Patent ID: 9577632
Date: 2017-02-21
CPC Classifications: H01R,H03K

Claim:
1. A wireless switching circuit, comprising: a charging capacitor; a voltage converter connected to the charging capacitor; a switch connecting the voltage converter to an alternating current (AC) power source; wherein the voltage converter converts AC voltage from the AC power source into direct current (DC) voltage to charge the charging capacitor when the switch is turned on; an infrared sensor unit to output a power signal or a standby signal according to infrared signals sensed by the infrared sensor unit; a single chip microcomputer (SCM) connected to the infrared sensor unit and the charging capacitor, wherein the SCM outputs a trigger signal when receiving the power signal from the infrared sensor and stops outputting the trigger signal when receiving the standby signal from the infrared sensor; a zero trigger circuit connected to the SCM, wherein input ends of the zero trigger circuit are connected to the SCM to receive the trigger signal; a triac connected to a socket, wherein an anode of the triac is connected to a zero line of the AC power source, a cathode of the triac is connected to the anode of the triac through the switch; a control end of the triac is connected to an output end of the zero trigger circuit; when the zero trigger circuit receives the trigger signal from the SCM, the triac is turned on, and the AC power source is connected to the socket; when the zero trigger circuit does not receive the trigger signal from the SCM, the triac is turned off, and the AC power source is disconnected from the socket; wherein the voltage converter has a first input, connected between the switch and a first end of the socket, and a second input connected between a second end of the socket and the zero line of the AC power source; and wherein the switch is connected in parallel with the triac.