Patent ID: 6605932
Filing Date: 2003-08-12
Classification: H02M

Abstract:
A voltage booster circuit which boosts an input voltage by using a capacitor and generates a boosted voltage higher than said input voltage, comprising:an input terminal at which said input voltage is applied; an output terminal outputting said boosted voltage; a plurality of N channel transistors electrically connected in series between said input terminal and said output terminal; a plurality of first P channel transistors each of which respectively electrically connected with a corresponding one of said plurality of N channel transistors in parallel; a plurality of terminals for capacitor connections respectively electrically connected to one electrode of a corresponding one of said N channel transistors and one electrode of a corresponding one of said first P channel transistors connected to the corresponding one of said N channel transistors; and a controlling circuit that outputs signals each of which respectively controlling conductive states of corresponding ones of said N channel transistors and corresponding ones of said first P channel transistors, wherein each of said N channel transistors is controlled to be in a conductive state that is different than a conductive state of an adjacent N channel transistor, responsive to the control signals, and wherein each of said first P channel transistors is controlled to have a same conductive state as a corresponding one of said N channel transistors connected thereto in parallel, responsive to the control signals.