发明名称 System and method for increasing effective pulse-width modulated drive signal resolution and converter controller incorporating the same
摘要 A system for, and method of, increasing effective pulse-width modulated (PWM) drive signal resolution and a power converter incorporating the system or the method. In one embodiment, the system includes: (1) a duty cycle calculator configured to calculate a theoretical duty cycle for a PWM drive signal to be provided to an associated power converter based on at least one operating condition thereof, the theoretical duty cycle not a member of a pre-established set of allowable duty cycles and (2) a duty cycle approximator coupled to the duty cycle calculator and configured to generate a sequence of members of the set of allowable duty cycles, wherein the sequence at least approximately averages to the theoretical duty cycle.
申请公布号 US6965260(B1) 申请公布日期 2005.11.15
申请号 US20040812531 申请日期 2004.03.30
申请人 TYCO ELECTRONICS POWER SYSTEMS, INC. 发明人 YE RON;VU LAM;FU MINGHUA
分类号 H02M3/157;H03K5/13;H03K5/156;H03K7/08;(IPC1-7):H03K5/13 主分类号 H02M3/157
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