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1. 发明授权

US07847533B2 Apparatus providing protection for power converter 有权
标题翻译：提供功率转换器保护的装置
公开(公告)号：US07847533B2
公开(公告)日：2010-12-07
申请号：US12550397
申请日：2009-08-30
申请人： Ta-Yung Yang , Chien-Yuan Lin , Tso-Min Chen
发明人： Ta-Yung Yang , Chien-Yuan Lin , Tso-Min Chen
IPC分类号： G05F1/40
CPC分类号： H02M1/32 , H02M3/33507
摘要： A switching circuit for a power converter includes an oscillation circuit, a first circuit, and a first comparator. The oscillation circuit generates a switching signal for regulating an output of the power converter. The first circuit generates a threshold signal. The first comparator is coupled to receive a signal representative of a current through a power switch. Besides, the first comparator generates a control signal in response to the signal and the threshold signal. A frequency of the switching signal is increased in response to the enabling of the control signal.
摘要翻译：用于功率转换器的开关电路包括振荡电路，第一电路和第一比较器。振荡电路产生用于调节功率转换器的输出的开关信号。第一电路产生阈值信号。第一比较器被耦合以接收表示通过电源开关的电流的信号。此外，第一比较器响应于信号和阈值信号产生控制信号。响应于控制信号的使能，开关信号的频率增加。

2. 发明申请

US20090316451A1 APPARATUS PROVIDING PROTECTION FOR POWER CONVERTER 有权
标题翻译：提供电源转换器的设备保护
公开(公告)号：US20090316451A1
公开(公告)日：2009-12-24
申请号：US12550397
申请日：2009-08-30
申请人： Ta-Yung Yang , Chien-Yuan Lin , Tso-Min Chen
发明人： Ta-Yung Yang , Chien-Yuan Lin , Tso-Min Chen
IPC分类号： H02H7/10 , H02M1/00
CPC分类号： H02M1/32 , H02M3/33507
摘要： A switching circuit for a power converter includes an oscillation circuit, a first circuit, and a first comparator. The oscillation circuit generates a switching signal for regulating an output of the power converter. The first circuit generates a threshold signal. The first comparator is coupled to receive a signal representative of a current through a power switch. Besides, the first comparator generates a control signal in response to the signal and the threshold signal. A frequency of the switching signal is increased in response to the enabling of the control signal.
摘要翻译：用于功率转换器的开关电路包括振荡电路，第一电路和第一比较器。振荡电路产生用于调节功率转换器的输出的开关信号。第一电路产生阈值信号。第一比较器被耦合以接收表示通过电源开关的电流的信号。此外，第一比较器响应于信号和阈值信号产生控制信号。响应于控制信号的使能，开关信号的频率增加。

3. 发明申请

US20070109820A1 Power converter having phase lock circuit for quasi-resonant soft switching 有权
标题翻译：具有用于准谐振软开关的锁相电路的功率转换器
公开(公告)号：US20070109820A1
公开(公告)日：2007-05-17
申请号：US11274125
申请日：2005-11-16
申请人： Ta-Yung Yang , Rui-Hong Lu , Chuh-Ching Li , Feng-Cheng Tsao , Tso-Min Chen
发明人： Ta-Yung Yang , Rui-Hong Lu , Chuh-Ching Li , Feng-Cheng Tsao , Tso-Min Chen
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , Y02B70/1433
摘要： The present invention provides a power converter having a phase lock circuit for quasi-resonant soft switching. The power converter includes a first circuit coupled to the feedback signal to generate a switching signal for switching a switching device and regulating the output of the power converter. A second circuit is coupled to an auxiliary winding of the transformer for generating a voltage signal in response to the voltage of the transformer. A phase lock circuit generates a control signal to enable the switching signal in accordance with the voltage signal. The switching signal further turns on the switching device in response to a valley voltage across the switching device.
摘要翻译：本发明提供一种具有用于准谐振软开关的锁相电路的功率转换器。功率转换器包括耦合到反馈信号的第一电路以产生用于切换开关装置并调节功率转换器的输出的开关信号。第二电路耦合到变压器的辅助绕组，以响应于变压器的电压产生电压信号。锁相电路根据电压信号产生控制信号以使能切换信号。开关信号进一步响应于开关器件上的谷值电压而导通开关器件。

