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:
Apr. 28, 2020
Filed:
Dec. 04, 2017
Allegro Microsystems, Llc, Manchester, NH (US);
Vladimir Kravljaca, Manchester, NH (US);
Virag V. Chaware, Nashua, NH (US);
Jesse Lapomardo, Pembroke, NH (US);
Allegro MicroSystems, LLC, Manchester, NH (US);
Abstract
Apparatus including a regulator configured to generate a regulated output and a diagnostic circuit configured to generate a diagnostic signal indicative of whether the regulator is able to maintain regulation is described. The regulator includes an amplifier having a first input responsive to a reference voltage, a second input responsive to a feedback signal associated with the regulated output, and an output at which a control voltage is provided and further includes a pass element controlled by the control voltage and coupled to a node which the regulated output is provided. The diagnostic circuit is responsive to the control voltage and to the reference voltage to generate the diagnostic signal. The regulator may be a voltage regulator or a current regulator and in some embodiments, the diagnostic signal takes the form of a composite signal indicative of whether a voltage regulator and whether a current regulator can maintain regulation.