DC switch protective circuit switching detection device and method
A technology for protecting circuits and DC switches, used in measuring devices, fuse testing, measuring electricity, etc., can solve the problems of low reliability and undetectable on-off state detection, and achieve improved real-time and reliability, high detection speed. Effect
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[0032] The technical solution of the present invention will be described in detail below with reference to the drawings.
[0033] In order to realize the detection of the on-off status of the DC switch protection circuits such as battery fuses, load circuit breakers, and air switches, the present invention can adopt the following method: input a preset signal wave at the input end of the DC switch protection circuit; then detect the DC switch protection Whether there is the signal wave at the output end of the circuit; if there is no such signal wave, it is determined that the DC switch protection circuit is off, otherwise, it means that the DC switch protection circuit is on. Based on this detection idea, such as figure 1 As shown, the present invention provides an on-off detection device for a DC switch protection circuit. The device can be used to detect the on-off state of the DC switch protection circuit 100 provided in a power supply system, and it mainly includes: a signal...
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