Invention Grant
- Patent Title: Capacitive load driving circuit and liquid droplet jetting apparatus
- Patent Title (中): 电容负载驱动电路和液滴喷射装置
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Application No.: US12401001Application Date: 2009-03-10
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Publication No.: US08109587B2Publication Date: 2012-02-07
- Inventor: Sunao Ishizaki
- Applicant: Sunao Ishizaki
- Applicant Address: JP Tokyo
- Assignee: Fuji Xerox Co., Ltd.
- Current Assignee: Fuji Xerox Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Fildes & Outland, P.C.
- Priority: JP2008-215666 20080825
- Main IPC: B41J29/38
- IPC: B41J29/38 ; G05F1/00

Abstract:
A capacitive load driving circuit including: a filter including an inductor to which an analog driving signal is input, and a capacitor with a fixed capacitance where one electrode is connected the inductor and other electrode grounded; a plurality of capacitive loads connected in parallel to the capacitor, and driven in accordance with the analog driving signal; a conversion section converting a load voltage to a digital signal; a signal processing section generating a predetermined signal for driving the capacitive load, deriving a signal that represents a magnitude of an electric current flowing to the capacitive load from the digital signal and a digital driving signal, subtracting the signal from the predetermined signal, and outputting the subtracted signal as the digital driving signal; and a switching section generating the analog driving signal by performing switching based on the digital driving signal, and outputting the analog driving signal.
Public/Granted literature
- US20100045714A1 CAPACITIVE LOAD DRIVING CIRCUIT AND LIQUID DROPLET JETTING APPARATUS Public/Granted day:2010-02-25
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