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.

Date of Patent:
May. 05, 2020

Filed:

Jan. 16, 2019
Applicant:

Renesas Electronics Corporation, Tokyo, JP;

Inventor:

Koichi Takeda, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 3/00 (2006.01); H03K 3/012 (2006.01); H03K 19/0185 (2006.01); H03K 3/037 (2006.01);
U.S. Cl.
CPC ...
H03K 3/012 (2013.01); H03K 3/037 (2013.01); H03K 19/018521 (2013.01);
Abstract

A level shift circuit includes a pulse signal generation unit generating first and second pulse signals with respect to an input signal, a first level conversion unit converting the first pulse signal at a first voltage to a third pulse signal at a second voltage, a second level conversion unit converting the second pulse signal at the first voltage to a fourth pulse signal at the second voltage, and a flip flop circuit making an output signal at the second voltage rise according to the third pulse signal, and making the output signal at the second voltage fall according to the fourth pulse signal. The pulse signal generation unit compares the input signal with the output signal of the flip flop circuit, and generates the first pulse signal when the input signal rises and the second pulse signal when the input signal falls, based on a non-matching comparison result.


Find Patent Forward Citations

Loading…