| 摘要 |
A dual loop voltage regulation circuit of power supply chip is provided, comprising a capacitor for providing a voltage signal, a comparator for comparing a first reference voltage signal and the voltage signal to output forward or backward trigger signal, a first switch triggered by a forward trigger signal, a second switch triggered by a backward trigger signal, a first operational amplifier generating a first drive signal while the first and second switches are on, a first transistor switch triggered to be on by a first drive signal to provide a current source loop, a third switch triggered by a forward trigger signal, a fourth switch triggered by a backward trigger signal, a second operational amplifier generating a second drive signal while the third and fourth switches are on, and a second transistor switch triggered to be on by a second drive signal to provide a current sink loop.
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