Pulse generator circuit arrangement and method for generating pulsed signals for insulation fault location in IT networks
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United States of America Patent
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Jan 10, 2017
Grant Date -
Nov 21, 2013
app pub date -
May 14, 2013
filing date -
May 15, 2012
priority date (Note) -
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Abstract
A pulse generator circuit arrangement for the search for insulation faults in IT networks includes a rectifier circuit for transforming an IT network voltage into a DC intermediate circuit and switching elements having a trigger signal input for switching on and off a DC intermediate circuit voltage. A circuit device downstream of the switching elements generates a pulsed current to be supplied to the IT network. The circuit arrangement includes a control and evaluating logic for determining the insulation resistance of the IT network and also a circuit device for generating the pulsed current, which is formed as a current regulating device and allows a dynamic adjustment of the pulsed current depending on the determined insulation resistance.
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