Title:
POWER CONVERTER
Document Type and Number:
Japanese Patent JPS609382
Kind Code:
A
Abstract:
PURPOSE:To enable to stably operate a power converter even if the voltage variation rate of an input power source is large by providing a diode in a direction for stopping the regenerative power between the converter and a load and varying the value of a resistor connected in parallel with the diode. CONSTITUTION:A diode 4 is provided in a direction for stopping the regenerative power between a converter 3 connected in anti-parallel with a 3-phase thyristor bridge capable of flowing currents of both normal and reverse directions and a load 9. At least two resistors 5, 6 connected in series are provided in parallel with the diode 4. The combined resistance value of the resistors 5, 6 is varied by a switch 7, and a voltage drop is loaded by the resistors 5, 6 when an AC power source voltage drops.
Inventors:
HIRATA AKIO
Application Number:
JP11638883A
Publication Date:
January 18, 1985
Filing Date:
June 28, 1983
Export Citation:
Assignee:
TOSHIBA KK
International Classes:
H02M7/17; H02M7/12; H02M7/48; H02M7/75; H02M7/757; (IPC1-7): H02M7/75; H02M7/17
Domestic Patent References:
| JPS5321727A | 1978-02-28 | |||
| JPS5653578A | 1981-05-13 |
Attorney, Agent or Firm:
Takehiko Suzue
Next Patent: JPS609383