An analog macromodel of the SG1525A PWM for use with SPICE 2G.6 simulators

Author

Raney, Carolyn W.

Author_Institution

Sandia Nat. Lab., Albuquerque, NM, USA

fYear

1992

Firstpage

1546

Abstract

An analog macromodel for the SG1525A PWM (pulse width modulator) has been developed that is compatible with SPICE2G.6 and PSPICE version 5.1 analog simulators. The SG1525A PWM integrated circuit is a sophisticated design which provides accurate performance while lowering the external parts count when used to implement all types of switching power supplies. The analog macromodel exhibits no convergence problems, simulates realistic line and load responses, frequency response, and output voltage levels, and has time domain capability. Model development and a comparison of macromodel performance with actual measurements are discussed

Keywords

SPICE; digital simulation; modulators; pulse width modulation; switched mode power supplies; PSPICE version 5.1 analog simulators; SG1525A PWM; SPICE 2G.6 simulators; analog macromodel; external parts count; frequency response; line responses; load responses; macromodel performance; output voltage levels; pulse width modulator; switching power supplies; time domain capability; Circuit simulation; Convergence; Frequency response; Power supplies; Pulse width modulation; Pulsed power supplies; SPICE; Space vector pulse width modulation; Switching circuits; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1992., Proceedings of the 35th Midwest Symposium on

Conference_Location

Washington, DC

Print_ISBN

0-7803-0510-8

Type

conf

DOI

10.1109/MWSCAS.1992.271065

Filename

271065