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. 12, 2013
Filed:
May. 18, 2010
Tsung-wei Huang, Taipei, TW;
Shui-mu Lin, Taichung, TW;
Chueh-kuei Jan, Chupei, TW;
Huan-chien Yang, Yonghe, TW;
Tsung-Wei Huang, Taipei, TW;
Shui-Mu Lin, Taichung, TW;
Chueh-Kuei Jan, Chupei, TW;
Huan-Chien Yang, Yonghe, TW;
Richtek Technology Corporation, HsinChu, TW;
Abstract
The present invention discloses an adaptive two-stage voltage regulator and a method for controlling the same. The adaptive two-stage voltage regulator includes: a voltage regulator for converting an input voltage (Vin) to a middle voltage (Vm), wherein Vin≦Vin_max; a linear regulator for converting the middle voltage to an output voltage (Vout); and a middle voltage controller for adjusting the middle voltage according to (1) an input voltage indicator and one of (2a) an output voltage indicator and (2b) a predetermined reference signal, such that when Vin≦Vout, Vm=Vout+ΔV and (Vout+ΔV)<Vin_max.