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1. 发明授权

US08625313B2 High-side synchronous rectifier circuits and control circuits for power converters 有权
标题翻译：高侧同步整流电路和电源转换器控制电路
公开(公告)号：US08625313B2
公开(公告)日：2014-01-07
申请号：US13112414
申请日：2011-05-20
申请人： Chia-Yo Yeh , Jhih-Da Hsu , Ying-Chieh Su , Chien-Chun Huang , Chou-Sheng Wang
发明人： Chia-Yo Yeh , Jhih-Da Hsu , Ying-Chieh Su , Chien-Chun Huang , Chou-Sheng Wang
IPC分类号： H02M3/335
CPC分类号： H02M1/083 , H02M1/44 , H02M3/33592 , H02M2001/0048 , Y02B70/1475 , Y02B70/1491
摘要： A control circuit for a switching power converter is provided. The control circuit is installed between a secondary side and an output of the power converter and coupled to control a switching device. The control circuit includes a linear predict circuit, a reset circuit, a charge/discharge circuit, and a PWM circuit. The linear predict circuit is coupled to receive a linear predict signal from the secondary side for generating a charging signal. The reset circuit is couple to receive a resetting signal for generating a discharging signal. The charge/discharge circuit is coupled to receive the charging signal and the discharging signal for generating a ramp signal. The PWM circuit is coupled to receive the linear predict signal for enabling a switching signal and receive the ramp signal for resetting the switching signal.
摘要翻译：提供了一种用于开关电源转换器的控制电路。控制电路安装在功率转换器的次级侧和输出端之间，并耦合以控制开关装置。控制电路包括线性预测电路，复位电路，充电/放电电路和PWM电路。线性预测电路被耦合以从次级侧接收用于产生充电信号的线性预测信号。复位电路耦合以接收用于产生放电信号的复位信号。充电/放电电路被耦合以接收充电信号和用于产生斜坡信号的放电信号。 PWM电路被耦合以接收用于启用切换信号的线性预测信号并且接收斜坡信号以复位开关信号。

2. 发明申请

US20120033460A1 High-Side Synchronous Rectifier Circuits and Control Circuits for Power Converters 有权
标题翻译：高边同步整流电路和电源转换器的控制电路
公开(公告)号：US20120033460A1
公开(公告)日：2012-02-09
申请号：US13112414
申请日：2011-05-20
申请人： Chia-Yo Yeh , Jhih-Da Hsu , Ying-Chieh Su , Chien-Chun Huang , Chou-Sheng Wang
发明人： Chia-Yo Yeh , Jhih-Da Hsu , Ying-Chieh Su , Chien-Chun Huang , Chou-Sheng Wang
IPC分类号： H02M3/335
CPC分类号： H02M1/083 , H02M1/44 , H02M3/33592 , H02M2001/0048 , Y02B70/1475 , Y02B70/1491
摘要： A control circuit for a switching power converter is provided. The control circuit is installed between a secondary side and an output of the power converter and coupled to control a switching device. The control circuit includes a linear predict circuit, a reset circuit, a charge/discharge circuit, and a PWM circuit. The linear predict circuit is coupled to receive a linear predict signal from the secondary side for generating a charging signal. The reset circuit is couple to receive a resetting signal for generating a discharging signal. The charge/discharge circuit is coupled to receive the charging signal and the discharging signal for generating a ramp signal. The PWM circuit is coupled to receive the linear predict signal for enabling a switching signal and receive the ramp signal for resetting the switching signal.
摘要翻译：提供了一种用于开关电源转换器的控制电路。控制电路安装在功率转换器的次级侧和输出端之间，并耦合以控制开关装置。控制电路包括线性预测电路，复位电路，充电/放电电路和PWM电路。线性预测电路被耦合以从次级侧接收用于产生充电信号的线性预测信号。复位电路耦合以接收用于产生放电信号的复位信号。充电/放电电路被耦合以接收充电信号和用于产生斜坡信号的放电信号。 PWM电路被耦合以接收用于启用切换信号的线性预测信号并且接收斜坡信号以复位开关信号。

