APPLIANCES WITH PCB TRACE INTEGRITY SENSING

An appliance with automatic sensing of printed circuit board (PCB) trace integrity and associated methods of sensing are provided. The appliance may include a controller operative to control operation of the appliance, a load in operative communication with the controller, and a PCB. The PCB may inc...

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Bibliographic Details
Main Authors Hervol, Eric Theodore, Farris, Brett Alan
Format Patent
LanguageEnglish
Published 16.07.2020
Subjects
CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
PRINTED CIRCUITS
TESTING
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Summary:An appliance with automatic sensing of printed circuit board (PCB) trace integrity and associated methods of sensing are provided. The appliance may include a controller operative to control operation of the appliance, a load in operative communication with the controller, and a PCB. The PCB may include a first trace supplying AC power to the load, a second trace supplying a return path for the AC power, a third trace supplying an alternate return path for the AC power, and current sensing circuitry. The current sensing circuitry may be configured to sense leakage current between the first trace and the third trace, with the leakage current being indicative of declining trace integrity of the PCB.
Bibliography:Application Number: US201916247693