4. 发明授权

US07466569B2 Power converter having phase lock circuit for quasi-resonant soft switching 有权
标题翻译：具有用于准谐振软开关的锁相电路的功率转换器
公开(公告)号：US07466569B2
公开(公告)日：2008-12-16
申请号：US11274125
申请日：2005-11-16
申请人： Ta-Yung Yang , Rui-Hong Lu , Chuh-Ching Li , Feng-Cheng Tsao , Tso-Min Chen
发明人： Ta-Yung Yang , Rui-Hong Lu , Chuh-Ching Li , Feng-Cheng Tsao , Tso-Min Chen
IPC分类号： H02M3/335 , G05F1/40
CPC分类号： H02M3/33507 , Y02B70/1433
摘要： The present invention provides a power converter having a phase lock circuit for quasi-resonant soft switching. The power converter includes a first circuit coupled to the feedback signal to generate a switching signal for switching a switching device and regulating the output of the power converter. A second circuit is coupled to an auxiliary winding of the transformer for generating a voltage signal in response to the voltage of the transformer. A phase lock circuit generates a control signal to enable the switching signal in accordance with the voltage signal. The switching signal further turns on the switching device in response to a valley voltage across the switching device.
摘要翻译：本发明提供一种具有用于准谐振软开关的锁相电路的功率转换器。功率转换器包括耦合到反馈信号的第一电路以产生用于切换开关装置并调节功率转换器的输出的开关信号。第二电路耦合到变压器的辅助绕组，以响应于变压器的电压产生电压信号。锁相电路根据电压信号产生控制信号以使能切换信号。开关信号进一步响应于开关器件上的谷值电压而导通开关器件。

5. 发明授权

US07570087B2 Switching drive circuit for soft switching 有权
标题翻译：开关驱动电路用于软开关
公开(公告)号：US07570087B2
公开(公告)日：2009-08-04
申请号：US11723989
申请日：2007-03-23
申请人： Ta-Yung Yang , Tso-Min Chen
发明人： Ta-Yung Yang , Tso-Min Chen
IPC分类号： H03K3/00
CPC分类号： H02M1/38 , H02M2001/0048 , H03K17/163 , H03K17/284 , Y02B70/1491
摘要： A switching drive circuit for soft switching is disclosed. It includes an input circuit to receive an input signal. A first delay circuit generates a first delay time in response to the enable of the input signal. A second delay circuit generates a second delay time in response to the disable of the input signal. A switching signal generator generates switching signals. The pulse width of the high-side switching signal is generated in proportion to the pulse width of the input signal. The high-side switching signal enabled after the first delay time once the input signal is enabled. The low-side switching signal disabled in response to the enable of the input signal. The low-side switching signal is enabled after the second delay time once the high-side switching signal is disabled.
摘要翻译：公开了一种用于软开关的开关驱动电路。它包括一个接收输入信号的输入电路。第一延迟电路响应于输入信号的使能而产生第一延迟时间。第二延迟电路响应于输入信号的禁用而产生第二延迟时间。开关信号发生器产生开关信号。高侧开关信号的脉冲宽度与输入信号的脉冲宽度成比例地生成。一旦输入信号使能，高侧开关信号在第一个延迟时间后使能。低端开关信号响应于输入信号的使能而被禁止。一旦高侧开关信号被禁止，低侧开关信号在第二延迟时间之后使能。

6. 发明授权

US07656685B2 Control method and circuit with indirect input voltage detection by switching current slope detection 有权
标题翻译：通过开关电流斜率检测进行间接输入电压检测的控制方法和电路
公开(公告)号：US07656685B2
公开(公告)日：2010-02-02
申请号：US11652571
申请日：2007-01-12
申请人： Ta-Yung Yang , Chien-Yuan Lin
发明人： Ta-Yung Yang , Chien-Yuan Lin
IPC分类号： H02M3/335
CPC分类号： G01R19/0084 , G01R15/144
摘要： The present invention provides a method and circuit for detecting an input voltage of a power converter. It includes a current sense circuit for generating a current signal in response to a switching current of an inductive device. A detection circuit is coupled to sense the current signal for generating a slope signal in response to a slope of the current signal. A signal generation circuit is further developed to generate an input-voltage signal in accordance with the slope signal. The level of the input-voltage signal is corrected to the input voltage of the power converter.
摘要翻译：本发明提供一种用于检测功率转换器的输入电压的方法和电路。它包括用于响应于感应装置的开关电流产生电流信号的电流感测电路。耦合检测电路以感测电流信号，以响应于当前信号的斜率产生斜率信号。进一步开发信号发生电路以根据斜率信号产生输入电压信号。输入电压信号的电平被校正为功率转换器的输入电压。

7. 发明申请

US20110062877A1 OFFLINE LED LIGHTING CIRCUIT WITH DIMMING CONTROL 有权
标题翻译：离线LED照明电路，带调光控制
公开(公告)号：US20110062877A1
公开(公告)日：2011-03-17
申请号：US12769728
申请日：2010-04-29
申请人： Ta-Yung Yang , Chien-Yuan Lin , Chien-Tung Lan
发明人： Ta-Yung Yang , Chien-Yuan Lin , Chien-Tung Lan
IPC分类号： H05B37/02
CPC分类号： H05B33/0845
摘要： An offline LED lighting circuit comprises a controller and a dimming circuit. The controller generates a switching signal to switch a transformer for generating an output voltage and an output current at an output terminal of the offline LED lighting circuit to drive LEDs. The dimming circuit is coupled to the controller to modulate the switching signal in response to a dimming signal. A first reference voltage and a second reference voltage of the controller are generated in response to the dimming signal. The switching signal is modulated by the first reference voltage and the second reference voltage. The controller regulates the output voltage at a first output level and a second output level in response to both the first reference voltage and the second reference voltage. The second output level is lower than the first output level.
摘要翻译：离线LED照明电路包括控制器和调光电路。控制器产生切换信号以切换变压器，以在离线LED照明电路的输出端产生输出电压和输出电流，以驱动LED。调光电路耦合到控制器以响应于调光信号来调制开关信号。响应于调光信号产生控制器的第一参考电压和第二参考电压。开关信号由第一参考电压和第二参考电压调制。控制器响应于第一参考电压和第二参考电压来调节处于第一输出电平的输出电压和第二输出电平。第二个输出电平低于第一个输出电平。

