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Generation and Coherent Control of Pulsed Quantum Frequency Combs

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An All-Digital Fast Tracking Switching Converter with a Programmable Order Loop Controller for Envelope Tracking RF

Nijad Anabtawi¹, Rony Ferzli², Haidar M Harmanani³

¹Intel Corporation School of Electrical, Computer & Energy Engineering Arizona State University.

IEEE International Symposium on Circuits and Systems Proceedings. IEEE International Symposium on Circuits and Systems

|September 19, 2017

Summary

This summary is machine-generated.

This study introduces a novel digital power converter for radio frequency power amplifiers (RFPA). Its programmable design meets diverse wireless standards, eliminating bulky filters and improving efficiency.

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Area of Science:

Electrical Engineering
Power Electronics
Integrated Circuits

Background:

Radio Frequency Power Amplifiers (RFPA) require efficient power management solutions.
Multi-standard wireless communication necessitates adaptable power converters.
Traditional switched-mode power converters often rely on large passive filters.

Purpose of the Study:

To present a novel step-down, switched-mode power converter for multi-standard envelope tracking RFPA.
To eliminate the need for bulky passive output filters using a programmable sigma-delta modulator.
To meet stringent output ripple, sideband noise, and spectral emission requirements of various wireless standards.

Main Methods:

Utilized a programmable order sigma-delta modulator (1st to 4th order loop filters).
Implemented an entirely digital design in a 14nm bulk CMOS process.
Configured modulator filter order and converter sampling frequency for compliance.

Main Results:

Achieved output voltage regulation from 0.5V to 2.5V with a 3.3V input.
Operated at a nominal switching frequency of 150MHz.
Reached a maximum efficiency of 94% at 1.5W output power.

Conclusions:

The proposed digital converter effectively supports multi-standard RFPA applications.
Programmable filter order and sampling frequency enable compliance with diverse wireless standards.
The design offers a compact and efficient power management solution for modern wireless devices.