High input voltage voltage-stabilization circuit

Published:2011/7/13 6:42:00 Author:Christina | Keyword: High input voltage, voltage-stabilization | From:SeekIC

The maximum input voltage-stabilization circuit can be used in the condition of the input voltage, itis higher than the rated voltage of the voltage stabilizer, the high partial pressure power transistor is connected in the input circuit. The resistance value of R1 can be comfirmed by this formula: In this formula: Vi--input voltage;VZ--voltage stabilization value of the voltage stabilization diode;Io--the maximum output current of the integrated voltage stabilizer;β--current amplification coefficient of the semiconductor transistor.



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