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. 17, 2016

Filed:

Mar. 02, 2015
Applicant:

Abov Semiconductor Co., Ltd., Seoul, KR;

Inventor:

Chang Min Kim, Seoul, KR;

Assignee:

ABOV SEMICONDUCTOR CO., LTD., Cheongwon-gun, Chungcheongbuk-do, KR;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03K 3/017 (2006.01); H03K 5/05 (2006.01); H03K 7/08 (2006.01); H03K 5/06 (2006.01);
U.S. Cl.
CPC ...
H03K 5/05 (2013.01); H03K 5/06 (2013.01); H03K 7/08 (2013.01);
Abstract

A pulse width modulation (PWM) signal generation circuit and method are disclosed herein. The PWM signal generation circuit includes an integer part pulse generation circuit, and a fractional part pulse generation circuit. The integer part pulse generation circuit generates an integer part pulse using the integer part of the digitized value of a duty cycle, i.e., the ratio of the time during which any one of high and low levels is maintained to the period of a PWM signal. The fractional part pulse generation circuit generates the PWM signal using the integer part pulse and the fractional part of the digitized value of the duty cycle.


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