Stabilized DC power supply device

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321 14, H02H 712

Patent

active

040244512

ABSTRACT:
A stabilized DC power supply device providing a plurality of different stabilized DC powers with regulated voltage levels. Stabilized DC powers with rated currents of 2A. or less are taken out from transistor series regulator circuits, another stabilized power with rated current of 8-10A. or more is output from a magnetic amplifier regulator circuit and other powers with rated current of 8-10A. or less are obtained from transistor switching regulator circuits. The regulated voltage output from one of the switching regulator circuits is used as an input DC power for the series regulator circuits and is fed to them through an DC-AC inverter circuit and respective rectifier circuits. Input powers to both the switching regulator circuits and the magnetic amplifier regulator circuit are from a DC power source through a single DC-AC inverter circuit. The device is small in size and good in efficiency. Overvoltage and overcurrent prospective circuits are provided to stop the operation of the DC-AC inverter circuit when either overcurrent or overvoltage occurs.

REFERENCES:
patent: 3199015 (1965-08-01), Lackey et al.
patent: 3337787 (1967-08-01), Joseph
patent: 3394298 (1968-07-01), Logan
patent: 3473039 (1969-10-01), Fegley
patent: 3818308 (1974-06-01), Tamari

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