Rapid hardware protection circuit with output overvoltage and overcurrent following setting

The invention discloses a rapid hardware protection circuit with output overvoltage and overcurrent following setting, which is characterized in that a bias voltage of a given output voltage Vset added with Vbias is used as a reference voltage for sampling comparison with the output voltage, and a bias voltage of a given output current Iset added with Ibias is used as a reference voltage for sampling comparison with the output current; according to the invention, the reference voltage of the output overvoltage comparator and the reference voltage of the output overcurrent comparator are both larger than the sampling values of the voltage and the current in the normal output state, the output states of the output overvoltage comparator and the output overcurrent comparator are both normal states during normal work, and when an overvoltage threshold value and an overcurrent threshold value exceeding the overvoltage or overcurrent reference are output, the comparator turns over to trigger hardware shutdown. 本发明公