8. 发明授权

US08269432B2 Offline LED lighting circuit with dimming control 有权
标题翻译：离线LED照明电路，具有调光控制
公开(公告)号：US08269432B2
公开(公告)日：2012-09-18
申请号：US12769728
申请日：2010-04-29
申请人： Ta-Yung Yang , Chien-Yuan Lin , Chien-Tung Lan
发明人： Ta-Yung Yang , Chien-Yuan Lin , Chien-Tung Lan
IPC分类号： G05F1/00
CPC分类号： H05B33/0845
摘要： An offline LED lighting circuit comprises a controller and a dimming circuit. The controller generates a switching signal to switch a transformer for generating an output voltage and an output current at an output terminal of the offline LED lighting circuit to drive LEDs. The dimming circuit is coupled to the controller to modulate the switching signal in response to a dimming signal. A first reference voltage and a second reference voltage of the controller are generated in response to the dimming signal. The switching signal is modulated by the first reference voltage and the second reference voltage. The controller regulates the output voltage at a first output level and a second output level in response to both the first reference voltage and the second reference voltage. The second output level is lower than the first output level.
摘要翻译：离线LED照明电路包括控制器和调光电路。控制器产生切换信号以切换变压器，以在离线LED照明电路的输出端产生输出电压和输出电流，以驱动LED。调光电路耦合到控制器以响应于调光信号来调制开关信号。响应于调光信号产生控制器的第一参考电压和第二参考电压。开关信号由第一参考电压和第二参考电压调制。控制器响应于第一参考电压和第二参考电压来调节处于第一输出电平的输出电压和第二输出电平。第二个输出电平低于第一个输出电平。

9. 再颁专利

USRE42674E1 Control method and circuit with indirect input voltage detection by switching current slope detection 有权
标题翻译：通过开关电流斜率检测进行间接输入电压检测的控制方法和电路
公开(公告)号：USRE42674E1
公开(公告)日：2011-09-06
申请号：US12850122
申请日：2010-08-04
申请人： Ta-Yung Yang , Chien-Yuan Lin
发明人： Ta-Yung Yang , Chien-Yuan Lin
IPC分类号： H02H7/122
CPC分类号： H02M1/32
摘要： The present invention provides a method and a control circuit to detect an input voltage for the control and protections of a power converter. It includes a current sense circuit for generating a current signal in response to a switching current of a transformer. A detection circuit is coupled to sense the current signal for generating a slope signal in response to a slope of the current signal. A protection circuit is further developed to control the switching signal in accordance with the slope signal. The level of the slope signal is corrected correlated to the input voltage of the power converter.
摘要翻译：本发明提供一种检测用于电力转换器的控制和保护的输入电压的方法和控制电路。其包括用于响应于变压器的开关电流产生电流信号的电流感测电路。耦合检测电路以感测电流信号，以响应于当前信号的斜率产生斜率信号。进一步开发保护电路以根据斜率信号来控制开关信号。斜坡信号的电平与功率转换器的输入电压相关。

10. 发明申请

US20080170420A1 Method and control circuit with input voltage detection for the control and protection of power converter 有权
标题翻译：用于控制和保护功率转换器的输入电压检测方法和控制电路
公开(公告)号：US20080170420A1
公开(公告)日：2008-07-17
申请号：US11652578
申请日：2007-01-12
申请人： Ta-Yung Yang , Chien-Yuan Lin
发明人： Ta-Yung Yang , Chien-Yuan Lin
IPC分类号： H02H7/10 , H02M1/08
CPC分类号： H02M1/32
摘要： The present invention provides a method and a control circuit to detect an input voltage for the control and protections of a power converter. It includes a current sense circuit for generating a current signal in response to a switching current of a transformer. A detection circuit is coupled to sense the current signal for generating a slope signal in response to a slope of the current signal. A protection circuit is further developed to control the switching signal in accordance with the slope signal. The level of the slope signal is corrected to the input voltage of the power converter.
摘要翻译：本发明提供一种检测用于电力转换器的控制和保护的输入电压的方法和控制电路。其包括用于响应于变压器的开关电流产生电流信号的电流感测电路。耦合检测电路以感测电流信号，以响应于当前信号的斜率产生斜率信号。进一步开发保护电路以根据斜率信号来控制开关信号。斜坡信号的电平被校正为功率转换器的输入电压。

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