Published:2011/4/2 4:38:00 Author:Nicole | Keyword: boost power supply | From:SeekIC
As shown, this is a polarity reversal boost power supply which is composed of boost switching regulator LT1172. The output voltage is -10 ~-30V, output current is 25mA, conversion efficiency is 80%. It uses the LT1172 to boost, and connect a charge pump which composed of C1, C2, D2, D3 on the output termination of LT1172, then to complete the output voltage polarity reversal.
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