发明名称 LDO(Low Drop Out Regulator) having phase margin compensation means and phase margin compensation method using the LDO
摘要 <p>The phase margin compensation method according to an exemplary embodiment of the present invention includes: outputting reference voltage (Vout2); outputting a first reference voltage (Vout1) actually supplied to the target circuit; comparing the reference voltage (Vout2) with the first reference voltage (Vout1) by the comparator; counting any section of an output signal (pulse signal) from the comparator by a predetermined frequency by the duty cycle calculator; and controlling a phase margin of a frequency of output voltage supplied to the target circuit by controlling buffer current based on the duty cycle ratios and the output bit information fed back from the duty cycle calculator.</p>
申请公布号 KR101387300(B1) 申请公布日期 2014.04.18
申请号 KR20120042163 申请日期 2012.04.23
申请人 发明人
分类号 G05F1/563 主分类号 G05F1/563
代理机构 代理人
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