Driving circuit for preventing single-chip microcomputer from running away

The utility model discloses a driving circuit for preventing a single-chip microcomputer from running away. The driving circuit comprises a driving control circuit, a running-away preventing circuit and a relay, an output pin of the single-chip microcomputer is connected with the relay after passing through the anti-runaway circuit and the drive control circuit. The anti-runaway circuit comprises a resistor R11 and capacitors C10 and C11, after the capacitors C10 and C11 are connected in parallel, one ends of the capacitors C10 and C11 are connected with the resistor R11 and then connected with an output pin of the single chip microcomputer, and after the capacitors C10 and C11 are connected in parallel, the other ends of the capacitors C10 and C11 are connected with the driving control circuit; the capacitor C10 and the capacitor C11 are connected in parallel, so that direct current blocking and alternating current blocking are achieved, meanwhile, a PWM signal can pass through, and the design purpose of pre