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:
Jan. 22, 2008
Filed:
Oct. 07, 2004
Karsten Nielsen, Helsingor, DK;
Lars Michael Fenger, Glostrup, DK;
Karsten Nielsen, Helsingor, DK;
Lars Michael Fenger, Glostrup, DK;
Bang & Olufsen Icepower A/S, Lyngby, DK;
Abstract
A power conversion system comprising at least one Pulse Modulated Amplifier (), including a pulse modulator for generating a pulse modulated signal based on a reference input (v), a switching power stage arranged to amplify the pulse modulated signal, and a control system arranged to compensate for power supply voltage variations, and a voltage supply () providing drive voltage (V) to each amplifier, wherein said voltage supply () is provided with said input reference (v), and arranged to provide a first drive voltage component (V) tracking an amplified absolute value of the input reference (v). Pulse area modulation according to the invention will result in improved efficiency and at the same time ensure lower levels of EMI, as the mean amplitude of the PAM signal is lowered.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile