Title: Pulse width modulating device
Application Number: 200610168301 Application Date: 2006.12.20
Publication Number: 1976227 Publication Date: 2007.06.06
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H03K7/08;G01R35/00;G01R35/04;G01R11/16
Applicant(s) Name: Beijing Zhongxing Microelectronic Co., Ltd. Address:
Inventor(s) Name: Fan Zhijun
Attorney & Agent: wangyi bin wangqi
Abstract:
    A modulation device of pulse width is prepared as starting up counting by pulse interval counter when input pulse is entered, dividing counted value by two and outputting divided value to pulse width threshold register, outputting said threshold to comparator, updating pulse width threshold according to 1/2 pulse interval counting value and pulse width of output pulse when input pulse is entered, starting up counting when input pulse is entered and outputting counted value to comparator, comparing counted value of pulse width and threshold of pulse width by comparator for obtaining output pulse.
Time: 10
<- Previous Patent:Display apparatus   |  Next Patent:On failure detection apparatus of... ->