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1. 发明申请

US20190222138A1 FORWARD FED BOOST CONVERTER FOR FLYBACK SWITCHED MODE POWER SUPPLY AND METHOD THEREOF 审中-公开
公开(公告)号：US20190222138A1
公开(公告)日：2019-07-18
申请号：US15873412
申请日：2018-01-17
申请人： NXP B.V.
发明人： Joan Wichard STRIJKER
IPC分类号： H02M7/06 , H02M1/36 , H02J7/02
CPC分类号： H02M7/068 , H02J7/022 , H02M1/08 , H02M1/36 , H02M3/33523 , H02M3/33553 , H02M3/33592 , H02M7/064 , H02M2001/0006 , H02M2001/0054
摘要： Various embodiments relate to a flyback type SMPS including a primary side controller on a primary side, a first switch on the primary side and a transformer including a primary side winding on the primary side, a secondary side winding on a secondary side and an auxiliary winding on the primary side connected to a first switching regulator wherein the first switching regulator is supplied during a primary stroke from the auxiliary winding when the first switch is on.

2. 发明申请

US20210313977A1 SWITCHED-MODE POWER SUPPLY CONTROLLER AND METHOD FOR OPERATING A SWITCHED-MODE POWER SUPPLY CONTROLLER 有权
公开(公告)号：US20210313977A1
公开(公告)日：2021-10-07
申请号：US16841533
申请日：2020-04-06
申请人： NXP B.V.
发明人： Joan Wichard STRIJKER
IPC分类号： H03K17/0812 , H02M3/158 , H02M3/335 , H02M1/08 , H02M1/32 , H03K17/16
摘要： Embodiments of an SMPS controller and a method for operating a switched-mode power supply (SMPS) controller are described. In an embodiment, an SMPS controller includes a gate driver circuit configured to generate a drive signal for a switch of an SMPS and a current sense electrical terminal configured to receive sensed current corresponding to the switch and to conduct driver discharge current from the gate driver circuit.

3. 发明申请

US20140016373A1 CONTROL CIRCUIT FOR A SWITCHED-MODE POWER SUPPLY 有权
标题翻译：用于开关电源的控制电路
公开(公告)号：US20140016373A1
公开(公告)日：2014-01-16
申请号：US13921922
申请日：2013-06-19
申请人： NXP B.V.
发明人： Cheng ZHANG , Joan Wichard STRIJKER , Hans HALBERSTADT
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M3/33523
摘要： A control circuit for a switched-mode power supply having an input side (101) connectable to an electrical power source and an output side (102) connectable to a load. The control circuit comprises: a primary control circuit (140) adapted to generate a driving signal for a switching element (110) at the input side of the power supply; a secondary control circuit (150) adapted to monitor an output signal at the output side (102) of the power supply; and an opto-coupler (300, 400), wherein the opto-coupler is arranged to receive its input from the secondary control circuit and to provide a control signal to the primary control circuit, and the primary control circuit comprises a compensation circuit (900, 1000, 1100, 1400, 2010, 2610) adapted to process the control signal to generate a compensation signal for reducing power consumption in the opto-coupler, wherein the compensation circuit is adapted to generate the compensation signal such that a current in the opto-coupler tends to return to a desired minimum value.
摘要翻译：一种用于开关电源的控制电路，具有可连接到电源的输入侧（101）和可连接到负载的输出侧（102）。所述控制电路包括：主控制电路（140），其适于在所述电源的输入侧产生用于所述开关元件（110）的驱动信号; 辅助控制电路（150），其适于监测所述电源的输出侧（102）处的输出信号; 以及光耦合器（300,400），其中所述光耦合器被布置为从所述次级控制电路接收其输入并向所述主控制电路提供控制信号，并且所述主控制电路包括补偿电路（900 ，1000,1100,1400,2010,21010），其适于处理所述控制信号以产生用于降低所述光耦合器中的功率消耗的补偿信号，其中所述补偿电路适于产生所述补偿信号，使得所述光电耦合器中的电流 - 耦合器往往返回到所需的最小值。

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