FIELD: engineering of radio-electronic equipment, possible use for providing interference resistance.
SUBSTANCE: protection block has stabilitron-resistor threshold device and transistor, in of which is connected to output of stabilitron-threshold device, second stabilitron threshold device, connected in parallel to first stabilitron-resistor threshold device and second transistor connected to its output, enabled serially with first transistor, while serially connected transistors are connected in parallel to block output.
EFFECT: increased reliability.
1 dwg
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