Title:
INDUCTIVE LOAD DRIVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/098593
Kind Code:
A1
Abstract:
Provided is an inductive load drive device having a simple structure and capable of reducing a current ripple against an inductive load having a low time constant. When a direction indication signal (DIR) indicates a first direction, a signal to connect the other end (5B) of an inductive load (5) to a second power source (4) is output as a second control signal (CONT2), in addition, a signal to connect the one terminal (5A) of the inductive load (5) to a first power source (3) is output as a first control signal (CONT1) after a first predetermined delay time (T1) has passed since the first current detection value (VOUT1) became less than the reference value (REF) of a conducting current, and a signal to connect the one end (5A) of the inductive load (5) to the second power source (4) is output as a first control signal (CONT1) after a second predetermined delay time (T2) has passed since the first current detection value (VOUT1) became equal to or more than the reference value (REF) of the conducting current.
Inventors:
ARISAWA DAIJIRO
YAMADA MASAKO
YAMADA MASAKO
Application Number:
PCT/JP2011/002791
Publication Date:
July 26, 2012
Filing Date:
May 19, 2011
Export Citation:
Assignee:
PANASONIC CORP (JP)
ARISAWA DAIJIRO
YAMADA MASAKO
ARISAWA DAIJIRO
YAMADA MASAKO
International Classes:
H02M3/155; G05F1/00; H02M7/48; H02P8/12; H02M1/00
Foreign References:
| JPH099691A | 1997-01-10 | |||
| JPS4892836A | 1973-12-01 |
Attorney, Agent or Firm:
PATENT CORPORATE BODY ARCO PATENT OFFICE (JP)
Patent business corporation Owner old patent firm (JP)
Patent business corporation Owner old patent firm (JP)
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