Switching control apparatus for vending machine alternating...

Details Switching control apparatus for vending machine alternating... Switching control apparatus for vending machine alternating...

H - Electricity

02

P

342/11.2

H02P 1/54 (2006.01) G07F 5/18 (2006.01) G07F 9/08 (2006.01) G07F 11/16 (2006.01)

Patent

CA 1254635

Abstract An improved switching control apparatus for switching a number of alternating current (AC) devices, such as AC vend motor uses a reduced number of AC power switching elements such as relays by dividing the AC devices into two groups and using one switching element to select which of the two groups is to be selected, and using an additional number of AC power switching elements each of which is connected to one of the AC devices in each of the two groups to select which one of the AC devices is to be activated. Preferably, a further AC power switching element is used to control the flow of power to the group determining AC power switching element so that switching transients can be minimized. -23-

520138

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