Overcurrent and overvoltage self-locking protection circuit
The utility model discloses an overcurrent and overvoltage self-locking protection circuit, which relates to the field of intelligent electronics and comprises a self-locking protection circuit, an overvoltage detection circuit and an overcurrent detection circuit which are electrically connected, t...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The utility model discloses an overcurrent and overvoltage self-locking protection circuit, which relates to the field of intelligent electronics and comprises a self-locking protection circuit, an overvoltage detection circuit and an overcurrent detection circuit which are electrically connected, the self-locking protection circuit is connected in series in a loop to be protected, and a first threshold value is arranged in the overvoltage detection circuit. Wherein the overvoltage detection circuit is used for detecting loop voltage and transmitting a self-locking signal to the self-locking protection circuit when the voltage exceeds a first threshold value, a second threshold value is arranged in the overcurrent detection circuit, and the overcurrent detection circuit is used for detecting loop current and transmitting the self-locking signal to the self-locking protection circuit when the current exceeds the second threshold value. And the self-locking protection circuit is used fordisconnecting the loop a |
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