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:
Dec. 13, 2016
Filed:
Aug. 26, 2014
Dialog Semiconductor Gmbh, Kirchheim/Teck-Nabern, DE;
Hidenori Kobayashi, Kawasaki, JP;
Dialog Semiconductor (UK) Limited, Reading, GB;
Abstract
An apparatus and method for a multi-phase switch regulator with improved efficiency is disclosed. The device has parallel implementations for the different phases comprising a driver, a current sense variable gain amplifier, a current share circuit, a pulse width modulation (PWM) control circuit, a trim network, and an inductor. A method is disclosed of providing a system with current sharing function comprising a driver circuit, a current sense circuit, a current share circuit, a PWM control circuit and a trim circuit, providing a current sense circuit for each segment of a driver circuit, sensing a signal using a current sense circuit for each segment of a driver circuit, comparing the output of the current sense circuit, providing the current error information to a PWM controller, generating a PWM drive signal of each phase, and finally, equalizing the output of the current sense amplifier. Other methods that utilize dummy output stages and low pass filter feedback is disclosed.