High voltage source, 12/30 volts 80 milliamps. Encyclopedia of radio electronics and electrical engineering
Encyclopedia of radio electronics and electrical engineering / Power Supplies
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This transformerless voltage converter is designed to power various electronic devices with a voltage of 25...30 V with a current consumption of up to 70...80 mA from the car's on-board network with a voltage of 12 V.
The principle of operation of the converter is clear from the diagram shown in fig. 4.55.
A multivibrator on transistors with a powerful output generates pulses that are fed to a voltage multiplier with stabilization. The generation frequency of the multivibrator is 10 kHz.
Author: Semyan A.P.
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