Test circuit for a withstand voltage tester
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United States of America Patent
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Apr 15, 2003
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N/A
app pub date -
Oct 19, 1999
filing date -
Oct 19, 1999
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Abstract
A test circuit for a withstand voltage tester, which includes a high voltage source, an overload-protective current detection device having one end connected to the high voltage source and an opposite end connected to the sample to be tested, and a second current detection device connected to the circuit of the high voltage source and the overload-protective current detection device, the second current detection device having a switch connected to the high voltage source, and detector means connected to ground to detect a high voltage, such that when the human body touches the test circuit and receives a high voltage through the ground, the detector means detects the presence of the high voltage, and outputs a signal to the switch upon such detection, causing the switch to cut off the circuit between the high voltage source and the test sample.
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