Power supply system and method and circuit using the same
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United States of America Patent
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May 15, 2018
Issued Date -
N/A
app pub date -
Jun 26, 2015
filing date -
Jun 27, 2014
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Abstract
A power supply system uses a DC-DC power converter (28) for supplying an output load. A compensation circuit (40) is connected between the input to the DC-DC converter and the output of the DC-DC converter and it provides a compensating path in response to a voltage drop at the output of the DC-DC converter caused by a surge in the output load. The power supply system further comprises a low drop out regulator (30) as the output load, which low drop out regulator (30) having an input connected to the DC-DC power converter and the compensation circuit, and an output connected to an output terminal (C) for connection to a further output load. This enables the DC-DC power converter to have a low current capability, because a large current demand can be met by the DC supply to the DC-DC converter.
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