发明名称 |
Time-sharing current sense circuit for a multi-phase converter |
摘要 |
In a time-sharing current sense circuit for a multi-phase converter, a common transconductive amplifier is selectively connected to the channels of the converter power stage by a plurality of first switches under the control of a set of control clocks to detect the channel current of a selected channel among the channels so as to generate a sense current, and a sense current generated by the common transconductive amplifier from the sensed channel current is switched by a plurality of second switches under the control of the same control clocks to connect to one of a plurality of sampling-and-holding circuits each corresponding to one of the channels to generate a current sense signal to modulate the channel current of the selected channel.
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申请公布号 |
US6960905(B2) |
申请公布日期 |
2005.11.01 |
申请号 |
US20040828220 |
申请日期 |
2004.04.21 |
申请人 |
RICHTEK TECHNOLOGY CORP. |
发明人 |
CHEN JIUN-CHIANG;HO HSIN-HSIN;WANG HUNG-I;TAI LIANG-PIN |
分类号 |
G05F1/40;G05F1/563;H02M3/158;(IPC1-7):G05F1/563 |
主分类号 |
G05F1/40 |
代理机构 |
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地址 |
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