Invention Grant
- Patent Title: Voltage regulator operable to switch between a two-stage structure operation and a three-stage structure operation
- Patent Title (中): 电压调节器可操作以在两级结构操作和三级结构操作之间切换
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Application No.: US12888899Application Date: 2010-09-23
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Publication No.: US08436603B2Publication Date: 2013-05-07
- Inventor: Takashi Imura
- Applicant: Takashi Imura
- Applicant Address: JP Chiba
- Assignee: Seiko Instruments Inc.
- Current Assignee: Seiko Instruments Inc.
- Current Assignee Address: JP Chiba
- Agency: Brinks Hofer Gilson & Lione
- Priority: JP2009-225467 20090929; JP2009-260332 20091113
- Main IPC: G05F3/04
- IPC: G05F3/04 ; G05F3/08 ; G05F3/16 ; G05F3/20
Abstract:
Provided is a voltage regulator having a structure in which an output terminal of a first differential amplifier circuit is connected to a second differential amplifier circuit to control an output transistor by the second differential amplifier circuit. When low current consumption is required, the first differential amplifier circuit is suspended. When high-speed response is required, the first differential amplifier circuit is activated. The low-current consumption operation and the high-speed operation are switched with a minimum circuit area.
Public/Granted literature
- US20110074508A1 VOLTAGE REGULATOR Public/Granted day:2011-03-31
Information query
IPC分类:
