Patent · US Active

Pulse width modulation for switching amplifier

US8841950B2 · kind B2 · utility

1Cited by

2References

23Claims

0Family size

Assignee

ERICSSON MODEMS SA · CH

Inventors

Shyam Somayajula · Bengaluru, IN
Ankit Seedher · Kanchinakote, IN
Raja J. Prabhu · Bengaluru, IN

Key dates

Filing date	Oct 8, 2010
Grant date	Sep 23, 2014
Priority date	—
Expiry date	Oct 8, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH03F2200/384
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

A device and a method for implementing pulse width modulation for switching amplifiers (120) is described herein. In one embodiment, the device includes a sampling signal generator (202) to generate a sampling signal (208) and a modulation unit (102) operatively coupled to the sampling signal generator (202). The modulation unit (102) generates differential pulse width modulated waveforms based on the sampling signal (208) and differential input signals (220-1 and 220-2) such that at least one differential pulse width modulated waveform has a duty cycle equivalent to a pre-determined non-zero minimum pulse width at all values of the differential input signals (220-1 and 220-2).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.