Relay driving circuit and electrical equipment

The invention discloses a relay driving circuit and electrical equipment, and the circuit comprises a high-voltage power supply unit, the first end of the high-voltage power supply unit is suitable for being connected with a first power supply, and the second end of the high-voltage power supply unit is connected with the first end of a relay coil. The first power supply is configured to supply the first power supply to the relay coil when the relay switch is driven to be closed; the first end of the low-voltage power supply unit is suitable for being connected with a second power source, the second end of the low-voltage power supply unit is connected with the second end of the relay coil, and the third end of the low-voltage power supply unit is grounded and configured to enable the second end of the relay coil to be grounded when the relay switch is driven to be closed. The first power supply supplies power to the relay coil and supplies the second power supply to the relay coil after the relay switch is closed, so that the relay coil maintains the relay switch to be closed according to the voltage difference between the first power supply and the second power supply, and the voltage of the first power supply is larger than that of the second power supply.