电路公开(公告)号：US20130169177A1
公开(公告)日：2013-07-04
申请号：US13728541
申请日：2012-12-27
Applicant: Chia-Wei Liao , Leng-Nien Hsin , Pei-Yuan Chen , Roland Van Roy , Jing-Meng Liu
Inventor： Chia-Wei Liao , Leng-Nien Hsin , Pei-Yuan Chen , Roland Van Roy , Jing-Meng Liu
CPC classification number: G05F1/455 , G05F1/10 , G05F3/02 , H05B33/0815 , H05B37/02 , Y02B20/346
Abstract: The present invention discloses an active bleeder circuit capable of triggering a tri-electrode AC switch (TRIAC) circuit in all phase. The active bleeder circuit receives a rectified signal having an OFF phase and an ON phase. The active bleeder includes: a detection circuit for generating a detection signal according to the rectified signal and accumulating the detection signal in the OFF phase of the rectified signal; and a current sinker circuit coupled to the detection circuit, for generates a latching current to trigger the TRIAC circuit by operating a switch when the detection signal exceeds a predetermined level. The present invention also discloses a light emitting device power supply circuit and a TRIAC control method using the active bleeder circuit.
Abstract translation: 本发明公开了一种能够全相触发三电极交流开关（TRIAC）电路的有源放电电路。 有源泄放电路接收具有OFF相位和ON相位的整流信号。 有源放电器包括：检测电路，用于根据整流信号产生检测信号，并将检测信号累积在整流信号的OFF相位; 以及耦合到检测电路的电流沉降电路，用于当检测信号超过预定电平时，通过操作开关产生触发TRIAC电路的锁存电流。 本发明还公开了一种使用有源泄放电路的发光器件电源电路和TRIAC控制方法。
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5.发明授权Adaptive leading-edge blanking circuit and method for switching mode power converter 有权自适应前沿消隐电路和开关模式功率转换器的方法公开(公告)号：US07839667B2
公开(公告)日：2010-11-23
申请号：US12071727
申请日：2008-02-26
Applicant: Chia-Wei Liao , Jing-Meng Liu , Jwin-Yen Guo
Inventor： Chia-Wei Liao , Jing-Meng Liu , Jwin-Yen Guo
IPC: H02M3/24
CPC classification number: H02M3/156 , H02M2001/0009
Abstract: In an adaptive leading-edge blanking circuit and method for a switching mode power converter, an inductor current of the converter is sensed and compared with a threshold to decide an end point of a leading-edge blanking time. Circuit and method are further provided for preventing the converter from entering pulse skipping mode, which employs a current trimming circuit in an oscillator for a PWM controller in the converter to reduce a charging current in the oscillator if the output voltage of the converter is excessively high, to thereby reduce the oscillator frequency and in turn lower the switching frequency of a high-side power switch of the converter.
Abstract translation: 在用于开关模式功率转换器的自适应前沿消隐电路和方法中，感测转换器的电感器电流并将其与阈值进行比较以决定前沿消隐时间的终点。 进一步提供电路和方法，用于防止转换器进入脉冲跳跃模式，其在转换器中的PWM控制器的振荡器中采用电流微调电路，以在转换器的输出电压过高时降低振荡器中的充电电流 ，从而降低振荡器频率，从而降低转换器的高侧功率开关的开关频率。
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Patent Agency Ranking
6.发明申请公开(公告)号：US20160218617A1
公开(公告)日：2016-07-28
申请号：US15092014
申请日：2016-04-06
Applicant: Chia-Wei Liao , Jing-Meng Liu
Inventor： Chia-Wei Liao , Jing-Meng Liu
CPC classification number: H02M1/42 , G05F3/262 , H02M1/08 , H02M1/126 , H02M1/4208 , H02M2001/0009 , Y02B70/126
Abstract: The present invention discloses a power supply circuit with power factor correction (PFC) function, and an automatic gain control circuit therefor and a control method thereof. The power supply circuit includes the automatic gain control circuit and a load driver circuit. The automatic gain control circuit converts an input voltage to a regulation voltage, and the load driver circuit generates an output current according to the regulation voltage. The automatic gain control circuit automatically adjust the regulation voltage such that the regulation voltage has a substantially fixed amplitude or fixed average value under different input voltages of different specifications, and the output current provided by the load driver circuit varies in phase with the input voltage to provide a PFC function.
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7.发明授权Active bleeder circuit triggering TRIAC in all phase and light emitting device power supply circuit and TRIAC control method using the active bleeder circuit 有权在所有相和发光器件电源电路中触发TRIAC的有源泄放电路和使用主动泄放电路的TRIAC控制方法公开(公告)号：US08884537B2
公开(公告)日：2014-11-11
申请号：US13728541
申请日：2012-12-27
Applicant: Chia-Wei Liao , Leng-Nien Hsiu , Pei-Yuan Chen , Roland Van Roy , Jing-Meng Liu
Inventor： Chia-Wei Liao , Leng-Nien Hsiu , Pei-Yuan Chen , Roland Van Roy , Jing-Meng Liu
CPC classification number: G05F1/455 , G05F1/10 , G05F3/02 , H05B33/0815 , H05B37/02 , Y02B20/346
Abstract: The present invention discloses an active bleeder circuit capable of triggering a tri-electrode AC switch (TRIAC) circuit in all phase. The active bleeder circuit receives a rectified signal having an OFF phase and an ON phase. The active bleeder includes: a detection circuit for generating a detection signal according to the rectified signal and accumulating the detection signal in the OFF phase of the rectified signal; and a current sinker circuit coupled to the detection circuit, for generates a latching current to trigger the TRIAC circuit by operating a switch when the detection signal exceeds a predetermined level. The present invention also discloses a light emitting device power supply circuit and a TRIAC control method using the active bleeder circuit.
