发明名称 Power supply
摘要 There are provided an inductive load current control circuit for detecting and controlling a current flowing to an inductive load with high accuracy, and a power supply. The inductive load current control circuit includes first and second switch elements connected in series between an input voltage and a ground potential, an inductive load connected to a connection point between the first and second switch elements, a third switch element having one terminal connected to the connection point between the first and second switch elements, a current comparator connected to another terminal of the third switch element to compare an output current of the third switch element with a reference current, decide and output a magnitude relation, and a switch element control circuit that controls transition from a state in which the second switch element is turned on to a state in which the first switch element is turned on according to an output of the current comparator.
申请公布号 US7592792(B2) 申请公布日期 2009.09.22
申请号 US20050547487 申请日期 2005.03.24
申请人 PANASONIC CORPORATION 发明人 RYU TAKASHI;AKASHI HIROKI;ISHII TAKUYA;SAITO HIROSHI
分类号 G05F1/00;H02M3/155;H02M3/156 主分类号 G05F1/00
代理机构 代理人
主权项
地址