发明名称 Primary-side control of a switching power converter with feed forward delay compensation
摘要 An electronic system includes controller to control a switching power converter to provide power to a load. To control the amount of power provided to the load, in at least one embodiment, the controller senses a current value representing a current in the switching power converter and detects when the current value reaches a target peak value. However, due to delays in the controller and/or the switching power converter, the detected target peak value will not be the actual current peak value generated by the switching power converter. In at least one embodiment, the controller adjusts the detected target peak value with a post-detection delay compensation factor to generate a delay compensated current value that more accurately represents an actual peak current value associated with the current in the switching power converter.
申请公布号 US9351356(B2) 申请公布日期 2016.05.24
申请号 US201213486947 申请日期 2012.06.01
申请人 KONINKLIJKE PHILIPS N.V. 发明人 He Zhaohui;Grisamore Robert T.;Kost Michael A.
分类号 H05B33/08 主分类号 H05B33/08
代理机构 代理人
主权项 1. A method comprising: (a) sensing a value of a current in a switching power converter during a switching cycle of the switching power converter; (b) detecting a target peak value of the current value; (c) adjusting the detected target peak value of the current value with a post-detection delay compensation factor to generate a delay compensated current value; (d) determining an amount of current provided to a load coupled to the switching power converter based on the delay compensated current value; and (e) generating a switch control signal to control the value of the current in the switching power converter to provide energy to the load in accordance with the delay compensated current value.
地址 Eindhoven NL