Title:
CURRENT CONTROL CIRCUIT
Document Type and Number:
Japanese Patent JP3570033
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a current control system capable of surely supplying a prescribed quantity of current without receiving the influence of temperature change.
SOLUTION: A chopper part 10 is provided with a function to supply the current to coils L1-L3. A CPU 60 transfers an on/off signal to instruct whether or not the current should be permitted to flow on the coils L1-L3 to individual switch parts 20-40. The individual switch parts 20-40 control whether or not the current should be permitted to flow according to the on/off signal when the chopper part 10 supplies the current to the coils L1-L3. A current detecting part 50 detects the sum of the current on the coils L1-L3, and reports a detection result to the CPU 60. The CPU 60 calculates the duty of a chopper signal based on a current value detected by the current detecting part 50, and transmits the chopper signal to the chopper part 10. The chopper part 10 supplies the current to the coils L1-L3 according to the chopper signal.
Inventors:
Kota Otoshi
Application Number:
JP22024795A
Publication Date:
September 29, 2004
Filing Date:
August 29, 1995
Export Citation:
Assignee:
KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
International Classes:
H02J1/00; G05F1/56; (IPC1-7): G05F1/56; H02J1/00
Domestic Patent References:
| JP63095721A | ||||
| JP59099996A | ||||
| JP56072718A | ||||
| JP3070618U |
Attorney, Agent or Firm:
Yoshiyuki Osuga