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:
Mar. 20, 1990

Filed:

Feb. 15, 1989
Applicant:
Inventors:

Dhaval J Brahmbhatt, San Jose, CA (US);

Mehrdad Mofidi, Fremont, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B / ;
U.S. Cl.
CPC ...
331 57 ; 3311 / ;
Abstract

A CMOS ring oscillator includes an odd number of serially connected inverter stages with each stage comprising a CMOS transistor pair. The output of each stage is taken at the common terminal of the CMOS transistor pair with capacitive means shunting the output of each stage to circuit ground. The input of each stage is applied at the gate of the p-channel transistor. A fixed reference voltage, V.sub.REF, is applied to the gate of each n-channel transistor, whereby the discharge of voltage on the capacitive means through the n-channel transistor is independent of supply voltage.


Find Patent Forward Citations

Brahmbhatt, Dhaval. (1990). Cmos ring oscillator having frequency independent of supply voltage (U.S. Patent No. 4910471). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4910471

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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