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High-precision and high-resolution programmable power supply circuit

A high-resolution, power circuit technology, used in program control, instrumentation, computer control, etc., can solve problems such as inability to meet the needs of chip-level detection

Pending Publication Date: 2019-02-15
湖南恩智测控技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The high-end power supply resolution is only 16bit, and the accuracy is about 0.05%, which is completely unable to meet the needs of chip-level detection

Method used

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  • High-precision and high-resolution programmable power supply circuit

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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

[0022] In order to facilitate the understanding of the above-mentioned technical solution of the present invention, the above-mentioned technical solution of the present invention will be described in detail below through specific implementation modes.

[0023] figure 1 A schematic diagram of the high-precision and high-resolution programmable power supply circuit described in the embodiment of the present invention is shown. A high-precision and high-resolution programmable power supply cir...

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Abstract

The invention discloses a high-precision and high-resolution programmable power supply circuit, which comprises a rectifier VD, a triode T, an operational amplifier module, a DAC module, a resistancenetwork, a load module and an MCU. One end of the rectifier VD is connected with an AC input end, and the other end is connected to the collector of the triode T. The emitter of the triode T is connected to an output end OUT. The base of the triode T is connected with the output end of the operational amplifier module. The input end of the operational amplifier module is connected with the resistance network and the DAC module. The MCU is connected to the DAC module. The load module is connected to the output end OUT and the operational amplifier module. Through the high-precision and high-resolution programmable power supply circuit of the invention, a high-precision ADC can be adopted for acquisition, and the output can be controlled by a high-resolution DAC. The high-precision and high-resolution programmable power supply circuit is suitable for high-end market application occasions requiring very high resolution, very high precision, very small temperature coefficient and very lowoutput ripple.

Description

technical field [0001] The invention relates to the field of power circuits, in particular to a high-precision and high-resolution programmable power circuit. Background technique [0002] With the rapid development of the national economy and the widespread use of electrified equipment, the load forms of electrical equipment have become increasingly complex and diverse, and a large number of loads with nonlinear, impact and unbalanced characteristics have caused the deterioration of the power quality of the power supply network. On the other hand, the modern fast-growing high-tech industry has higher and higher requirements for power quality. Among them, power quality is defined as the deviation of voltage, current or frequency that causes electrical equipment to fail or not work properly. Once some power users who are sensitive to power requirements have problems related to power quality, huge economic losses will often occur. [0003] The current power supply mainly inc...

Claims

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Application Information

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IPC IPC(8): G05B19/042
CPCG05B19/0423Y02B70/10
Inventor 黄涌陈清杨细芳付强
Owner 湖南恩智测控技术有限公司
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