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2. 发明授权

US06490179B1 Post-regulated power supply 有权
标题翻译：后调节电源
公开(公告)号：US06490179B1
公开(公告)日：2002-12-03
申请号：US09999010
申请日：2001-10-31
申请人： Jeffrey John Boylan , Gary Robert Kidwell
发明人： Jeffrey John Boylan , Gary Robert Kidwell
IPC分类号： H02M3335
CPC分类号： H02M1/38 , H02M3/33507 , H02M3/33561 , H02M3/33592 , Y02B70/1475
摘要： An architecture for a post regulator control circuit that utilizes an advance trigger signal to trigger the post regulator ramp. This advance trigger signal anticipates the beginning and end of a power cycle, and can be used to drive all of the secondary rectifier switches with optimal timing to minimize both cross conduction and body diode conduction. The architecture can be used to cascade an arbitrary number of post regulators. The present invention provides to the auxiliary outputs the full range of regulation available to the main output even in light load conditions. Rather than sensing the beginning or end of the power cycle, the present invention anticipates the beginning and end of the power cycle using the pulse train generated by the feedback loop for the main output. This allows the circuit to prepare the switches for the beginning of the power cycle and avoids problems encountered with inherent propagation delays in the circuit. Using the advance trigger signal, all of the switches may be driven with precise timing.
摘要翻译：一种用于后稳压器控制电路的架构，其利用提前触发信号触发后调节器斜坡。该提前触发信号预期功率周期的开始和结束，并且可以用于以最佳定时驱动所有次级整流开关，以最小化交叉导通和体二极管导通。该架构可用于级联任意数量的后稳压器。本发明为辅助输出提供即使在轻负载条件下也可用于主输出的全范围调节。本发明不是检测功率周期的开始或结束，而是使用由主输出的反馈回路产生的脉冲串来预测功率周期的开始和结束。这允许电路在开始电源周期时准备开关，并避免电路中固有的传播延迟遇到的问题。使用提前触发信号，可以精确定时驱动所有开关。

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