Cooking appliance and controlling method thereof
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United States of America Patent
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Dec 25, 2018
Grant Date -
Nov 17, 2016
app pub date -
May 11, 2016
filing date -
May 12, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
Disclosed is a cooking appliance. The present invention includes a plurality of loads connected in parallel with each other, a plurality of load relays configured to be connected in series to a plurality of the loads in order to selectively supply commercial electricity supplied from a power supply unit to a plurality of the loads, respectively and be driven selectively in ON or OFF state, a safety relay configured to be connected in series to a plurality of the loads and be driven selectively in ON or OFF state, a detecting unit configured to sense a voltage applied to both ends of the safety relay by being connected to the safety relay, and a controller configured to control a plurality of the load relays, the safety relay and the detecting unit and determine a presence or non-presence of malfunction of a plurality of the load relays based on a signal from the detecting unit.
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