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Voltage control device

A technology of voltage control and reference voltage, which is applied in the direction of control/regulation system, adjustment of electrical variables, instruments, etc., can solve problems such as unstable power supply voltage of devices, and achieve the effect of solving unstable power supply voltage and providing stable voltage

Active Publication Date: 2014-04-02
ANALOGIX CHINA SEMICON +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a voltage control device to solve the problem of unstable power supply voltage of the device

Method used

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Embodiment Construction

[0019] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0020] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] The invention provides a voltage control devi...

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Abstract

The invention discloses a voltage control device. The voltage control device comprises a reference voltage generator, a main calibrator and slave calibrators, wherein the reference voltage generator is used for generating reference voltage by controlling a band-gap reference voltage source, a positive input end of an operational amplifier in the main calibrator is connected with a reference voltage output end of the reference voltage generator, and the slave calibrators are connected with an output end of the main calibrator. According to the voltage control device disclosed by the invention, the problem in the prior art that the power supply voltage of a device is unstable is solved.

Description

technical field [0001] The invention relates to the field of circuits, in particular to a voltage control device. Background technique [0002] In deep subminiature technology, device performance is affected by temperature and reference voltage. For circuit designers, it is hoped that the frequency bandwidth of the circuit can be kept constant in PVT. [0003] In the design of analog circuits, generally speaking, the power supply voltage introduced from the outside of the circuit fluctuates to a certain extent with the change of temperature, and the analog circuit has higher requirements on the stability of the voltage. Due to the change of temperature, the power supply voltage may unstable, resulting in variations in the frequency bandwidth of the circuit. [0004] Aiming at the problem of unstable power supply voltage of devices in the prior art, no effective solution has been proposed yet. Contents of the invention [0005] The main purpose of the present invention i...

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Application Information

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IPC IPC(8): G05F1/56
Inventor 侯中原
Owner ANALOGIX CHINA SEMICON