Dc-to-ac Inverter

Details Dc-to-ac Inverter Dc-to-ac Inverter

1981-01-09

1984-09-11

Beha, Jr., William H.

Electric power conversion systems

Current conversion

Including automatic or integral protection means

363 71, 363 75, 363 97, H02H 7122, H02P 1316

Patent

active

044714220

ABSTRACT:
A dc-to-ac inverter employing a control low power section and a power section. The low power section comprises a square wave generator, cross-coupled NOR latches and low level transistor switches for providing switching current to the power section. The power section employs complementary FET drivers and power switches connected to a battery or other source of dc and a ferro-resonant transformer for changing dc to ac.
The power section is protected by a voltage sensor. In a preferred embodiment, this voltage is proportional to the current through the respective power switches and is used to unlatch the applicable NOR latch, thereby causing shut off of the protected network of the power section.

REFERENCES:
patent: 3735235 (1973-05-01), Hamilton et al.
patent: 3946301 (1976-03-01), Love
patent: 4013935 (1977-03-01), Seipmann
patent: 4079444 (1978-03-01), Kuhn
patent: 4149233 (1979-04-01), Frosh
patent: 4150424 (1979-04-01), Nuechterlein
patent: 4293902 (1981-10-01), White
PESC'78 Record, Syracuse, N.Y., U.S.A., pp. 325-30, (Jun. 13-15, 1978), S9025-0054.
Proceedings of Powercon S., San Francisco, CA, U.S.A. pp. F3-1/6, S9177-0092, pp. D2-1/8, S9177-0086.

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