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IPC

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Application

96116765/09, 1996-08-16

(22)

Actual filing date

1996-08-16

(45)

Published

1998-10-27

(72)

Inventor

Koshcheev L.G.

(73)

Holder

Koshcheev Leonid Grigor'Evich

SEMICONDUCTOR CONVERTER OF THREE-PHASE VOLTAGE TO TRIPLE-FREQUENCY SINGLE-PHASE VOLTAGE Russian patent published in 1998 - IPC

Abstract RU 2121210 C1

FIELD: converter engineering; high-frequency power supplies for induction heaters or power- driven tools. SUBSTANCE: converter has three switches built around thyristors connected in parallel opposition, parallel oscillatory circuit, control unit with electric isolating members in output circuits that provides for shaping short current pulses shifted in time through one sixth of supply voltage fluctuation period. EFFECT: reduced quantity of semiconductor devices and reduced power loss. 2 dwg

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RU 2 121 210 C1

Authors

Koshcheev L.G.

Dates

1998-10-27—Published

1996-08-16—Filed

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