发明申请
- 专利标题: VOLTAGE REGULATOR
- 专利标题(中): 电压稳压器
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申请号: US14504133申请日: 2014-10-01
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公开(公告)号: US20150097543A1公开(公告)日: 2015-04-09
- 发明人: Yuji KOBAYASHI , Teruo SUZUKI
- 申请人: Seiko Instruments Inc.
- 优先权: JP2013-208142 20131003
- 主分类号: H02M3/158
- IPC分类号: H02M3/158 ; H02M1/08
摘要:
Provided is a voltage regulator including a leakage current correction circuit capable of keeping the accuracy of an output voltage of the voltage regulator even when an output voltage of a reference voltage circuit is decreased due to the influence of a leakage current. The voltage regulator includes: a reference voltage circuit configured to output a reference voltage; an output transistor configured to output an output voltage; a voltage divider circuit configured to divide the output voltage to output a feedback voltage; an error amplifier circuit configured to amplify a difference between the reference voltage and the feedback voltage, and output the amplified difference to control a gate of the output transistor; and a leakage current correction circuit connected to an output terminal of the voltage divider circuit. The leakage current correction circuit is configured to decrease the feedback voltage to prevent the output voltage from dropping at high temperature.
公开/授权文献
- US09385584B2 Voltage regulator 公开/授权日:2016-07-05
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