Rosenberg, Klein & Lee
Time-sharing current sense circuit for a multi-phase converter
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.
Richtek Technology Corp.
H H
H02M H02M
additional inventional
Hsin-Hsin Hung-I Jiun-Chiang Liang-Pin
Ho Wang Chen Tai