H - Electricity – 02 – M
Patent
H - Electricity
02
M
H02M 7/42 (2006.01) H02M 7/48 (2006.01)
Patent
CA 2053381
A power conversion apparatus comprises an inverter circuit for converting DC power into AC power which has a first frequency; a transformer connected to the inverter circuit; a cyclo converter circuit having a bidirectional switch capable of controlling a direction in which an electric current passes and converting the output from the transformer into AC power which has a second frequency; and a switching signal generating circuit for generating a switching signal for controlling the polarity of the bidirectional switch of the cyclo converter circuit in such a manner that the output voltage from the inverter circuit does not encounter a short circuit.
Convertisseur de courant comportant un circuit inverseur pour transformer le courant continu en courant alternatif à une première fréquence donnée; un transformateur est relié au circuit inverseur; un circuit convertisseur de fréquence doté d'un commutateur bidirectionnel permet de contrôler la direction du courant électrique et de convertir le courant le sortie du transformateur en courant alternatif d'une fréquence différente de la première fréquence; un circuit signalisateur de commutation permet de contrôler la polarité du commutateur bidirectionnel du circuit convertisseur de fréquence de manière à éliminer tout risque de court-circuit au niveau de la tension de sortie du circuit inverseur.
Sanada Kazunori
Sashida Nobuo
Marks & Clerk
Mitsubishi Denki Kabushiki Kaisha
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