Motor driving circuit based on relays

The invention discloses a motor driving circuit based on relays. The motor driving circuit comprises a first relay circuit, a second relay circuit, a motor speed adjusting circuit and a motor circuit,wherein the first relay circuit and the second relay circuit are respectively connected with the anode and the cathode of the motor circuit; the motor speed adjusting circuit is connected with the first relay circuit and the second relay circuit. By adopting the motor driving circuit based on the relays, two relays are adopted to drive the motor, the two relays can be both connected between a power supply and the ground through control, motor current directions can be switched, positive rotation and negative rotation can be achieved, power supply short circuit can be avoided by any switch combination of the two relays, an MOS (Metal Oxide Semiconductor) tube is accessed into a public end of the motor to adjust the rotation speed of the motor, the problem of speed adjustment can be solved,and the motor is simple i