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:
May. 08, 2012
Filed:
Sep. 03, 2010
Rik Jos, Nijmegen, NL;
Rik Jos, Nijmegen, NL;
NXP B.V., Eindhoven, NL;
Abstract
A switching amplifier () comprising: a switch () configured to electrically connect and disconnect a first pin () of the switch () to a second pin () of the switch () in accordance with a pulse width modulated input signal (). The second pin () is connected to a ground connector (). The switching amplifier also comprises a feed inductor () connected between a voltage supply connector () and the first pin () of the switch (), and a circuit () comprising a variable component having a variable imaginary impedance. The circuit () is connected between the first pin () of the switch () and an output connector of the amplifier (. The switching amplifier further comprising a controller () configured to generate a control signal () for the circuit () such that the variable component of the circuit is adjustable in accordance with the duty cycle of the pulse width modulated input signal ().