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. 06, 2018
Filed:
May. 09, 2014
Nec Corporation, Tokyo, JP;
Kiyohiko Takahashi, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
A power supply circuit () includes: a linear amplifier () for generating a linear amplification signal based on an input signal; a first switching amplifier () for generating a first switching amplification signal of a first frequency band based on the linear amplification signal; a second switching amplifier () for generating a second switching amplification signal of a second frequency band based on the first switching amplification signal; and a power supply unit () for supplying a combined signal in which the linear amplification signal and the first and second switching amplification signals are combined to an external circuit as a power supply. It is therefore possible to improve the power efficiency.