Socket with sampling circuit

Abstract

The invention discloses a socket with a sampling circuit. The socket comprises a power module, a shell, electrode plates, a pressure sensor, a single chip microcomputer and a relay, wherein a socket hole is arranged in the shell; two electrode plates are arranged at the position, corresponding to the socket hole, on the inner wall of the shell; the pressure sensor is arranged between the two electrode plates; a signal detected by the pressure sensor is transmitted to the single chip microcomputer; the single chip microcomputer controls the relay to act according to the received signal from the pressure sensor; the power module provides the single chip microcomputer with a DC power supply; the sampling circuit, a filter circuit and an amplifying circuit are sequentially connected between the pressure sensor and the single chip microcomputer; the sampling circuit comprises an operational amplifier U1, an operational amplifier U2 and an operational amplifier U3; and a resistor R1 is connected with a non-inverting input end of the operational amplifier U1 in series. The socket has the advantages that an electric shock is avoided and the security of the socket is strengthened.

Description

technical field [0001] The invention relates to the field of daily necessities, in particular to a socket with a sampling circuit. Background technique [0002] At present, electricity has become an indispensable source of energy in people's lives. The types of electrical appliances in the family are constantly increasing, and sockets for electrical appliances and power supplies are essential. The electrodes in the jack are connected to the power supply. Sometimes after the plug is pulled out, the electrodes in the jack are still charged, posing a risk of electric shock. Contents of the invention [0003] The object of the present invention is to provide a socket with a sampling circuit in view of the above problems, so as to avoid electric shock and enhance the safety of the socket. [0004] In order to achieve the above object, the technical scheme adopted in the present invention is: [0005] A socket with a sampling circuit, including a power module, a shell, an elec...

AI Technical Summary

Problems solved by technology

[0002] At present, electricity has become an indispensable source of energy in people's lives. The types of electrical appliances in the family are constantly increasing, and sockets for electrical appliances and power supplies are essential. The electrodes in the jack are connected to the power supply, sometimes after the plug is pulled out, the electrodes in the jack are still charged, there is a risk of electric shock

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