The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 19, 2022
Filed:
Apr. 13, 2021
Realtek Semiconductor Corporation, Hsinchu, TW;
Tsung-Yen Liu, Hsinchu, TW;
REALTEK SEMICONDUCTOR CORPORATION, Hsinchu, TW;
Abstract
The present invention discloses a voltage level conversion circuit. A first and a second N-type driving transistors turn on when a first power voltage source supplies a high state voltage. A voltage transmission circuit transmits a first and a second input voltages having opposite levels to sources of the first and the second N-type driving transistors. A current source operates according to a second supply voltage source and has a first and a second output terminals. A first and a second connection transistors respectively couple between the drain of the first N-type driving transistor and the second output terminal and between the drain of the second N-type driving transistor and the first output terminal. The first and the second connection transistors turn on and off when the first voltage supply source supplies the high state voltage and a low state voltage.