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:
Oct. 04, 2016
Filed:
Jul. 27, 2015
Stmicroelectronics (China) Investment Co. Ltd, Shanghai, CN;
Zhenghao Cui, Beijing, CN;
STMICROELECTRONICS (CHINA) INVESTMENT CO. LTD, Shanghai, CN;
Abstract
An oscillator circuit operates to selectively charge and discharge a capacitance with a charging circuit. An inverting circuit includes a first transistor, second transistor, third transistor and fourth transistor having source-drain paths coupled in series. The second and third transistors are connected as an inverter with an input coupled to the capacitance and an output. A feedback loop couples the output of the inverter to an input of the charging circuit. A first shunting transistor is configured to selective shunt across the first transistor in response to a first logic state of a feedback signal in the feedback path. A second shunting transistor is configured to selective shunt across the fourth transistor in response to a second logic state of the feedback signal in the feedback path.