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:
Jun. 04, 2002
Filed:
Apr. 03, 2001
Vadim V. Ivanov, Tucson, AZ (US);
Shilong Zhang, Tucson, AZ (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
Bias circuitry of an electronic circuit is disabled by interrupting a compensated feedback loop in a bias control circuit that, when enabled, produces a predetermined bias voltage (V ) applied to the bias circuitry. A trickle charging current is conducted into a compensation capacitor of the feedback loop while the bias circuitry is disabled, to charge the compensation capacitor to a predetermined threshold voltage which causes the feedback loop and bias control circuit, when enabled, to produce the predetermined voltage needed by the bias circuitry to bias the CMOS operational amplifier for normal operation. Next, the feedback loop is enabled. Since the compensation capacitor is already precharged to the predetermined voltage, the bias circuitry of the CMOS operational amplifier is very quickly enabled from the disabled condition.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile