Passive testing instrument

Details Passive testing instrument Passive testing instrument

G - Physics

01

R

324/58.3

G01R 31/02 (2006.01) G01R 19/155 (2006.01) G01R 31/00 (2006.01) G01R 31/28 (2006.01)

Patent

CA 1140633

TITLE PASSIVE TESTING INSTRUMENT ABSTRACT An apparatus for testing the current path integrity and operation of a wiring harness and associated components for a vehicle speed control. The testing instrument is powered from the vehicle power supply and utilizes LEDs to provide a visual indication as to the proper and/or improper operation of the tested circuit. Each LED is connected in series with a current limiting resistor and one or more of the LEDs are connected in series with a blocking diode to protect the LEDs from reverse polarity voltages. Diodes are also connected in parallel with one or more of the LEDs, their series resistors and the blocking diode to limit the forward bias voltages which can develop across the LEDs. - 1 -

306947

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