Josephchiang
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Dear all,
I was confused that what kind of feedback topology does LDO circuit act.
I think that the error amplifier sense the feedback voltage from resistor dividers and judge the output voltage going either larger or less by compare the sensed voltage with reference voltage.So the topology should be series-shunt feedback.
But something weird is that the power MOSFET supply current to output loading.
The feedback block of resistor divider seems weird to sense the output current provided by power MOS.
How to illustrate the weird thing?
Am I right? Please correct me if I am wrong.
Any help is sincerely appreciate.
I was confused that what kind of feedback topology does LDO circuit act.
I think that the error amplifier sense the feedback voltage from resistor dividers and judge the output voltage going either larger or less by compare the sensed voltage with reference voltage.So the topology should be series-shunt feedback.
But something weird is that the power MOSFET supply current to output loading.
The feedback block of resistor divider seems weird to sense the output current provided by power MOS.
How to illustrate the weird thing?
Am I right? Please correct me if I am wrong.
Any help is sincerely appreciate.