Title:
REGENERATIVE POWER ABSORBING DEVICE
Document Type and Number:
Japanese Patent JPS63112233
Kind Code:
A
Abstract:
PURPOSE:To absorb the excessive regenerative power with an inexpensive device by connecting a serial circuit of multiple capacitors between a feeder line and the ground to divide the line voltage and connecting serial circuits of current interrupting means and resistors in parallel with individual capacitors. CONSTITUTION:A serial circuit of an upper capacitor 30A and a lower capacitor 30B as input capacitors is connected between a feeder line of the high voltage, e.g., 1,500V, and the ground to divide the line voltage into two. Load resistors 31-34 are connected in series with choppers 41-44 as four pairs of current interrupting means respectively, two pairs out of these four pairs of the serial circuits are connected in parallel with the upper capacitor 30A and the other two pairs are connected in parallel with the lower capacitor 30B respectively. The two pairs of the choppers 41, 42 are operated with a phase difference of 180 deg., and the two pairs of the choppers 43, 44 with a phase difference of 180 deg. respectively. A phase difference of 90 deg. is set between the upper chopper 41 and the lower chopper 43.
Inventors:
YOSHIKAWA HARUKI
KINOSHITA SHIGENORI
KINOSHITA SHIGENORI
Application Number:
JP25750286A
Publication Date:
May 17, 1988
Filing Date:
October 29, 1986
Export Citation:
Assignee:
FUJI ELECTRIC CO LTD
International Classes:
B60M3/06; (IPC1-7): B60M3/06
Domestic Patent References:
| JPS6194832A | 1986-05-13 | |||
| JPS513968A | 1976-01-13 |
Attorney, Agent or Firm:
Iwao Yamaguchi
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