Microprocessor-controlled GTO two-quadrant chopper

Author

Zaki, Aziza M.

Author_Institution

Electron. Res. Inst., Cairo, Egypt

fYear

1990

fDate

12-14 Aug 1990

Firstpage

1183

Abstract

A GTO two-quadrant DC-DC converter where the firing pulses are generated and controlled by a microprocess-based logic was presented. Once the ON and OFF periods for the GTO thyristors are decided, the generation of the firing pulses is completely achieved by the programmable timer, leaving the processor free for system monitoring and computations for the control algorithm. The system has many advantages. The use of the GTO thyristors for the power circuit resulted in higher reliability, fewer components, and ease of power control. With the microprocessor, the system is more reliable and more versatile as the software program is easily altered to take into account any control parameter required

Keywords

choppers (circuits); computerised control; power convertors; thyristor applications; GTO thyristors; GTO two-quadrant DC-DC converter; firing pulses; microprocess-based logic; microprocessor control; power circuit; programmable timer; software program; Choppers; Circuits; Control systems; DC-DC power converters; Logic; Monitoring; Power control; Power system reliability; Pulse generation; Thyristors;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1990., Proceedings of the 33rd Midwest Symposium on

Conference_Location

Calgary, Alta.

Print_ISBN

0-7803-0081-5

Type

conf

DOI

10.1109/MWSCAS.1990.140938

Filename

140938