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1.发明申请ISOLATED VOLTAGE CONVERTER WITH FEEDBACK ON THE PRIMARY WINDING AND PASSIVE SNUBBER NETWORK, AND CORRESPONDING CONTROL METHOD 有权在主绕组和被动式SNUBBER网络上具有反馈的隔离电压转换器和相应的控制方法公开(公告)号：US20090147546A1
公开(公告)日：2009-06-11
申请号：US12324412
申请日：2008-11-26
CPC分类号： H02M3/33523 , H02M2001/0032 , Y02B70/16
摘要： An embodiment of a voltage converter, provided with: a voltage transformer having a primary winding receiving an input voltage, a secondary winding supplying an output voltage, and an auxiliary winding supplying a feedback voltage correlated to the output voltage; a main switch, connected to the primary winding; a control circuit, which controls switching of the main switch and has a sampling stage for sampling and holding the feedback voltage and supplying a sampled signal; and a voltage limiting circuit, provided with a clamp capacitor, designed to be connected across the primary winding. A sampling control stage is connected to the sampling stage, and is designed, during a given operating condition of the voltage converter, to enable updating of the sampled signal on the basis of a state of charge of the clamp capacitor.
摘要翻译： 一种电压转换器的实施例，其具有：具有接收输入电压的初级绕组的电压互感器，提供输出电压的次级绕组和提供与所述输出电压相关的反馈电压的辅助绕组; 主开关，连接到初级绕组; 控制电路，其控制主开关的切换，并具有用于采样和保持反馈电压并提供采样信号的采样级; 以及设置有钳位电容器的电压限制电路，被设计成跨过初级绕组连接。 采样控制级连接到采样级，并且在电压转换器的给定工作条件期间被设计为能够基于钳位电容器的充电状态来更新采样信号。
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公开(公告)号：US20110199794A1
公开(公告)日：2011-08-18
申请号：US13069728
申请日：2011-03-23
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M2001/0009
摘要： An embodiment of a power-supply controller comprises a switching-control circuit, an error amplifier, and a signal generator. The switching-control circuit is operable to control a switch coupled to a primary winding of a transformer, and the error amplifier has a first input node operable to receive a feedback signal, a second input node operable to receive a comparison signal, and an output node operable to provide a control signal to the switching-control circuit. The signal generator is operable to generate either the feedback signal or the comparison signal in response to a compensation signal that is isolated from a secondary winding of the transformer and that is proportional to a load current through a conductor disposed between the secondary winding and a load.
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3.发明申请METHOD FOR CONTROLLING A SWITCHING REGULATOR AND RELATED SWITCHING REGULATOR 有权用于控制开关稳压器和相关开关稳压器的方法公开(公告)号：US20100164443A1
公开(公告)日：2010-07-01
申请号：US12347889
申请日：2008-12-31
CPC分类号： H02M3/33507 , H02M2001/0009
摘要： An embodiment of a power-supply controller comprises a switching-control circuit, an error amplifier, and a signal generator. The switching-control circuit is operable to control a switch coupled to a primary winding of a transformer, and the error amplifier has a first input node operable to receive a feedback signal, a second input node operable to receive a comparison signal, and an output node operable to provide a control signal to the switching-control circuit. The signal generator is operable to generate either the feedback signal or the comparison signal in response to a compensation signal that is isolated from a secondary winding of the transformer and that is proportional to a load current through a conductor disposed between the secondary winding and a load.
摘要翻译： 电源控制器的实施例包括开关控制电路，误差放大器和信号发生器。 开关控制电路可操作以控制耦合到变压器的初级绕组的开关，并且误差放大器具有可操作以接收反馈信号的第一输入节点，可操作以接收比较信号的第二输入节点和输出端 节点，其可操作以向所述开关控制电路提供控制信号。 信号发生器可操作以响应于与变压器的次级绕组隔离的补偿信号而产生反馈信号或比较信号，并且与通过布置在次级绕组和负载之间的导体的负载电流成比例 。
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4.发明授权Isolated voltage converter with feedback on the primary winding and passive snubber network, and corresponding control method 有权在初级绕组和无源缓冲网络上具有反馈的隔离电压转换器及相应的控制方法公开(公告)号：US08270184B2
公开(公告)日：2012-09-18
申请号：US12324412
申请日：2008-11-26
IPC分类号： H02M3/335
CPC分类号： H02M3/33523 , H02M2001/0032 , Y02B70/16
摘要： An embodiment of a voltage converter, provided with: a voltage transformer having a primary winding receiving an input voltage, a secondary winding supplying an output voltage, and an auxiliary winding supplying a feedback voltage correlated to the output voltage; a main switch, coupled to the primary winding; a control circuit, which controls switching of the main switch and has a sampling stage for sampling and holding the feedback voltage and supplying a sampled signal; and a voltage limiting circuit, provided with a clamp capacitor, designed to be coupled across the primary winding. A sampling control stage is coupled to the sampling stage, and is designed, during a given operating condition of the voltage converter, to enable updating of the sampled signal on the basis of a state of charge of the clamp capacitor.
