Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1991-07-24
1992-11-24
Howell, Janice A.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307254, 307572, 307577, 307630, 307633, 363 65, H03K 1700, H03K 1706, H03K 1716, H03K 1751
Patent
active
051665417
ABSTRACT:
A switching apparatus including a plurality of semiconductor switching elements each of which has a pair of main circuit electrodes and a control electrode. Each load-side electrode of the pair of main circuit electrodes of each semiconductor switching element is connected in common and the control electrodes are controlled by a common control power supply so as to control the conductance between the main circuit electrodes. A transformer having a first coil and a second coil of the same polarity as the first coil is connected to each of the semiconductor switching elements. The first coil is inserted between the control signal source and the load-side main circuit electrode, and the second coil is inserted between the control signal source and the control electrode.
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Cunningham Terry D.
Howell Janice A.
Mitsubishi Denki & Kabushiki Kaisha
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