Electronic safety device
The utility model discloses an electronic safety device, belonging to the electric appliance safety technical field. The circuit structure is as follows: a sensor primary coil is in connection with resistors R1 and R2, the connection points of which are in connection with an IN+ end of an amplificat...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model discloses an electronic safety device, belonging to the electric appliance safety technical field. The circuit structure is as follows: a sensor primary coil is in connection with resistors R1 and R2, the connection points of which are in connection with an IN+ end of an amplification module; one circuit of an alternating current power supply 220V connects a load electric appliance and a sensor secondary coil to a relay contact No.2 and the other circuit connects a fuse to a relay contact No.1. A direct current power supply +9V end is in connection with one side of a relay coil and the opposite side is in connection with one end of a button and an anode of a silicon controlled rectifier. A cathode of the silicon controlled rectifier is in connection with the button and the ground; the +9V end is meanwhile in parallel with a resistor R6, a +v end of the amplification module and a resistor R3; the connection points of the resistor R3 and a resistor R4 are in connection with an IN end of the am |
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