摘要翻译： 一种电压转换器的实施例，其具有：具有接收输入电压的初级绕组的电压互感器，提供输出电压的次级绕组和提供与所述输出电压相关的反馈电压的辅助绕组; 主开关，耦合到初级绕组; 控制电路，其控制主开关的切换，并具有用于采样和保持反馈电压并提供采样信号的采样级; 以及设置有钳位电容器的电压限制电路，设计成跨过初级绕组耦合。 采样控制级耦合到采样级，并且在电压转换器的给定操作条件期间被设计为能够基于钳位电容器的充电状态来更新采样信号。
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公开(公告)号：US08248826B2
公开(公告)日：2012-08-21
申请号：US13069724
申请日：2011-03-23
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M2001/0009
摘要： An embodiment of a power-supply controller comprises a switching-control circuit, an error amplifier, and a signal generator. The switching-control circuit is operable to control a switch coupled to a primary winding of a transformer, and the error amplifier has a first input node operable to receive a feedback signal, a second input node operable to receive a comparison signal, and an output node operable to provide a control signal to the switching-control circuit. The signal generator is operable to generate either the feedback signal or the comparison signal in response to a compensation signal that is isolated from a secondary winding of the transformer and that is proportional to a load current through a conductor disposed between the secondary winding and a load.
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6.发明申请METHOD FOR CONTROLLING A SWITCHING REGULATOR AND RELATED SWITCHING REGULATOR 有权用于控制开关稳压器和相关开关稳压器的方法公开(公告)号：US20110170319A1
公开(公告)日：2011-07-14
申请号：US13069724
申请日：2011-03-23
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M2001/0009
摘要： An embodiment of a power-supply controller comprises a switching-control circuit, an error amplifier, and a signal generator. The switching-control circuit is operable to control a switch coupled to a primary winding of a transformer, and the error amplifier has a first input node operable to receive a feedback signal, a second input node operable to receive a comparison signal, and an output node operable to provide a control signal to the switching-control circuit. The signal generator is operable to generate either the feedback signal or the comparison signal in response to a compensation signal that is isolated from a secondary winding of the transformer and that is proportional to a load current through a conductor disposed between the secondary winding and a load.
摘要翻译： 电源控制器的实施例包括开关控制电路，误差放大器和信号发生器。 开关控制电路可操作以控制耦合到变压器的初级绕组的开关，并且误差放大器具有可操作以接收反馈信号的第一输入节点，可操作以接收比较信号的第二输入节点和输出端 节点，其可操作以向所述开关控制电路提供控制信号。 信号发生器可操作以响应于与变压器的次级绕组隔离的补偿信号而产生反馈信号或比较信号，并且与通过布置在次级绕组和负载之间的导体的负载电流成比例 。
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7.发明授权Method for controlling a switching regulator and related switching regulator 有权用于控制开关稳压器和相关开关稳压器的方法公开(公告)号：US08194420B2
公开(公告)日：2012-06-05
申请号：US13069728
申请日：2011-03-23
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M2001/0009
摘要： An embodiment of a power-supply controller comprises a switching-control circuit, an error amplifier, and a signal generator. The switching-control circuit is operable to control a switch coupled to a primary winding of a transformer, and the error amplifier has a first input node operable to receive a feedback signal, a second input node operable to receive a comparison signal, and an output node operable to provide a control signal to the switching-control circuit. The signal generator is operable to generate either the feedback signal or the comparison signal in response to a compensation signal that is isolated from a secondary winding of the transformer and that is proportional to a load current through a conductor disposed between the secondary winding and a load.
摘要翻译： 电源控制器的实施例包括开关控制电路，误差放大器和信号发生器。 开关控制电路可操作以控制耦合到变压器的初级绕组的开关，并且误差放大器具有可操作以接收反馈信号的第一输入节点，可操作以接收比较信号的第二输入节点和输出端 节点，其可操作以向所述开关控制电路提供控制信号。 信号发生器可操作以响应于与变压器的次级绕组隔离的补偿信号而产生反馈信号或比较信号，并且与通过布置在次级绕组和负载之间的导体的负载电流成比例 。
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公开(公告)号：US08179699B2
公开(公告)日：2012-05-15
申请号：US12347889
申请日：2008-12-31
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M2001/0009
摘要： An embodiment of a power-supply controller comprises a switching-control circuit, an error amplifier, and a signal generator. The switching-control circuit is operable to control a switch coupled to a primary winding of a transformer, and the error amplifier has a first input node operable to receive a feedback signal, a second input node operable to receive a comparison signal, and an output node operable to provide a control signal to the switching-control circuit. The signal generator is operable to generate either the feedback signal or the comparison signal in response to a compensation signal that is isolated from a secondary winding of the transformer and that is proportional to a load current through a conductor disposed between the secondary winding and a load.
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