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1. 发明申请

US20080025054A1 METHOD AND APPARATUS PROVIDING PROTECTION FOR POWER CONVERTER 有权
标题翻译：提供功率转换器的方法和装置保护
公开(公告)号：US20080025054A1
公开(公告)日：2008-01-31
申请号：US11461405
申请日：2006-07-31
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： H02H7/122
CPC分类号： H02M1/32 , H02M3/33507
摘要： The invention presents a surge output protection for a control circuit of power converter. It comprises an input circuit for generating a threshold signal. A first comparator is coupled to receive a signal representative the current through a power switch. The first comparator further generates a control signal in response to the signal and the threshold signal. A timer circuit is utilized to generate a time-out signal in response to the control signal. The time-out signal is coupled to turn off the power switch.
摘要翻译：本发明为功率转换器的控制电路提供浪涌输出保护。它包括用于产生阈值信号的输入电路。第一比较器被耦合以接收代表通过电源开关的电流的信号。第一比较器还响应于信号和阈值信号产生控制信号。使用定时器电路来响应于控制信号产生超时信号。超时信号被耦合以关闭电源开关。

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. 发明授权

US07602160B2 Method and apparatus providing protection for power converter 有权
标题翻译：为功率转换器提供保护的方法和装置
公开(公告)号：US07602160B2
公开(公告)日：2009-10-13
申请号：US11461405
申请日：2006-07-31
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： The invention presents a surge output protection for a control circuit of power converter. It comprises an input circuit for generating a threshold signal. A first comparator is coupled to receive a signal representative the current through a power switch. The first comparator further generates a control signal in response to the signal and the threshold signal. A timer circuit is utilized to generate a time-out signal in response to the control signal. The time-out signal is coupled to turn off the power switch.
摘要翻译：本发明为功率转换器的控制电路提供浪涌输出保护。它包括用于产生阈值信号的输入电路。第一比较器被耦合以接收代表通过电源开关的电流的信号。第一比较器还响应于信号和阈值信号产生控制信号。使用定时器电路来响应于控制信号产生超时信号。超时信号被耦合以关闭电源开关。

4. 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。

5. 发明授权

US07701733B2 Method and apparatus to provide synchronous rectifying circuit for offline power converters 有权
标题翻译：为离线电源转换器提供同步整流电路的方法和装置
公开(公告)号：US07701733B2
公开(公告)日：2010-04-20
申请号：US11763171
申请日：2007-06-14
申请人： Ta-yung Yang , Tso-Min Chen
发明人： Ta-yung Yang , Tso-Min Chen
IPC分类号： H02M3/335
CPC分类号： H02M1/08 , H03K17/28 , H03K17/74 , H03K17/80
摘要： A synchronous rectifying circuit is provided for power converter. A pulse signal generator is utilized to generate a pulse signal in response to the leading edge and the trailing edge of a switching signal. The switching signal is used for switching the transformer of the power converter. An isolation device such as pulse transformer or small capacitors is coupled to the pulse signal generator for transferring the pulse signal through an isolation barrier of a transformer. A synchronous rectifier includes a power switch and a control circuit. The power switch is equipped in between the secondary side of the transformer and the output of the power converter for the rectifying. The control circuit having a latch is operated to receive the pulse signal for turning on/off the power switch.
摘要翻译：为功率转换器提供同步整流电路。脉冲信号发生器用于响应于开关信号的前沿和后沿产生脉冲信号。开关信号用于切换电源转换器的变压器。诸如脉冲变压器或小电容器的隔离装置被耦合到脉冲信号发生器，用于通过变压器的隔离栅传递脉冲信号。同步整流器包括电源开关和控制电路。电源开关配置在变压器的次级侧和电源转换器的输出端之间进行整流。具有闩锁的控制电路被操作以接收用于打开/关闭电源开关的脉冲信号。

6. 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。

7. 发明授权

US07974108B2 Synchronous rectifying circuit for offline power converter 有权
标题翻译：用于离线功率转换器的同步整流电路
公开(公告)号：US07974108B2
公开(公告)日：2011-07-05
申请号：US11927619
申请日：2007-10-29
申请人： Ta-yung Yang , Tso-Min Chen
发明人： Ta-yung Yang , Tso-Min Chen
IPC分类号： H02M3/335 , H02M5/42
CPC分类号： H02M3/33592 , Y02B70/1475
摘要： A synchronous rectifying circuit is provided for power converter. An integrated synchronous rectifier has a rectifying terminal, a ground terminal a first input terminal and a second input terminal. The rectifying terminal is coupled to secondary side of a transformer. The ground terminal coupled to output of the power converter. A power transistor is connected between the rectifying terminal and the ground terminal. The first input terminal and the second input terminal are coupled to receive a pulse signal for turning on/off the power transistor. A pulse-signal generation circuit includes an input terminal coupled to receive the switching signal for switching the transformer of the power converter. A first output terminal and a second output terminal of the pulse-signal generation circuit generate the pulse signal. An isolation device is coupled between the first input terminal and the second input terminal, and the first output terminal and the second output terminal.
摘要翻译：为功率转换器提供同步整流电路。集成式同步整流器具有整流端子，接地端子，第一输入端子和第二输入端子。整流端子耦合到变压器的次级侧。接地端子耦合到功率转换器的输出端。功率晶体管连接在整流端子和接地端子之间。第一输入端子和第二输入端子被耦合以接收用于接通/关断功率晶体管的脉冲信号。脉冲信号生成电路包括被耦合以接收用于切换功率转换器的变压器的开关信号的输入端子。脉冲信号发生电路的第一输出端子和第二输出端子产生脉冲信号。隔离装置耦合在第一输入端和第二输入端之间，第一输出端和第二输出端。

8. 发明授权

US07701736B2 Synchronous rectifying circuit for resonant power converters 有权
标题翻译：谐振电源转换器同步整流电路
公开(公告)号：US07701736B2
公开(公告)日：2010-04-20
申请号：US11835807
申请日：2007-08-08
申请人： Ta-yung Yang , Tso-Min Chen
发明人： Ta-yung Yang , Tso-Min Chen
IPC分类号： H02M7/04
CPC分类号： H02M3/33592 , H02M2001/0058 , Y02B70/1433 , Y02B70/1475 , Y02B70/1491
摘要： A synchronous rectifying circuit is provided for resonant power converter. An integrated synchronous rectifier comprises a rectifying terminal, a ground terminal a first input terminal and a second input terminal. The rectifying terminal is coupled to the secondary side of a power transformer. The ground terminal is coupled to the output of the power converter. A power transistor is connected between the rectifying terminal and the ground terminal. The first input terminal and the second input terminal are coupled to receive a pulse signal for turning on/off the power transistor. A pulse-signal generation circuit includes an input circuit coupled to receive the switching signal for switching the power transformer of the power converter.
摘要翻译：为谐振功率转换器提供同步整流电路。集成同步整流器包括整流端子，接地端子，第一输入端子和第二输入端子。整流端子耦合到电力变压器的次级侧。接地端子耦合到功率转换器的输出端。功率晶体管连接在整流端子和接地端子之间。第一输入端子和第二输入端子被耦合以接收用于接通/关断功率晶体管的脉冲信号。脉冲信号发生电路包括耦合以接收切换信号的输入电路，用于切换功率转换器的电力变压器。

9. 发明申请

US20090110129A1 SYNCHRONOUS RECTIFYING CIRCUIT FOR OFFLINE POWER CONVERTER 有权
标题翻译：用于离线电源转换器的同步整流电路
公开(公告)号：US20090110129A1
公开(公告)日：2009-04-30
申请号：US11927619
申请日：2007-10-29
申请人： Ta-yung Yang , Tso-Min Chen
发明人： Ta-yung Yang , Tso-Min Chen
IPC分类号： H04L7/00
CPC分类号： H02M3/33592 , Y02B70/1475
摘要： A synchronous rectifying circuit is provided for power converter. An integrated synchronous rectifier has a rectifying terminal, a ground terminal a first input terminal and a second input terminal. The rectifying terminal is coupled to secondary side of a transformer. The ground terminal coupled to output of the power converter. A power transistor is connected between the rectifying terminal and the ground terminal. The first input terminal and the second input terminal are coupled to receive a pulse signal for turning on/off the power transistor. A pulse-signal generation circuit includes an input terminal coupled to receive the switching signal for switching the transformer of the power converter. A first output terminal and a second output terminal of the pulse-signal generation circuit generate the pulse signal. An isolation device is coupled between the first input terminal and the second input terminal, and the first output terminal and the second output terminal.
摘要翻译：为功率转换器提供同步整流电路。集成式同步整流器具有整流端子，接地端子，第一输入端子和第二输入端子。整流端子耦合到变压器的次级侧。接地端子耦合到功率转换器的输出端。功率晶体管连接在整流端子和接地端子之间。第一输入端子和第二输入端子被耦合以接收用于接通/关断功率晶体管的脉冲信号。脉冲信号生成电路包括被耦合以接收用于切换功率转换器的变压器的开关信号的输入端子。脉冲信号发生电路的第一输出端子和第二输出端子产生脉冲信号。隔离装置耦合在第一输入端和第二输入端之间，第一输出端和第二输出端。

10. 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。

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