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:
Feb. 14, 2017
Filed:
May. 06, 2014
Stmicroelectronics, Inc., Coppell, TX (US);
Stmicroelectronics S.r.l., Agrate Brianza, IT;
Tom Youssef, Frisco, TX (US);
Alessandro Gasparini, Cusano Milanino, IT;
Yamu Hu, Allen, TX (US);
Naren K. Sahoo, Frisco, TX (US);
Anthony Junior Casillan, Irving, TX (US);
STMICROELECTRONICS, INC., Coppell, TX (US);
STMICROELECTRONICS S.R.L., Agrate Brianza, IT;
Abstract
A modulated digital input signal is passed through a conditioning circuit to generate a first input signal. An error amplifier circuit receives the first input signal and a second input signal, and controls the operation of a MOS transistor to generate an output signal that is current modulated. The output signal is sensed to generate a feedback signal. A switching circuit selectively applies the feedback signal as the second input signal in response to a transition of the modulated digital input signal from a first logic state to a second logic state. The switching circuit alternatively selectively applies a fixed reference signal as the second input signal to the error amplifier in response to a transition of the modulated digital input signal from the second logic state to the first logic state.