Patent ID: 6054880
Filing Date: 2000-04-25
Classification: H03F

Abstract:
An integrated circuit comprising:a high-voltage output stage comprisinga low-voltage input,a high-voltage output,a first MOS transistor having a gate connected to the low-voltage input and a source connected to a first reference voltage,a second MOS transistor having a drain connected to a second reference voltage and a source connected to the high-voltage output,a current source having a first terminal connected to the second reference voltage and a second terminal connected to a gate of the second MOS transistor,a diode having a first terminal connected to the gate of the second MOS transistor and a second terminal connected to the source of the second MOS transistor,a third MOS transistor having a drain connected to the high-voltage output, a gate connected to a third reference voltage and a source connected to a drain of the first MOS transistor, anda first bipolar transistor having a collector connected to the first terminal of the diode, a base connected to the third reference voltage and an emitter connected to the drain of the first MOS transistor.