Contactless relay

The utility model provides a contactless relay. The anode of an optical coupling receiver IRR1 is respectively connected with one end of a resistor R1 and one end of a resistor R2; the other end of the resistor R1 is connected with the base electrode of the silicon carbide triode Q1, and the other end of the resistor R2 is connected with the base electrode of the silicon carbide triode Q2; the cathode of the optical coupling receiver IRR1 is respectively connected with the emitting electrode of a silicon carbide triode Q1, the anode of a silicon carbide diode D1, the emitting electrode of a silicon carbide triode Q2 and the anode of a silicon carbide diode D2; the collector electrode of the silicon carbide triode Q1 is connected with the negative electrode of the silicon carbide diode D1 to form an output terminal A1; the collector electrode of the silicon carbide triode Q2 is connected with the negative electrode of the silicon carbide diode D2 and forms an output terminal A2. The driving circuit has stronge