3. 发明授权

US08542507B2 Adaptive synchronous rectification control method and apparatus 有权
标题翻译：自适应同步整流控制方法及装置
公开(公告)号：US08542507B2
公开(公告)日：2013-09-24
申请号：US13069534
申请日：2011-03-23
申请人： Jhih-Da Hsu , Chia-Yo Yeh , Chou-Sheng Wang , Ying-Chieh Su , Rui-Hong Lu
发明人： Jhih-Da Hsu , Chia-Yo Yeh , Chou-Sheng Wang , Ying-Chieh Su , Rui-Hong Lu
IPC分类号： H02H7/125 , H02M3/335
CPC分类号： H02M3/33592 , Y02B70/1475
摘要： An adaptive synchronous rectification control circuit and a control method are developed. The control circuit comprises an adaptive circuit that generates a reference signal in response to a detection signal of a power converter. A clamped circuit clamps the reference signal at a threshold voltage if the reference signal equals or is greater than the threshold voltage. A switching circuit generates a control signal to control a synchronous switch of the power converter in response to the detection signal and the reference signal. The control method generates the reference signal in response to the detection signal. The reference signal is clamped at the threshold voltage if the reference signal equals or is greater than the threshold voltage. The method further generates the control signal to control the synchronous switch of the power converter in response to the detection signal and the reference signal.
摘要翻译：开发了自适应同步整流控制电路和控制方法。控制电路包括响应于功率转换器的检测信号产生参考信号的自适应电路。如果参考信号等于或大于阈值电压，钳位电路将参考信号钳位在阈值电压。切换电路响应于检测信号和参考信号产生控制信号以控制功率转换器的同步开关。控制方法响应于检测信号产生参考信号。如果参考信号等于或大于阈值电压，则参考信号被钳位在阈值电压。该方法还响应于检测信号和参考信号产生控制信号以控制功率转换器的同步开关。

4. 发明授权

US09379622B2 Power converter and method for controlling power converter 有权
标题翻译：电源转换器及电源转换器控制方法
公开(公告)号：US09379622B2
公开(公告)日：2016-06-28
申请号：US13934242
申请日：2013-07-03
申请人： Chou-Sheng Wang , Chia-Yo Yeh , Rui-Hong Lu , Jhih-Da Hsu , Ying-Chieh Su
发明人： Chou-Sheng Wang , Chia-Yo Yeh , Rui-Hong Lu , Jhih-Da Hsu , Ying-Chieh Su
IPC分类号： H02M3/335
CPC分类号： H02M3/33515 , H02M3/33507 , H02M3/33592 , Y02B70/1475
摘要： A control circuit and a method for controlling a power converter are provided. The method for controlling the power converter includes the following steps. A detection signal is received from the secondary side of the power transformer and a first switching signal is generated in accordance with the detection signal. A second switching signal is generated in accordance with the first switching signal. A voltage signal is generated in accordance with the second switching signal. A comparison signal is generated in accordance with the first switching signal and the second switching signal. The voltage signal and the comparison signal are compared for outputting a comparison result. A gate signal is generated in accordance with the detection signal and the comparison result to control on and off states of a synchronization switch.
摘要翻译：提供了一种用于控制功率转换器的控制电路和方法。用于控制功率转换器的方法包括以下步骤。从电力变压器的次级侧接收检测信号，根据检测信号产生第一切换信号。根据第一切换信号产生第二切换信号。根据第二开关信号产生电压信号。根据第一开关信号和第二开关信号产生比较信号。比较电压信号和比较信号以输出比较结果。根据检测信号和比较结果生成门信号，以控制同步开关的接通和断开状态。

5. 发明申请

US20140009976A1 CONTROL CIRCUIT AND METHOD FOR CONTROLLING POWER CONVERTER 有权
标题翻译：控制电路和控制电源转换器的方法
公开(公告)号：US20140009976A1
公开(公告)日：2014-01-09
申请号：US13934242
申请日：2013-07-03
申请人： Chou-Sheng Wang , Chia-Yo Yeh , Rui-Hong Lu , Jhih-Da Hsu , Ying-Chieh Su
发明人： Chou-Sheng Wang , Chia-Yo Yeh , Rui-Hong Lu , Jhih-Da Hsu , Ying-Chieh Su
IPC分类号： H02M3/335
CPC分类号： H02M3/33515 , H02M3/33507 , H02M3/33592 , Y02B70/1475
摘要： A control circuit and a method for controlling a power converter are provided. The method for controlling the power converter includes the following steps. A detection signal is received from the secondary side of the power transformer and a first switching signal is generated in accordance with the detection signal. A second switching signal is generated in accordance with the first switching signal. A voltage signal is generated in accordance with the second switching signal. A comparison signal is generated in accordance with the first switching signal and the second switching signal. The voltage signal and the comparison signal are compared for outputting a comparison result. A gate signal is generated in accordance with the detection signal and the comparison result to control on and off states of a synchronization switch.
摘要翻译：提供了一种用于控制功率转换器的控制电路和方法。用于控制功率转换器的方法包括以下步骤。从电力变压器的次级侧接收检测信号，根据检测信号产生第一切换信号。根据第一切换信号产生第二切换信号。根据第二开关信号产生电压信号。根据第一开关信号和第二开关信号产生比较信号。比较电压信号和比较信号以输出比较结果。根据检测信号和比较结果生成门信号，以控制同步开关的接通和断开状态。

