Patent ID: 8884686

Claim:
A direct current voltage output circuit that outputs a direct current voltage from an output terminal, comprising: a set of voltage-division resistors connected in series between a direct current power source and ground: voltage-division switching devices that are connected in series with the set of voltage-division resistors between the direct current power source and the ground and which switch electrical connection states of the set of voltage-division resistors; bypass resistors connected in parallel with the voltage-division switching devices; a control circuit which controls the conduction states of the voltage-division switching devices; a direct current power source-side voltage-division switching device connected between the direct current power source and a direct current power source-side voltage-division resistor among the set of voltage-division resistors; a ground-side voltage-division switching device connected between the ground and a ground-side voltage-division resistor among the set of voltage-division resistors; a direct current power source-side bypass resistor connected in parallel with the direct current power source-side voltage-division switching device; a ground-side bypass resistor connected in parallel with the ground-side voltage-division switching device; and a source-follower circuit connected between the direct current power source-side voltage-division resistor and the ground-side voltage-division resistor.