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1. 发明授权

US08866512B2 Feedback terminal of power converter having programming function for parameter setting 有权
标题翻译：功率转换器的反馈端子具有参数设置的编程功能
公开(公告)号：US08866512B2
公开(公告)日：2014-10-21
申请号：US13217827
申请日：2011-08-25
申请人： Ta-yung Yang , Yen-Ting Chen , Tien-Chi Lin , Kai-Fang Wei
发明人： Ta-yung Yang , Yen-Ting Chen , Tien-Chi Lin , Kai-Fang Wei
IPC分类号： H03K5/00 , H02M3/156 , H02M1/00
CPC分类号： H02M3/156 , H02M2001/0025
摘要： 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.
摘要翻译：根据本发明的功率转换器的控制电路包括开关电路，采样保持电路和电流源。开关电路响应于反馈信号产生开关信号。采样和保持电路对反馈信号进行采样。电流源耦合到用于产生编程电压的反馈端子。根据编程电压和反馈信号产生可编程信号，并且可编程信号被耦合以设置参数。

2. 发明授权

US08659916B2 Control circuit with ZVS-lock and asymmetrical PWM for resonant power converter 有权
标题翻译：用于谐振功率转换器的具有ZVS锁定和不对称PWM的控制电路
公开(公告)号：US08659916B2
公开(公告)日：2014-02-25
申请号：US13478252
申请日：2012-05-23
申请人： Ta-Yung Yang , Tien-Chi Lin
发明人： Ta-Yung Yang , Tien-Chi Lin
IPC分类号： H02M3/335
CPC分类号： H02M3/3376 , H02M2001/0058 , Y02B70/1433 , Y02B70/1491
摘要： 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.
摘要翻译：公开了一种用于谐振功率转换器的控制电路及其控制方法。控制电路包括第一晶体管和第二晶体管，通过谐振槽切换变压器。控制器接收用于产生第一开关信号的反馈信号和耦合以分别驱动第一晶体管和第二晶体管的第二开关信号。反馈信号与谐振功率转换器的输出相关。二极管耦合到第二晶体管，用于检测用于控制器的第二晶体管的状态。第一开关信号和第二开关信号被调制以实现用于第二晶体管的零电压开关（ZVS）。

3. 发明授权

US08654546B2 Method and apparatus for controlling resonant power converter 有权
标题翻译：用于控制谐振功率转换器的方法和装置
公开(公告)号：US08654546B2
公开(公告)日：2014-02-18
申请号：US13425422
申请日：2012-03-21
申请人： Tien-Chi Lin , Hang-Seok Choi , Ta-Yung Yang
发明人： Tien-Chi Lin , Hang-Seok Choi , Ta-Yung Yang
IPC分类号： H02M3/335
CPC分类号： H02M3/3376 , H02M2001/0058 , Y02B70/1433 , Y02B70/1491
摘要： 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.
摘要翻译：公开了一种谐振功率转换器的控制电路。控制电路包括用于切换变压器的第一晶体管和第二晶体管以及包括电容器和电感器的谐振槽。控制器被配置为接收与功率转换器的输出相关的反馈信号，用于产生第一开关信号和第二开关信号以分别驱动第一晶体管和第二晶体管。耦合到第一晶体管和谐振槽的二极管，用于检测第一晶体管的状态并产生用于控制器的检测信号。检测信号指示晶体管是否处于零电压切换（ZVS）状态。如果晶体管不处于ZVS状态，晶体管的开关频率将会增加。

4. 发明申请

US20120281434A1 METHOD AND APPARATUS FOR CONTROLLING RESONANT POWER CONVERTER 有权
标题翻译：用于控制谐波功率转换器的方法和装置
公开(公告)号：US20120281434A1
公开(公告)日：2012-11-08
申请号：US13425422
申请日：2012-03-21
申请人： Tien-Chi Lin , Hang-Seok Choi , Ta-Yung Yang
发明人： Tien-Chi Lin , Hang-Seok Choi , Ta-Yung Yang
IPC分类号： H02M3/335
CPC分类号： H02M3/3376 , H02M2001/0058 , Y02B70/1433 , Y02B70/1491
摘要： 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.
摘要翻译：公开了一种谐振功率转换器的控制电路。控制电路包括用于切换变压器的第一晶体管和第二晶体管以及包括电容器和电感器的谐振槽。控制器被配置为接收与功率转换器的输出相关的反馈信号，用于产生第一开关信号和第二开关信号以分别驱动第一晶体管和第二晶体管。耦合到第一晶体管和谐振槽的二极管，用于检测第一晶体管的状态并产生用于控制器的检测信号。检测信号指示晶体管是否处于零电压切换（ZVS）状态。如果晶体管不处于ZVS状态，晶体管的开关频率将会增加。

5. 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。

6. 发明申请

US20120212202A1 FEEDBACK TERMINAL OF POWER CONVERTER HAVING PROGRAMMING FUNCTION FOR PARAMETER SETTING 有权
标题翻译：具有编程功能的功率转换器的反馈终端参数设置
公开(公告)号：US20120212202A1
公开(公告)日：2012-08-23
申请号：US13217827
申请日：2011-08-25
申请人： Ta-yung Yang , Yen-Ting Chen , Tien-Chi Lin , Kai-Fang Wei
发明人： Ta-yung Yang , Yen-Ting Chen , Tien-Chi Lin , Kai-Fang Wei
IPC分类号： G05F1/10
CPC分类号： H02M3/156 , H02M2001/0025
摘要： 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.
摘要翻译：根据本发明的功率转换器的控制电路包括开关电路，采样保持电路和电流源。开关电路响应于反馈信号产生开关信号。采样和保持电路对反馈信号进行采样。电流源耦合到用于产生编程电压的反馈端子。根据编程电压和反馈信号产生可编程信号，并且可编程信号被耦合以设置参数。

