Title:
電圧生成装置
Document Type and Number:
Japanese Patent JP4577331
Kind Code:
B2
Abstract:
A voltage generator used to generate a voltage for driving a vehicle fuel injector. The voltage generator comprises a coil (L5); a current value set means (12,26) for setting the target current value of the energization current through the coil to a first current value or to a second current value less than the first current value, according to a predetermined set condition; a current value measurement means (27,R3); a switch means (28,29,32,13a) for determining whether a measured current value is less than the target current value, the switch means allowing the energization current to flow through the coil when the measured actual current value is less than the set target current value; an output voltage generating means (13) having a capacitor (C1) and for generating an output voltage by charging the capacitor by counterelectromotive force produced in the coil; a voltage value measurement means (R2) for measuring a voltage value of the output voltage; and a switch control means (28,30,32b) for determining whether the measured voltage value is less than a predetermined reference voltage value, the switch control means enabling the switch means when the measured voltage value is less than the reference voltage value.
Inventors:
Yuichiro Matsuura
Application Number:
JP2007165109A
Publication Date:
November 10, 2010
Filing Date:
June 22, 2007
Export Citation:
Assignee:
株式会社デンソー
International Classes:
F02D41/20
Attorney, Agent or Firm:
Nagoya International Patent Service Corporation