Reliable top electrical resetting apparatus

The utility model provides a reliable power supplying resetting device, comprising a delay circuit, an isolation driver, a controllable isolation driver, a watchdog chip and a pull up resistor. The reliable top electrical resetting device is characterized in that the output terminal of the delay circuit is connected with the input terminal of the isolation driver, the output terminal of the delay circuit becomes a standard logic electrical level after passing through the isolation driver, and the output terminal of the delay circuit is sent to the control terminal of the controllable isolation driver; the output terminal of the watchdog chip is connected with the input terminal of the controllable isolation driver, and the output terminal of the controllable isolation driver is connected with the pull up resistor and the resetting legs of chips on a power supplying resetting circuit board. The delay circuit and the controllable isolation driver are utilized on the circuit board of the reliable top electrical resetting device, the circuit board is ensured that the chips are reset after power supply voltage reaches standard working voltage when the circuit board is supplied with power, the reliability and the success ratio in power supplying process are increased, and the power supplying process of the circuit board is simplified.