Domestic appliance comprising a protected programming device

Details Domestic appliance comprising a protected programming device Domestic appliance comprising a protected programming device

H - Electricity

05

B

342/21, 327/2.51

H05B 6/68 (2006.01) A61N 5/06 (2006.01) H01H 47/00 (2006.01)

Patent

CA 1131715

1.11.1979 1 PHN 9299 ABSTRACT: "Irradiation device comprising a protected programming device". A domestic appliance comprises a programming device for receiving on-time information and for updating, by way of repetitions signals, the on- time yet to be completed. Furthermore, these repetitious signals continuously activate an activation signal which, however, is independently terminated if the repetitious signals do not appear. When the activation signal is present, first and second switching components are activated, so that a discharge tube can emit ultra- violet radiation. Furthermore, there is provided a detection element which detects whether the first and second switching components are indeed deactivated out- side the on-time. If one of the two switching components remains active also outside the on-time, the detection element supplies a signal to prevent the starting of a next on-time.

341412

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