Title: Electrical inverter circuit

Abstract: An electrical inverter comprises positive and negative supply lines, first and second thyristors the anodes of which are connected to the positive line and the cathodes of which are connected respectively to the anodes of third and fourth thyristors. An oscillatory commutating circuit including a capacitor and an inductor is provided and which is connected between the anodes of the third and fourth thyristors and also a firing circuit is provided to provide gate signals to the first, fourth, third and second thyristors in that order. In addition, means is provided to over-damp the oscillatory circuit thereby to limit the commutating voltage.

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Inventors: Chalmers, Brian John (Bramhall, EN)
Gibson, John Philip (Longsight, EN)

Application Number: 529753
Filing Date: 1974-12-05
Publication_date: 1976-01-13
Assignee: C.A.V. Limited (Birmingham, EN)
Primary Class(es): 363/138 327/472, 363/136
Other Classes:
US Patent Ref:

3213287	Oct, 1965	King	321/45.
3219905	Nov, 1965	Davis et al.	321/45.
3340453	Sep, 1967	Bradley et al.	321/45.
3355654	Nov, 1967	Risberg	321/45.
3568021	Mar, 1971	Turnbull	321/45.
3683264	Aug, 1972	Schieman et al.	321/45.

Other Refs: 250,277

Jun, 1970	SU

Other References: Electronic Industries, Oct., 1964, pp. 38-40.