Power supply device for charge pumping

摘要

A power supply device includes; first/second boost circuits that boost voltages applied to a first/second boost nodes in response to a first/second main signals, and respectively operated first/second transmission unit that control provision of boosted voltages to an output node. The power supply device also includes a bulk voltage controller connected between the boosted nodes and controlling a connection between the output node and a bulk node in response to a bulk control signal. Voltages respectively applied to the first and second transmission units are determined in response to an output node voltage, as well as the first/second main signals.

主权项

1. A power supply device comprising:
a boost circuit unit that boosts voltages of a first boost node and a second boost node in response to a first main signal and a second main signal, respectively; an output unit including a first transmission unit and a second transmission unit that provides a boosted voltage via an output node, wherein the first transmission unit applies the voltage of the first boost node to the output node and the second transmission unit applies the voltage of the second boost node to the output node; and a bulk voltage controller, connected between the first boost node and the second boost node, that controls a connection between the output node and a bulk node in response to a bulk control signal, wherein first and second voltages respectively applied to gates of the first transmission unit and the second transmission unit are determined according to a voltage apparent at the output node, the first main signal and the second main signal.