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:
Oct. 28, 1997
Filed:
Apr. 08, 1996
Seppo Kivela, Salo, FI;
Nokia Mobile Phones Ltd., Salo, FI;
Abstract
The invention relates to a method for reducing power consumption in an electronic device which includes a voltage regulator that has a transistor (T1) connected in series as regards the load current. The invention also relates to such a regulator and an electronic device using such a regulator. The base current (Ib) of the series transistor (T1) of the regulator is arranged to have different values according to how big a load current is required of the regulator. For that purpose, the regulator includes an extra intermediate input (Vsx) which switches the base current (Ib) to be conducted through an alternative current path (Re2, D1, T4) when the maximum load current is required.