专利名称：PFWM CONTROL SYSTEM FOR SWITCHED-MODE POWER SUPPLY CIRCUIT
发明人：LI, Renhong，李韧红,SHEN, Zhuo，沈卓
申请号：CN2019/083638
申请日：20190422
公开号：WO2019/206068A1
公开日：
20191031
专利内容由知识产权出版社提供
专利附图：
摘要：The prent invention provides a PFWM control system for a switched-mode power supply circuit, for controlling an output voltage, an output current, or an output power of the switched-mode power supply. The PFWM control system for the switched-
mode power supply circuit compris a duty cycle control unit, a frequency control unit, and a PFWM signal generation module. The switched-mode power supply circuit compris a boost conversion circuit and a DC-DC converter. The duty cycle control unit samples an output voltage, an output current, or an output power of the DC-DC converter, and calculates a duty cycle of a switch device of the switched-mode power supply according to the sampling result. The frequency control unit samples an input voltage or an output voltage of the boost conversion circuit, and calculates an operation frequency of the switch device of the switched-mode power supply circuit according to the sampling result. The PFWM signal generation module synthesizes a PFWM drive signal according to the duty cycle and the operation frequency. The PFWM drive signal drives a switch device of the boost conversion circuit and the DC-DC converter, so as to control an output voltage, an output current, or an output power provided to a load by the DC-DC converter.
申请人：SHANGHAI TUITUO TECHNOLOGY CO., LTD，上海推拓科技有限公司
地址：Building C, No. 888, West Huanhu Er Road New Nanhui Town, Pudong District Shanghai 201300 CN，中国上海市浦东新区南汇新城镇环湖西二路888号C楼, Shanghai 201300 CN 国籍：CN,CN
代理人：SHANGHAI SAVVY IP AGENCY CO., LTD.，上海思捷知识产权代理有限公司
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