Patent ID: 6111457
Filing Date: 2000-08-29
Classification: G05F

Abstract:
An internal power supply circuit for use in a semiconductor device comprising:an output node for outputting an internal voltage;means for comparing the internal voltage with a reference voltage to generate a comparison signal;means for providing charge to the output node in response to the comparison signal; andmeans for discharging the output node when the internal voltage is higher than the reference voltage until the internal voltage is substantially equal to the reference voltage;wherein said means for discharging the output node comprises:a first node;an N-channel transistor having a drain for receiving the reference voltage, a gate connected to its drain, and a source connected to the first node;a ground;a resistor connected between the first node and the ground; anda first P-channel transistor having a source connected to the output node, a drain connected to the ground, and a gate connected to the first node.