학술논문
Design of control and protection schemes for MCT converters
Document Type
Conference
Author
Source
Proceedings of 1994 37th Midwest Symposium on Circuits and Systems Midwest symposium on circuits and systems Circuits and Systems, 1994., Proceedings of the 37th Midwest Symposium on. 2:1261-1264 vol.2 1994
Subject
Language
Abstract
The paper presents the complete control circuit of a phase-controlled rectifier using the MOS Controlled Thyristor (MCT) as the power switch. The circuit generates gate pulses for turning the MCT on and off, for a set of firing and extinction angles. It is possible to operate the converter at lagging, leading, or unity power factor. The control circuit includes a scheme for protecting the MCT against overcurrent. Experimental waveforms of the control signals as well as the load voltage and load current are shown. Frequency spectra of the load voltage and load current are also presented.