Title:
POWER REGENERATIVE DEVICE
Document Type and Number:
Japanese Patent JP3240721
Kind Code:
B2
Abstract:
PURPOSE: To reduce the switching loss and the heat generation at the limited operation of a power regenerative device, and lighten the device, and cut down the cost.
CONSTITUTION: This relates to a power regenerator which has a converter 103 and an electrolytic capacitor 104, and regenerates power in an AC power source by switching a semiconductor element 101. This is provided with a detector 105, which detects the regenerated current from the converter 103 to an AC power source 200, and a comparator 106, which outputs a reset signal A by comparing the detected value of the detector 105 with the set value from a limited operation setter 107. Furthermore, this is equipped with a driver 110, which generates a drive signal for igniting the semiconductor 101 one time per period of the AC power source 200, a divider 111, which divides the period of a drive signal into plural sections and outputs it, and a latch part 108, which outputs a switching signal being generated by latching the output signal of the divider 111 and resetting it in every section.
Inventors:
Mitsuhiko Togo
Hiroshi Takubo
Hiroshi Takubo
Application Number:
JP34311992A
Publication Date:
December 25, 2001
Filing Date:
November 30, 1992
Export Citation:
Assignee:
Fuji Electric Co., Ltd.
International Classes:
H02J5/00; H02M7/48; H02M7/797; (IPC1-7): H02M7/797; H02J5/00; H02M7/48
Domestic Patent References:
| JP4222481A | ||||
| JP2303395A |
Attorney, Agent or Firm:
Yuichi Morita