When my classmate report about cycloconverters. He discussed about different classifications and types of cycloconverters. He also discussed how Single-phase to Single-Phase Cycloconverters operate. But when he approached Three-Phase to Single-Phase and Three-Phase to Three-Phase Cycloconverter's operations, he discussed it not very well leading to a lot of confusions. Almost all of the answers to those confusions was answered through Internet except one:
Is there any Single-Phase to Three-Phase Cycloconverter existing? How does it operate?