Switching system for cyclic supply of electrical power to a plur

Details Switching system for cyclic supply of electrical power to a plur Switching system for cyclic supply of electrical power to a plur

1981-04-29

1983-10-18

Paschall, M. H.

Electric heating

Heating devices

With power supply and voltage or current regulation or...

219483, 219508, 219201, 323272, 323319, 307 40, 307 41, 244134R, 244134D, H05B 102

Patent

active

044107943

ABSTRACT:
A switching system for sequential connection of a plurality of loads to an alternating current supply comprises a computer for generating switch selection data in the form of serial bits along a single line to a distributor arrangement which decodes the selection data and provides control signals to switch devices which connect the loads to the supply. The distributor arrangement includes a circuit for inhibiting supply of the control signals to the respective switch devices unless the voltage of the supply phase connected by the device is substantially zero. Additionally the control signals are time-advanced with respect to the zero voltage conditions so that the switch devices can be placed in states in which they can connect a load before disconnection of a preceding load.

REFERENCES:
patent: 3417320 (1968-12-01), Muskovac
patent: 3496331 (1970-02-01), Fleury et al.
patent: 3586869 (1971-06-01), Kompelien
patent: 3855452 (1974-12-01), Flaza et al.
patent: 4010412 (1977-03-01), Forman
patent: 4174496 (1979-11-01), McFall et al.
patent: 4282422 (1981-08-01), Payne et al.
patent: 4292502 (1981-09-01), Adams

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