6. 发明申请

US20110305053A1 Switching Control Circuits with Valley Lock for Power Converters 有权
标题翻译：用于电源转换器的谷锁开关控制电路
公开(公告)号：US20110305053A1
公开(公告)日：2011-12-15
申请号：US12962948
申请日：2010-12-08
申请人： Chao-Chih Lin , Ying-Chieh Su , Jhih-Da Hsu , Chia-Yo Yeh , Wei-Ting Wang
发明人： Chao-Chih Lin , Ying-Chieh Su , Jhih-Da Hsu , Chia-Yo Yeh , Wei-Ting Wang
IPC分类号： H02M7/44
CPC分类号： H02M1/44 , H02M3/33523 , H02M2001/0048 , Y02B70/1491
摘要： A switching control circuit for a switching power converter is provided. The switching control circuit is coupled to a switching device and an auxiliary winding of a transformer. The switching control circuit includes a valley detecting circuit, a valley lock circuit, and a PWM circuit. The valley detecting circuit is coupled to receive a reflected voltage signal from the auxiliary winding of the transformer for outputting a control signal in response to the reflected voltage signal. The valley lock circuit is coupled to receive the control signal for outputting a judging signal in response to the control signal during a first period and a second period following the first period. The PWM circuit outputs a switching signal in response to the judging signal.
摘要翻译：提供了一种用于开关电源转换器的开关控制电路。开关控制电路耦合到变压器的开关装置和辅助绕组。开关控制电路包括谷值检测电路，谷值锁定电路和PWM电路。谷检测电路被耦合以接收来自变压器的辅助绕组的反射电压信号，以响应于反射电压信号输出控制信号。谷锁电路被耦合以接收控制信号，用于在第一周期和第一周期之后的第一周期期间响应于控制信号输出判断信号。 PWM电路响应判断信号输出开关信号。

7. 发明授权

US08482937B2 Switching control circuits with valley lock for power converters 有权
标题翻译：用于电源转换器的带有谷锁的开关控制电路
公开(公告)号：US08482937B2
公开(公告)日：2013-07-09
申请号：US12962948
申请日：2010-12-08
申请人： Chao-Chih Lin , Ying-Chieh Su , Jhih-Da Hsu , Chia-Yo Yeh , Wei-Ting Wang
发明人： Chao-Chih Lin , Ying-Chieh Su , Jhih-Da Hsu , Chia-Yo Yeh , Wei-Ting Wang
IPC分类号： H02M3/335
CPC分类号： H02M1/44 , H02M3/33523 , H02M2001/0048 , Y02B70/1491
摘要： A switching control circuit for a switching power converter is provided. The switching control circuit is coupled to a switching device and an auxiliary winding of a transformer. The switching control circuit includes a valley detecting circuit, a valley lock circuit, and a PWM circuit. The valley detecting circuit is coupled to receive a reflected voltage signal from the auxiliary winding of the transformer for outputting a control signal in response to the reflected voltage signal. The valley lock circuit is coupled to receive the control signal for outputting a judging signal in response to the control signal during a first period and a second period following the first period. The PWM circuit outputs a switching signal in response to the judging signal.
摘要翻译：提供了一种用于开关电源转换器的开关控制电路。开关控制电路耦合到变压器的开关装置和辅助绕组。开关控制电路包括谷值检测电路，谷值锁定电路和PWM电路。谷检测电路被耦合以接收来自变压器的辅助绕组的反射电压信号，以响应于反射电压信号输出控制信号。谷锁电路被耦合以接收控制信号，用于在第一周期和第一周期之后的第一周期期间响应于控制信号输出判断信号。 PWM电路响应判断信号输出开关信号。

8. 发明授权

US08023289B2 Offline synchronous rectifier with causal circuit for resonant switching power converter 有权
标题翻译：用于谐振开关电源转换器的离线同步整流器
公开(公告)号：US08023289B2
公开(公告)日：2011-09-20
申请号：US12275174
申请日：2008-11-20
申请人： Ta-Yung Yang , Ying-Chieh Su , Chou-Sheng Wang , Tien-Chi Lin , Jhih-Da Hsu
发明人： Ta-Yung Yang , Ying-Chieh Su , Chou-Sheng Wang , Tien-Chi Lin , Jhih-Da Hsu
IPC分类号： H02M3/335 , H02M5/42
CPC分类号： H02M3/33592 , H02M2001/0058 , Y02B70/1433 , Y02B70/1475 , Y02B70/1491
摘要： A synchronous rectifier of a resonant switching power converter is provided to improve efficiency. The synchronous rectifier includes a power transistor and a diode connected to a transformer and an output of the resonant switching power converter for ratifications. A controller generates a drive signal to control the power transistor in response to an on signal and an off signal. A causal circuit is developed to generate the off signal in accordance with the on signal. The on signal is enabled once the diode is forward biased. The on signal is coupled to enable the drive signal for switching on the power transistor. The off signal is coupled to disable the drive signal for switching off the power transistor. The off signal is enabled before the on signal is disabled.
摘要翻译：提供谐振开关电源转换器的同步整流器以提高效率。同步整流器包括功率晶体管和连接到变压器的二极管以及用于批准的谐振开关功率转换器的输出。控制器响应于导通信号和关闭信号产生驱动信号以控制功率晶体管。开发因果电路以根据导通信号产生关断信号。二极管正向偏置后，导通信号使能。接通信号被耦合以使驱动信号能够接通功率晶体管。关断信号被耦合以禁用用于关断功率晶体管的驱动信号。关闭信号在禁用接通信号之前被使能。

