Invention Application
US20140361760A1 VOLTAGE REGULATION CIRCUITS AND POWER SUPPLY DEVICES USING THE SAME
有权
电压调节电路和使用该电路的电源装置
- Patent Title: VOLTAGE REGULATION CIRCUITS AND POWER SUPPLY DEVICES USING THE SAME
- Patent Title (中): 电压调节电路和使用该电路的电源装置
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Application No.: US13912821Application Date: 2013-06-07
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Publication No.: US20140361760A1Publication Date: 2014-12-11
- Inventor: Chien-Wei KUAN , Jyh-Pyng LAY , Chih-Ching YU , Yuh-Long YEH
- Applicant: MediaTek Inc.
- Main IPC: G05F1/46
- IPC: G05F1/46
Abstract:
A voltage regulation circuit is provided. The voltage regulation circuit regulates a level of a supply voltage provided by an automotive battery. The voltage regulation circuit includes a selector and an error amplifier. The selector receives a plurality of predetermined voltages and selects one of the plurality of predetermined voltages according to a control signal to serve as a first reference voltage. The error amplifier generates an error signal according to the first reference voltage and a feedback signal. The feedback signal is related to the supply voltage. The voltage regulation circuit regulates the level of the supply voltage according to the error signal.
Public/Granted literature
- US09772637B2 Voltage regulation circuits and power supply devices using the same Public/Granted day:2017-09-26
Information query
IPC分类:
