+5V-+12V boost pressure supply circuit diagram

Published:2011/4/1 1:23:00 Author:Ecco | Keyword: boost pressure supply | From:SeekIC

The boost pressure supply is composed of an efficient, low-power boosting d.c. convertor MAX761 and a few outer circle components. Its characteristics are: the efficiency of conversion is is 86%;The quiescent current is 110 μ A; Having the function of measuring the voltage of low batteries. In the chart, R3, R4 are divider resistances to measure the voltage of batteries, their value is generally counted according to the formula of R4=R3（VTPIP/1.5-1, and VTPIP is measuring triggering voltage.



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