Electronic control for a dishwasher

Details Electronic control for a dishwasher Electronic control for a dishwasher

1991-07-25

1993-04-13

Gaffin, Jeffrey A.

Electrical transmission or interconnection systems

Plural load circuit systems

Selectively connected or controlled load circuits

68 1226, 134 58DL, 307 18, 307125, 3071411, H02J 300

Patent

active

052025829

ABSTRACT:
An appliance control circuit used in a dishwasher which includes only a single door switch which is used both for disabling/enabling the AC voltage components of the dishwasher and which also provides an input to the microprocessor of the control circuit. A zero crossing conditioning circuit is also included to condition the door switch signal and to provide it to the microprocessor. The microprocessor control is electrically isolated from the grounded side of the line voltage.

REFERENCES:
patent: 3850185 (1974-11-01), Guth
patent: 3862439 (1975-01-01), Coccio
patent: 4213313 (1980-07-01), Kiefer et al.
patent: 4241400 (1980-12-01), Kiefer
patent: 4245309 (1981-01-01), Kiefer
patent: 4245310 (1981-01-01), Kiefer
patent: 4305122 (1981-12-01), Smith et al.
patent: 4467423 (1984-08-01), Smith et al.
patent: 4866955 (1989-09-01), Blair et al.
patent: 5006767 (1991-04-01), Maruyama et al.

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