Electric power conversion systems – Current conversion – Using semiconductor-type converter
Patent
1999-06-04
2000-01-25
Han, Y. J.
Electric power conversion systems
Current conversion
Using semiconductor-type converter
363 16, 363 17, H02M 7537
Patent
active
060184744
ABSTRACT:
A capacitive element is charged with no excessive flow of current so that a potential to effect the operation of a switching element can be obtained with stability. A capacitor (30) is charged with a circulating current from a load (40). On the charging path, a resistor (21) is provided in series to prevent an excessive flow of the charging current. Between terminals (V.sub.B, V.sub.S) of an upper-arm driving circuit (25) which receive a voltage to effect the operation of an IGBT (34) of an upper arm, the capacitor (30) and the resistor (21) are provided to suppress a decrease in potential (V.sub.B) at the terminal (V.sub.B).
Hiyama Kazuaki
Hussein Khalid Hassan
Iwagami Tooru
Iwasaki Mitsutaka
Han Y. J.
Mitsubishi Denki & Kabushiki Kaisha
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