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:
Dec. 15, 2015
Filed:
Nov. 30, 2014
Applicant:
Zhengxiang Wang, Suzhou, CN;
Inventor:
Zhengxiang Wang, Suzhou, CN;
Assignee:
FREESCALE SEMICONDUCTOR, INC., Austin, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 3/0231 (2006.01); H03K 4/501 (2006.01); H03K 3/0233 (2006.01); H03K 3/012 (2006.01);
U.S. Cl.
CPC ...
H03K 4/501 (2013.01); H03K 3/0231 (2013.01); H03K 3/0233 (2013.01); H03K 3/012 (2013.01);
Abstract
A relaxation oscillator shares charging current and comparator biasing current between just two current sources, thereby relaxing requirements on total supply current. The resulting reduction in power consumption has no adverse effect on the speed and accuracy of the oscillator. A switching arrangement directs charging and biasing currents between the two current sources and two charging capacitors and their associated comparators.