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. 25, 2011
Filed:
Jul. 24, 2006
Richard Hellberg, Huddinge, SE;
Tony Fondén, Spånga, SE;
Richard Hellberg, Huddinge, SE;
Tony Fondén, Spånga, SE;
Telefonaktiebolaget L M Ericsson (Publ), Stockholm, SE;
Abstract
The present invention relates to a method for controlling an amplifier unit having at least one drive signal input connection, at least one power supply voltage input connectionand an output connection. The amplifier unit comprises at least one amplifier, and the method comprises the steps of: feeding each amplifier by a drive signal from said at least one drive signal input connection, and feeding each amplifier by a power supply voltage from said at least one power supply voltage input connection, whereby said amplifier unit has defined output characteristics at the output connectionand a predetermined power supply voltage at a maximum RF output power for a RF signal. The method further comprises the steps of: operating at least one amplifier with RF output voltage characteristics to obtain a reduced shunt loss, compared to a reference shunt loss, at the output connection. The reference shunt loss is obtained when operating each amplifier as a class B amplifier having the defined output characteristics at the output connectionand the predetermined power supply voltage at a maximum RF output power for the RF signal, and modulating the power supply voltage to each amplifier to reduce excessive voltage drop over the amplifier.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile