Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Lumped type parameters
Patent
1995-10-12
1997-12-23
Brown, Glenn W.
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Lumped type parameters
324545, 322 99, G01R 3134
Patent
active
057010897
ABSTRACT:
An improved alternator/starter testing device includes an electronic voltage regulator for regulating the output of an externally regulated alternator. A selectable load switch allows so-called "high output" alternators to be tested without damaging the voltage regulator. For certain types of internally regulated alternators, the testing device includes a meter disconnect circuit, coupled to an "energize" switch in the testing device, which operates to disconnect the testing meter during a period in which the energize switch is temporarily depressed to supply power to an internally regulated alternator under test, thus preventing misleading test results if a defective alternator is tested. Internal thermal circuit breakers are provided at strategic locations in the testing device to prevent internal circuit damage due to defective alternators and starters. A delay off timer circuit disconnects power from a starter under test after a predetermined time period in order to prevent damage to the starter due to overtesting.
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Autozone, Inc.
Brown Glenn W.
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