Patent ID: 6107863
Filing Date: 2000-08-22
Classification: H03K

Abstract:
A charge pump circuit comprising a first pump section, the first pump section including:a first switching element which includes a first rectification transistor and a second rectification transistor;a second switching element which includes a first precharge transistor and a second precharge transistor;a first node which is coupled to the first switching element via a first capacitor; anda second node which is coupled to the second switching element via a second capacitor,wherein the charge pump circuit converts an input voltage to an output voltage by complementary action of the first switching element and the second switching element responsive to a first driving voltage signal and a second driving voltage signal, respectively, the output voltage being output via an output terminal,the first rectification transistor and the second rectification transistor respectively have a first rectification control terminal and a second rectification control terminal,the first precharge transistor and the second precharge transistor respectively have a first precharge control terminal and a second precharge control terminal,the first node, the second node and the output terminal are electrically isolated from the first and second rectification control terminals and the first and second precharge control terminals, andthe first and second rectification control terminals and the first and second precharge control terminals each receive a voltage having an amplitude which swings over a range that is greater than an amplitude of the input voltage.