Title:
CONSTANT CURRENT SUPPLY DEVICE, CONSTANT CURRENT SUPPLY SYSTEM, AND CONSTANT CURRENT SUPPLY METHOD
Document Type and Number:
WIPO Patent Application WO/2017/033437
Kind Code:
A1
Abstract:
In order to supply drive elements with necessary power supply while maintaining a constant current power supply system even in a case where ON/OFF control of a power source or various operation settings of the drive elements are executed at high speed, a constant current supply device 10 is provided with: a constant voltage acquisition means 20 for extracting a constant voltage from a supplied constant current; a conversion means 30 for converting the extracted constant voltage to a drive current of a desired size and outputting same; and a control means 60 for controlling the size of the drive current flowing to a current control element 5k according to control content of n-sets of drive elements 41-4n, current control elements 51-5n, and a drive element 4k, which are connected in parallel to each other, and into which the drive current is inputted.
Inventors:
ARAI NARIHIRO (JP)
Application Number:
PCT/JP2016/003761
Publication Date:
March 02, 2017
Filing Date:
August 18, 2016
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
H04B3/44; H02J1/00
Foreign References:
| JP2010239563A | 2010-10-21 | |||
| JPH11150492A | 1999-06-02 |
Other References:
See also references of EP 3343787A4
Attorney, Agent or Firm:
SHIMOSAKA, Naoki (JP)
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