Inverter for conversion of electrical energy

Matrix converter circuit and commutating method

Matrix converter control system

Method and apparatus for controlling circulating-current type cy

Method and apparatus for controlling the load current of a pulse

Method and apparatus for firing angle control of series connecte

Method and apparatus for stabilized integral control of static p

Method and arrangement for charging intermediate circuit of...

Method for controlling a matrix converter

Method for thermal protection of frequency converter and a...

Method of commutation of current by bi-directional switches...

Modular AC-AC variable voltage and variable frequency power conv

Modulation method and apparatus for static power frequency chang

Optically-triggered half-frequency AC converter

Parallel multiplex matrix converter

Phase angle balancing circuit for a variable speed constant freq

Phase stabilized high frequency link power converter apparatus h

Polarity-and-load independent circuit arrangement for converting

Polyphase a.c. motor supplied with power via d.c. power supply

Polyphase frequency converter with individually current-regulate