Title:
POWER CONTROL DEVICE AND POWER CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2020/136702
Kind Code:
A1
Abstract:
This power control device 100 comprises: a current detector 31 which measures a combined current value obtained by combining currents flowing through a plurality of loads 1-4; and an output calculation unit 11 which calculates a correction value, which is a value obtained by dividing the total value of a product of the operation output value for each of the loads 1-4 and the rated current value of each of the loads 1-4 by the combined current value obtained by the current detector 31, and performs power supply control for each of the loads 1-4 on the basis of a corrected operation output value that is a product of the operation output value for each of the loads 1-4 and the correction value, thereby being capable of performing a heating control or a cooling control with reduced influence of fluctuations in load characteristics, in a system that heats or cools a workpiece by using a plurality of loads.
Inventors:
YURUGI NORIKAZU (JP)
MURATA TETSUYA (JP)
MURATA TETSUYA (JP)
Application Number:
PCT/JP2018/047469
Publication Date:
July 02, 2020
Filing Date:
December 25, 2018
Export Citation:
Assignee:
RKC INSTRUMENTS INC (JP)
International Classes:
H05B3/00
Domestic Patent References:
| WO2017109954A1 | 2017-06-29 |
Foreign References:
| JP2003178855A | 2003-06-27 | |||
| JPH0478796U | 1992-07-09 |
Attorney, Agent or Firm:
KATO, Masanobu et al. (JP)
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