Electronic centrifugal switch circuit for double-speed motor

The utility model relates to an electronic centrifugal switch circuit for a double-speed motor. The electronic centrifugal switch circuit comprises a starting winding, a low speed winding, a high speed winding, a first electronic switch circuit, a second electronic switch circuit, a third electronic switch circuit, a single chip microcomputer, a motor rotation speed detection circuit, a voltage detection circuit and a low-voltage power supply circuit. The high speed winding and the first electronic switch circuit are serially connected with the starting winding. The second electronic switch circuit and the low speed winding are connected in series. The high speed winding and the starting winding are parallelly connected with the low speed winding. One end of the third electronic switch circuit is connected with the high speed winding, and the other end of the third electronic switch circuit is connected with the starting winding and the low speed winding. The first electronic switch circuit, the second electronic switch circuit and the third electronic switch circuit are connected to the single chip microcomputer. The voltage detection circuit, the motor rotation speed detection circuit and the low-voltage power supply circuit are connected to the single chip microcomputer. The automatic switching of motor windings can be realized, and the electronic centrifugal switch circuit has the advantages of long service life and high reliability.