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1. 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。

2. 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。

3. 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。

4. 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。

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。

7. 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）。

8. 发明授权

US09093918B2 Control circuit for offline power converter without input capacitor 有权
标题翻译：无输入电容的离线电源转换器的控制电路
公开(公告)号：US09093918B2
公开(公告)日：2015-07-28
申请号：US13604339
申请日：2012-09-05
申请人： Ta-Yung Yang , Chih-Hsien Hsieh , Jung-Sheng Chen
发明人： Ta-Yung Yang , Chih-Hsien Hsieh , Jung-Sheng Chen
IPC分类号： H02M1/42 , H02M3/335
CPC分类号： H02M1/4258 , H02M3/33507 , Y02B70/126
摘要： The present invention provides a control circuit for a power converter. The control circuit includes a switching circuit, an input-voltage detection circuit and a current-limit threshold. The switching circuit generates a switching signal coupled to switch a transformer of the power converter for regulating an output of the power converter in response to a feedback signal. The input-voltage detection circuit generates a control signal when an input voltage of the power converter is lower than a low-input threshold. The feedback signal is generated in response to the output of the power converter. A maximum duty of the switching signal is increased in response to the control signal. The current-limit threshold is for limiting a maximum value of a switching current flowing through the transformer. The current-limit threshold is increased in response to the control signal. An input of the power converter doesn't connect with electrolytic bulk capacitors.
摘要翻译：本发明提供了一种用于功率转换器的控制电路。控制电路包括开关电路，输入电压检测电路和限流阈值。开关电路产生耦合以切换功率转换器的变压器的开关信号，用于响应于反馈信号调节功率转换器的输出。当电力转换器的输入电压低于低输入阈值时，输入电压检测电路产生控制信号。响应于功率转换器的输出产生反馈信号。开关信号的最大占空比响应于控制信号而增加。限流阈值用于限制流过变压器的开关电流的最大值。响应于控制信号增加限流阈值。电源转换器的输入不与电解大容量电容器连接。

9. 发明申请

US20130329464A1 DIGITAL POWER CONTROL CIRCUIT FOR POWER CONVERTER AND CONTROL CIRCUIT FOR POWER CONVERTER 审中-公开
标题翻译：用于电力转换器的电源转换器和控制电路的数字功率控制电路
公开(公告)号：US20130329464A1
公开(公告)日：2013-12-12
申请号：US13900561
申请日：2013-05-23
申请人： Ta-Yung Yang , Pei-Sheng Tsu , Yi-Min Hsu , Chung-Hui Yeh
发明人： Ta-Yung Yang , Pei-Sheng Tsu , Yi-Min Hsu , Chung-Hui Yeh
IPC分类号： H02M3/335
CPC分类号： H02M3/33515 , H02M3/33592 , Y02B70/1475
摘要： A control circuit for a power converter and a digital power control circuit for a power converter are provided. The control circuit comprises a microcontroller, an oscillation circuit, an analog-to-digital converter and a signal generator. The microcontroller comprises a flash memory. The oscillation circuit comprises a phase lock loop for generating a clock signal. The analog-to-digital converter generates a digital feedback signal for the microcontroller corresponding to an output of the power converter. The signal generator is configured to receive the clock signal and data of the microcontroller for generating a switching signal. The switching signal is configured to switch a transformer for regulating the output of the power converter corresponding to the output of the microcontroller.
摘要翻译：提供了一种用于功率转换器的控制电路和用于功率转换器的数字功率控制电路。控制电路包括微控制器，振荡电路，模数转换器和信号发生器。微控制器包括闪存。振荡电路包括用于产生时钟信号的锁相环。模数转换器产生对应于功率转换器的输出的微控制器的数字反馈信号。信号发生器被配置为接收用于产生开关信号的微控制器的时钟信号和数据。开关信号被配置为切换用于调节对应于微控制器的输出的功率转换器的输出的变压器。

10. 发明授权

US08576595B2 Method and apparatus of providing a biased current limit for limiting maximum output power of power converters 有权
标题翻译：提供用于限制功率转换器的最大输出功率的偏置电流限制的方法和装置
公开(公告)号：US08576595B2
公开(公告)日：2013-11-05
申请号：US13237957
申请日：2011-09-21
申请人： Shao-Chun Huang , Chien-Tsun Hsu , Jian-Ming Fu , Wei-Hsuan Huang , Ta-Yung Yang
发明人： Shao-Chun Huang , Chien-Tsun Hsu , Jian-Ming Fu , Wei-Hsuan Huang , Ta-Yung Yang
IPC分类号： H02M3/24
CPC分类号： H02M3/33507
摘要： A biased current-limit circuit for limiting a maximum output power of a power converter includes an oscillator for generating a pulse signal and an oscillation signal. A waveform generator generates a waveform signal in response to the oscillation signal. A sample-hold circuit is used to sample the waveform signal to generate a hold signal in response to a switching signal. The sample-hold circuit further samples the hold signal to generate a current-limit threshold in response to a second-sampling signal. A current comparator is utilized to compare a current-sensing signal with the current-limit threshold to limit a maximum on-time of the switching signal.
摘要翻译：用于限制功率转换器的最大输出功率的偏置限流电路包括用于产生脉冲信号和振荡信号的振荡器。波形发生器响应于振荡信号产生波形信号。采样保持电路用于对波形信号进行采样以产生响应于开关信号的保持信号。采样保持电路还对保持信号采样，以响应于第二采样信号产生限流阈值。利用电流比较器将电流感测信号与限流阈值进行比较，以限制开关信号的最大导通时间。

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