Abstract translation: 本发明公开了一种能够全相触发三电极交流开关（TRIAC）电路的有源泄放电路。 有源泄放电路接收具有OFF相位和ON相位的整流信号。 有源放电器包括：检测电路，用于根据整流信号产生检测信号，并将检测信号累积在整流信号的OFF相位; 以及耦合到检测电路的电流沉降电路，用于当检测信号超过预定电平时，通过操作开关产生触发TRIAC电路的锁存电流。 本发明还公开了一种使用有源泄放电路的发光器件电源电路和TRIAC控制方法。
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8.发明授权公开(公告)号：US08710755B2
公开(公告)日：2014-04-29
申请号：US13421733
申请日：2012-03-15
Applicant: Pei-Yuan Chen , Chia-Wei Liao , Jing-Meng Liu , Leng-Nien Hsiu
Inventor： Pei-Yuan Chen , Chia-Wei Liao , Jing-Meng Liu , Leng-Nien Hsiu
IPC: H05B37/02
CPC classification number: H05B33/0815
Abstract: The present invention discloses a light emitting device power supply circuit, a light emitting device driver circuit and a control method thereof. The light emitting device driver circuit is coupled to a tri-electrode AC switch (TRIAC) dimmer circuit, and it controls the brightness of a light emitting device circuit according a rectified dimming signal. The light emitting device driver circuit includes a power stage circuit and a light emitting device control circuit. The light emitting device control circuit generates a switch control signal. The power stage circuit operates at least one power switch thereof according to the switch control signal to generate a latching current for firing the TRIAC dimmer circuit, and the latching current is inputted to the light emitting device circuit.
Abstract translation: 本发明公开了一种发光装置电源电路，发光装置驱动电路及其控制方法。 发光器件驱动电路耦合到三极交流开关（TRIAC）调光电路，并根据整流调光信号控制发光器件电路的亮度。 发光器件驱动电路包括功率级电路和发光器件控制电路。 发光装置控制电路产生开关控制信号。 功率级电路根据开关控制信号操作其至少一个电源开关，以产生用于触发TRIAC调光电路的锁存电流，并且将锁存电流输入到发光器件电路。
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公开(公告)号：US20130114308A1
公开(公告)日：2013-05-09
申请号：US13674824
申请日：2012-11-12
Applicant: Chia-Wei Liao , Jing-Meng Liu , Leng-Nien Hsiu , Pei-Yuan Chen
Inventor： Chia-Wei Liao , Jing-Meng Liu , Leng-Nien Hsiu , Pei-Yuan Chen
IPC: H02M3/335
CPC classification number: H02M3/33507 , H02M1/4258 , Y02B70/126
Abstract: The present invention discloses a switching regulator and a control circuit and a control method thereof. The control circuit of the switching regulator, which controls rectified power within a predetermined range, detects an input voltage and an input current to generate a voltage detection signal and a current detection signal respectively, and the voltage detection signal and the current detection signal are multiplied by one the other to generate a power index. The control circuit generates an error signal according to the power index and a reference signal. A low-pass-filter filters a high frequency band in the process. A control signal generation circuit of the control circuit generates a control signal according to the error signal. And a driver circuit of the control circuit generates an operation signal according to the control signal, for switching a power switch to convert the rectified power to an output voltage.
Abstract translation: 本发明公开了一种开关调节器及其控制电路及其控制方法。 开关调节器的控制电路，其控制在预定范围内的整流功率，检测输入电压和输入电流，分别产生电压检测信号和电流检测信号，并将电压检测信号和电流检测信号相乘 通过另一个来产生权力指数。 控制电路根据功率指标和参考信号产生误差信号。 低通滤波器过滤高频带。 控制电路的控制信号生成电路根据误差信号生成控制信号。 并且控制电路的驱动电路根据控制信号生成操作信号，用于切换电源开关以将整流功率转换为输出电压。
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公开(公告)号：US09287796B2
公开(公告)日：2016-03-15
申请号：US13765609
申请日：2013-02-12
Applicant: Chia-Wei Liao , Jing-Meng Liu
Inventor： Chia-Wei Liao , Jing-Meng Liu
CPC classification number: H02M5/40 , H02M3/33523 , H02M2001/0032 , Y02B70/16
Abstract: The present invention discloses an isolated power converter circuit and a control method thereof. The isolated power converter circuit includes: a transformer circuit, a power switch circuit, an opto-coupler circuit, and a control circuit. The transformer circuit includes a first winding and a second winding. The power switch circuit is coupled to the transformer circuit to control it according to a driving signal. The opto-coupler circuit generates a feedback signal. The control circuit is coupled to the power switch circuit and the opto-coupler circuit, for generating the driving signal according to the feedback signal. The control circuit includes a distinguishing circuit for distinguishing a status of the feedback signal.
Abstract translation: 本发明公开了一种隔离电力转换电路及其控制方法。 隔离电力转换器电路包括：变压器电路，电源开关电路，光耦合器电路和控制电路。 变压器电路包括第一绕组和第二绕组。 功率开关电路耦合到变压器电路，以根据驱动信号进行控制。 光耦合器电路产生反馈信号。 控制电路耦合到功率开关电路和光耦合器电路，用于根据反馈信号产生驱动信号。 控制电路包括用于区分反馈信号的状态的区别电路。
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