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1. 发明授权

US06982531B2 Driving circuit for switches of direct current fan motor 有权
标题翻译：直流风扇电机开关的驱动电路
公开(公告)号：US06982531B2
公开(公告)日：2006-01-03
申请号：US10651587
申请日：2003-08-29
申请人： Lain-ken Lin , Sans Chang , Magellan Chiu , Wen-shi Huang
发明人： Lain-ken Lin , Sans Chang , Magellan Chiu , Wen-shi Huang
IPC分类号： H02P3/18
CPC分类号： H03K17/08122 , H02P7/05
摘要： A driving circuit for switches of direct current fan motor is disclosed. The driving circuit includes a plurality of switches, a first control circuit, and a second circuit. The switches are driven by a first pulse width modulation signal and a second pulse width modulation signal, and they are electrically connected with the direct current fan motor in a bridge manner. A third pulse width modulation signal is used to drive the first control circuit connected to at least one of the switches driven by the first pulse width modulation signal. A fourth pulse width modulation signal is used to drive the second control circuit connected to at least one of the switches driven by the second pulse width modulation signal. Especially, either the first pulse width modulation signal or the second pulse width modulation signal is selected as the third pulse width modulation signal or the fourth pulse width modulation signal.
摘要翻译：公开了一种用于直流风扇电动机的开关的驱动电路。驱动电路包括多个开关，第一控制电路和第二电路。这些开关由第一脉冲宽度调制信号和第二脉冲宽度调制信号驱动，它们以桥式方式与直流风扇电动机电连接。第三脉冲宽度调制信号用于驱动与由第一脉冲宽度调制信号驱动的至少一个开关连接的第一控制电路。第四脉冲宽度调制信号用于驱动与由第二脉冲宽度调制信号驱动的至少一个开关连接的第二控制电路。特别地，选择第一脉冲宽度调制信号或第二脉冲宽度调制信号作为第三脉冲宽度调制信号或第四脉冲宽度调制信号。

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