Universal protector
A protector and shift register technology, which is applied in emergency protection circuit devices, protection against overvoltage, emergency protection devices with automatic disconnection, etc., can solve problems such as real-time difference, and achieve the effect of improving real-time processing capability
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[0032] The specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing:
[0033] refer to figure 1 As shown, the general protector of this embodiment mainly includes an analog input circuit for receiving analog sampling current signals, leakage resistance signals and sampling voltage signals, and amplifying them for output; a logic action switching input circuit for Receive digital logic action signals input in parallel and output them serially; the first single-chip microcomputer with a built-in analog-to-digital converter is used to perform analog-to-digital conversion on the received sampling current signal, leakage resistance signal and sampling voltage signal, According to the digital sampling current signal, leakage resistance signal, sampling voltage signal and logic action signal, it is judged whether the back-end electrical equipment is working normally. If the operation is abnormal, the corresponding logic action...
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