Static converter of symmetrical type

Details Static converter of symmetrical type Static converter of symmetrical type

1980-06-26

1982-03-30

Shoop, William M.

Electric power conversion systems

Current conversion

Using semiconductor-type converter

363 22, 363 56, 315219, 331113A, H02M 7537

Patent

active

043227899

ABSTRACT:
The invention relates to static converters of the symmetrical type whose function is to convert an input direct current voltage into an output alternating current voltage of chosen frequency and power. The self-oscillator according to the invention is composed of two transistors mounted with a common emitter. The device is energized, for instance, from a main power supply unit, associated with a voltage limiter circuit, which subjects the output power of the device to any parameter. The capacitive power factor of the device is compensated by an inductance connected in series with the main power supply. The device according to the invention can replace, advantageously, the conventional "ballast" for fluorescent lamps.

REFERENCES:
patent: 3350661 (1967-10-01), Bloom et al.
patent: 3818312 (1974-06-01), Luursema et al.
patent: 3927363 (1975-12-01), Mitchell et al.
patent: 4109307 (1978-08-01), Knoll
patent: 4127893 (1978-11-01), Goepel
patent: 4188660 (1980-02-01), Knoll

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