- Patent Title: Liquid discharging apparatus, head unit, integrated circuit device for capacitive load driving, capacitive load driving circuit, and control method of liquid discharging apparatus
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Application No.: US15336162Application Date: 2016-10-27
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Publication No.: US10005277B2Publication Date: 2018-06-26
- Inventor: Tetsuo Takagi
- Applicant: Seiko Epson Corporation
- Applicant Address: JP
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: JP2014-251763 20141212
- Main IPC: B41J2/045
- IPC: B41J2/045 ; H02M3/07 ; H03K17/687
Abstract:
There is provided a driving circuit for driving a capacitive load including: a modulation portion which generates a modulation signal pulse-modulated from a source signal; a gate driver which generates an amplification control signal based on the modulation signal; a transistor which generates an amplification modulation signal amplified from the modulation signal based on the amplification control signal; a low pass filter which demodulates the amplification modulation signal and generates a driving signal; a feedback circuit which sends back the driving signal to the modulation portion; a boosting circuit which supplies a voltage which has been boosted.
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