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1. 发明申请

US20110317454A1 DUAL SWITCHES FLYBACK POWER CONVERTER WITH WIDE INPUT VOLTAGE RANGE 有权
标题翻译：双开关逆变电源转换器，带宽输入电压范围
公开(公告)号：US20110317454A1
公开(公告)日：2011-12-29
申请号：US13099595
申请日：2011-05-03
申请人： CHAO-CHIH LIN , TA-YUNG YANG , YING-CHIEH SU
发明人： CHAO-CHIH LIN , TA-YUNG YANG , YING-CHIEH SU
IPC分类号： H02M3/335
CPC分类号： H02M3/3353
摘要： A dual switches Flyback power converter with a wide input voltage range according to the present invention comprises an input diode and an energy-store capacitor. The input diode can prevent the reflected voltage from the power transformer of the power converter to charge the electrolytic capacitor of the power converter. The energy-store capacitor will store the reflected voltage and the energy of the leakage inductor of the power transformer. The energy stored in the energy-store capacitor will be recycled to the output voltage of the power converter. Further, the input diode can be replaced by an input transistor to prevent the reflected voltage from the power transformer to charge the electrolytic capacitor.
摘要翻译：根据本发明的具有宽输入电压范围的双重开关反激式功率转换器包括输入二极管和能量存储电容器。输入二极管可以防止功率转换器的电源变压器的反射电压对功率转换器的电解电容器充电。储能电容将存储电力变压器的漏电感的反射电压和能量。存储在储能电容器中的能量将被再循环到功率转换器的输出电压。此外，输入二极管可以由输入晶体管代替，以防止来自电力变压器的反射电压对电解电容器充电。

2. 发明申请

US20110305048A1 ACTIVE-CLAMP CIRCUIT FOR QUASI-RESONANT FLYBACK POWER CONVERTER 审中-公开
标题翻译：用于准谐振电源转换器的主动钳位电路
公开(公告)号：US20110305048A1
公开(公告)日：2011-12-15
申请号：US13086588
申请日：2011-04-14
申请人： TA-YUNG YANG , YING-CHIEH SU , CHAO-CHIH LIN
发明人： TA-YUNG YANG , YING-CHIEH SU , CHAO-CHIH LIN
IPC分类号： H02M3/335
CPC分类号： H02M1/083 , H02M3/33507 , H02M2001/0006 , H02M2001/342 , Y02B70/1433 , Y02B70/1491
摘要： An active clamp circuit for a QR flyback power converter according to the present invention comprises an active-clamper connected to a primary winding of a power transformer of the QR flyback power converter in parallel. A high-side transistor driver is coupled to drive the active-damper. A charge-pump circuit is coupled to the high-side transistor driver to provide a power supply to the high-side transistor driver in accordance with a voltage source. A control circuit generates a control signal coupled to control the high-side transistor driver. The control signal is generated in response to a PWM signal and an input voltage of the QR flyback power converter.
摘要翻译：根据本发明的用于QR反激式功率转换器的有源钳位电路包括并联连接到QR反激式功率转换器的电力变压器的初级绕组的有源钳位器。高侧晶体管驱动器被耦合以驱动主动阻尼器。电荷泵电路耦合到高侧晶体管驱动器，以根据电压源向高侧晶体管驱动器提供电源。控制电路产生耦合以控制高侧晶体管驱动器的控制信号。响应于PWM信号和QR反激式功率转换器的输入电压产生控制信号。

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