Synthesis of a linearizing pulsewidth modulator for three-phase inverters

Author

Chen, Jun ; Ngo, Khai D T

Author_Institution

Texas Instrum. Inc., Dallas, TX, USA

Volume

1

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

120

Abstract

A linearizing pulsewidth modulator (LPWM) is presented that linearizes the control-to-output characteristic of three-phase inverters employing single-pole/multiple-throw switches. The paper shows how such a LPWM can be realized using integrators with hold and reset, which are familiar building blocks in mixed-signal integrated circuits. The theory is verified by experimental data obtained from a 1 kW three-phase boost inverter switched at 24 kHz. The line voltage regulation of the prototype is better than 93%

Keywords

DC-AC power convertors; PWM invertors; linearisation techniques; mixed analogue-digital integrated circuits; modulators; switching circuits; voltage regulators; 1 kW; 24 kHz; LPWM; hold and reset circuits; integrators; line voltage regulation; linearizing pulsewidth modulator; mixed-signal integrated circuits; single-pole/multiple-throw switches; three-phase boost inverters; DC-DC power converters; Frequency; Instruments; Pulse inverters; Pulse modulation; Pulse width modulation converters; Pulse width modulation inverters; Switches; Virtual colonoscopy; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2001. PESC. 2001 IEEE 32nd Annual

Conference_Location

Vancouver, BC

ISSN

0275-9306

Print_ISBN

0-7803-7067-8

Type

conf

DOI

10.1109/PESC.2001.954005

Filename

954005