Holding circuit for static convertor valves

Details Holding circuit for static convertor valves Holding circuit for static convertor valves

1976-01-26

1977-05-17

Shoop, William M.

321 5, 321 47, H02M 118

Patent

active

040244547

ABSTRACT:
In a static convertor which comprises at least one rectifier bridge with valves or rectifiers arranged in commutating groups and a control pulse emitter connected to the valves by individual control circuits, in order to ensure that during operation one valve in each group always receives an ignition signal, a holding circuit is provided for each valve and its control circuit and a signal output for indicating valve ignition. The holding circuit is connected on its input side to the signal outputs for the valves in the proper commutating group in such a way that the holding circuit is switched on by the signal outputs of its own valves and switched off by the signals from the signal outputs of the other valves.

REFERENCES:
patent: 2532107 (1950-11-01), Lamm
patent: 3421023 (1969-01-01), Fry
patent: 3462619 (1969-08-01), Grees et al.
patent: 3470450 (1969-09-01), Eriksson et al.
patent: 3644753 (1972-02-01), Ginsberg
patent: 3670236 (1972-06-01), Ekstrom

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