Title:
ドライバ回路
Document Type and Number:
Japanese Patent JP2013534475
Kind Code:
A
Abstract:
A driver circuit (1) for driving a capacitive load (2) with a drive pulse having a rise time, a predetermined voltage period and a fall time. The driver circuit (1) includes an inductance (6), switches (10, 11, 12), and a transformer (8) having a primary side (8) and secondary side (9). The switches (10, 11, 12) are controlled by a controller (13) to charge the inductance (6) from a power supply (4), and, when the capacitive load (2) is to be driven, to enable a charge path from the inductance (6) to the capacitive load (2) during the rise time, to disable the charge path during the constant peak voltage period and to enable a discharge path via the primary side (8) of the transformer (7) during the fall time. As the capacitive load (2) discharges through the primary side (8) of the transformer (7), charge is induced on the secondary side (9) of the transformer (7) and is used to charge the inductance (6), thereby saving power and enabling a lower voltage power supply to be used.
Inventors:
Pemverse, Michael
Application Number:
JP2013512989A
Publication Date:
September 05, 2013
Filing Date:
May 31, 2011
Export Citation:
Assignee:
GLOBAL INKJET SYSTEMS LIMITED
International Classes:
B41J2/055; B41J2/045; H01L41/04; H01L41/09
Attorney, Agent or Firm:
Hironobu Onda
Makoto Onda
Atsushi Honda
Makoto Onda
Atsushi Honda