7. 发明授权

US07990739B2 Asymmetrical resonant power converters 有权
标题翻译：非对称谐振电源转换器
公开(公告)号：US07990739B2
公开(公告)日：2011-08-02
申请号：US12545971
申请日：2009-08-24
申请人： Ta-Yung Yang , Ying-Chieh Su , Tien-Chi Lin , Shih-Hung Hsieh
发明人： Ta-Yung Yang , Ying-Chieh Su , Tien-Chi Lin , Shih-Hung Hsieh
IPC分类号： H02M3/335
CPC分类号： H02M3/33523 , H02M3/3376 , Y02B70/1433
摘要： A resonant power converter is provided and includes a capacitor, an inductive device, a first transistor, a second transistor, and a control circuit. The capacitor and the inductive device develop a resonant tank. The first transistor and the second transistor are coupled to switch the resonant tank. The control circuit generates a first signal and a second signal to control the first transistor and the second transistor respectively. Frequencies of the first signal and the second signal are changed for regulating output of the resonant power converter. The control circuit is further coupled to detect an input voltage of the resonant power converter. A pulse width of the second signal is modulated in response to change of the input voltage.
摘要翻译：提供了一种谐振功率转换器，其包括电容器，电感器件，第一晶体管，第二晶体管和控制电路。电容器和感应器件开发一个谐振槽。第一晶体管和第二晶体管耦合以切换谐振槽。控制电路分别产生第一信号和第二信号以控制第一晶体管和第二晶体管。改变第一信号和第二信号的频率以调节谐振功率转换器的输出。控制电路还被耦合以检测谐振功率转换器的输入电压。响应于输入电压的变化来调制第二信号的脉冲宽度。

8. 发明申请

US20100202162A1 ASYMMETRICAL RESONANT POWER CONVERTERS 有权
标题翻译：不对称谐振电源转换器
公开(公告)号：US20100202162A1
公开(公告)日：2010-08-12
申请号：US12545971
申请日：2009-08-24
申请人： Ta-Yung Yang , Ying-Chieh Su , Tien-Chi Lin , Shih-Hung Hsieh
发明人： Ta-Yung Yang , Ying-Chieh Su , Tien-Chi Lin , Shih-Hung Hsieh
IPC分类号： H02M3/335
CPC分类号： H02M3/33523 , H02M3/3376 , Y02B70/1433
摘要： A resonant power converter is provided and includes a capacitor, an inductive device, a first transistor, a second transistor, and a control circuit. The capacitor and the inductive device develop a resonant tank. The first transistor and the second transistor are coupled to switch the resonant tank. The control circuit generates a first signal and a second signal to control the first transistor and the second transistor respectively. Frequencies of the first signal and the second signal are changed for regulating output of the resonant power converter. The control circuit is further coupled to detect an input voltage of the resonant power converter. A pulse width of the second signal is modulated in response to change of the input voltage.
摘要翻译：提供了一种谐振功率转换器，其包括电容器，电感器件，第一晶体管，第二晶体管和控制电路。电容器和感应器件开发一个谐振槽。第一晶体管和第二晶体管耦合以切换谐振槽。控制电路分别产生第一信号和第二信号以控制第一晶体管和第二晶体管。改变第一信号和第二信号的频率以调节谐振功率转换器的输出。控制电路还被耦合以检测谐振功率转换器的输入电压。响应于输入电压的变化来调制第二信号的脉冲宽度。

9. 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。

10. 发明申请

US20110292702A1 METHOD AND APPARATUS TO IMPROVE DYNAMIC RESPONSE OF THE SYNCHRONOUS RECTIFYING FOR RESONANT POWER CONVERTERS 有权
标题翻译：改善谐振电源同步整流动态响应的方法与装置
公开(公告)号：US20110292702A1
公开(公告)日：2011-12-01
申请号：US12786742
申请日：2010-05-25
申请人： Tien-Chi Lin , Ying-Chieh Su , Chou-Sheng Wang
发明人： Tien-Chi Lin , Ying-Chieh Su , Chou-Sheng Wang
IPC分类号： H02M7/12 , H02M7/06
CPC分类号： H02M3/33592 , Y02B70/1433 , Y02B70/1475
摘要： A synchronous rectifying circuit for a switching power converter is provided. The synchronous rectifying circuit includes a power transistor, a diode, and a control circuit. The power transistor and the diode are coupled to a transformer and an output of the power converter for rectification. The control circuit generates a drive signal to switch on the power transistor once the diode is forward biased. The control circuit includes a monitor circuit. The monitor circuit generates a monitor signal an off signal to switch off the power transistor in response to a pulse width of the drive signal for generating an off signal to switch off the power transistor. The monitor circuit further reduces the pulse width of the drive signal in response to a change of a feedback signal. The feedback signal is correlated to an output load of the power converter.
摘要翻译：提供了一种用于开关电源转换器的同步整流电路。同步整流电路包括功率晶体管，二极管和控制电路。功率晶体管和二极管耦合到变压器和用于整流的功率转换器的输出端。一旦二极管正向偏置，控制电路产生驱动信号来接通功率晶体管。控制电路包括监控电路。监视器电路产生监视信号关闭信号，以响应用于产生截止信号以关断功率晶体管的驱动信号的脉冲宽度来关闭功率晶体管。响应于反馈信号的改变，监视电路进一步减小驱动信号的脉冲宽度。反馈信号与功率转换器的输出负载相关。

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