Invention Grant
- Patent Title: Drive circuit, and control method of drive circuit
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Application No.: US15412477Application Date: 2017-01-23
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Publication No.: US10044343B2Publication Date: 2018-08-07
- Inventor: Akira Abe
- Applicant: SEIKO EPSON CORPORATION
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Priority: JP2016-034988 20160226
- Main IPC: H03B1/00
- IPC: H03B1/00 ; H03K3/00 ; H03K3/012 ; B41J2/045 ; H01L41/04 ; H01L41/09 ; H03K4/94

Abstract:
A drive circuit includes a control signal generator configured to generate a control signal based on a drive signal and a source drive signal, and an amplifier including a high-side transistor and a low-side transistor controlled based on the control signal. The amplifier is configured to output the drive signal from an output terminal to drive a capacitive load during a first period in which a voltage of the drive signal changes to be higher than or equal to a first voltage per unit time and a second period in which the voltage changes to be lower than the first voltage or does not change per unit time. The first period includes a period in which one of the high-side and the low-side transistors performs a switching operation. The second period includes a period in which the one of the high-side and the low-side transistors performs a linear operation.
Public/Granted literature
- US20170250679A1 DRIVE CIRCUIT, AND CONTROL METHOD OF DRIVE CIRCUIT Public/Granted day:2017-08-31
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