Touch switch circuits

Details Touch switch circuits Touch switch circuits

1976-08-23

1978-10-10

Schaefer, Robert K.

Electrical transmission or interconnection systems

Switching systems

Condition responsive

328 5, 361181, H01H 3500

Patent

active

041198646

ABSTRACT:
In one embodiment, the amount of power delivered to a load depends upon the length of time a touch switch is actuated or on the number of times it is actuated. In a second embodiment, the power delivered to a load starts at one level and smoothly changes to a second level. Both embodiments include a zero-crossover detector, an a.c. operated load, and a circuit responsive both to zero-crossover pulses and to a circuit actuated by the touch switch for controlling the portion during each half period of the a.c. during which power is applied to the load.

REFERENCES:
patent: 3811054 (1974-05-01), Wern et al.
patent: 3829705 (1974-08-01), Richter
patent: 3857100 (1974-12-01), Baars
patent: 4016428 (1977-04-01), Gutterman

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