9. 发明申请

US20100124079A1 OFFLINE SYNCHRONOUS RECTIFIER WITH CAUSAL CIRCUIT FOR RESONANT SWITCHING POWER CONVERTER 有权
标题翻译：用于谐振开关电源转换器的离线同步整流器
公开(公告)号：US20100124079A1
公开(公告)日：2010-05-20
申请号：US12275174
申请日：2008-11-20
申请人： Ta-Yung Yang , Ying-Chieh Su , Chou-Sheng Wang , Tien-Chi Lin , Jhih-Da Hsu
发明人： Ta-Yung Yang , Ying-Chieh Su , Chou-Sheng Wang , Tien-Chi Lin , Jhih-Da Hsu
IPC分类号： H02M3/335
CPC分类号： H02M3/33592 , H02M2001/0058 , Y02B70/1433 , Y02B70/1475 , Y02B70/1491
摘要： A synchronous rectifier of a resonant switching power converter is provided to improve efficiency. The synchronous rectifier includes a power transistor and a diode connected to a transformer and an output of the resonant switching power converter for ratifications. A controller generates a drive signal to control the power transistor in response to an on signal and an off signal. A causal circuit is developed to generate the off signal in accordance with the on signal. The on signal is enabled once the diode is forward biased. The on signal is coupled to enable the drive signal for switching on the power transistor. The off signal is coupled to disable the drive signal for switching off the power transistor. The off signal is enabled before the on signal is disabled.
摘要翻译：提供谐振开关电源转换器的同步整流器以提高效率。同步整流器包括功率晶体管和连接到变压器的二极管以及用于批准的谐振开关功率转换器的输出。控制器响应于导通信号和关闭信号产生驱动信号以控制功率晶体管。开发因果电路以根据导通信号产生关断信号。二极管正向偏置后，导通信号使能。接通信号被耦合以使驱动信号能够接通功率晶体管。关断信号被耦合以禁用用于关断功率晶体管的驱动信号。关闭信号在禁用接通信号之前被使能。

10. 发明申请

US20100232182A1 DUAL-SWITCHES FLYBACK POWER CONVERTER WITH SELF-EXCITED SUPPLY TO POWER THE HIGH-SIDE DRIVER 有权
标题翻译：双开关逆变电源转换器，自供电供电高边驱动器
公开(公告)号：US20100232182A1
公开(公告)日：2010-09-16
申请号：US12624565
申请日：2009-11-24
申请人： Ta-Yung Yang , Ying-Chieh Su , Jhih-Da Hsu
发明人： Ta-Yung Yang , Ying-Chieh Su , Jhih-Da Hsu
IPC分类号： H02M3/335
CPC分类号： H02M3/33569 , H02M2001/0006
摘要： An exemplary embodiment of a flyback power converter includes a transformer for power transfer, a high-side transistor, a low-side transistor, two diodes, a control circuit, and a high-side drive circuit. The high-side transistor and the low-side transistor are coupled to switch the transformer. The two diodes are coupled to said transformer to circulate energy of leakage inductance of the transformer to an input power rail of the power converter. The control circuit generates a switching signal coupled to control the high-side transistor and the low-side transistor. The high-side drive circuit is coupled to receive the switching signal for driving the high-side transistor. The transformer has an auxiliary winding generating a floating power to provide power supply for said high-side drive circuit.
摘要翻译：反激式功率转换器的示例性实施例包括用于功率传输的变压器，高侧晶体管，低侧晶体管，两个二极管，控制电路和高侧驱动电路。高侧晶体管和低侧晶体管被耦合以切换变压器。两个二极管耦合到所述变压器，以将变压器的漏电感的能量循环到功率转换器的输入电源轨。控制电路产生耦合以控制高侧晶体管和低侧晶体管的开关信号。高侧驱动电路被耦合以接收用于驱动高侧晶体管的开关信号。变压器具有产生浮动功率的辅助绕组，以为所述高侧驱动电路提供电源。

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