Published:2009/6/24 1:41:00 Author:May | From:SeekIC
To start the HV supply, S1 is pressed,latching the relay.The 10-kΩ pot is set so that the relayjust latches. When HV current becomes excessive(arc-over,etc.) ,an excessive voltage is developedacross the 10-Ω WW pot,cutting off the 2N3904,causing the relay to unlatch This circuit was used in a 1000-W linear RF power amplifier.
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