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Numeric control power supply with high precision and low power consumption

A numerical control power supply, low power consumption technology, applied in the direction of conversion equipment without intermediate conversion to AC, can solve the problems of large output ripple current, poor transient response of the power system, slow response speed, etc., to achieve fast response speed, Good stability and increased service life

Inactive Publication Date: 2015-03-11
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current digital control power supply uses digital feedback, which has a slow response speed and a large output ripple current, which leads to poor transient response of the entire power supply system.

Method used

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  • Numeric control power supply with high precision and low power consumption
  • Numeric control power supply with high precision and low power consumption
  • Numeric control power supply with high precision and low power consumption

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Embodiment Construction

[0025] In order to better understand the technical solution of the present invention, the present invention will be further described below in conjunction with the accompanying drawings.

[0026] like figure 1 As shown, a high-precision and low-power digital control power supply includes a mixed-signal processor, which is connected to a contact switch array, an LCD display, an overcurrent and overvoltage protection circuit, a switching power supply conversion chip, a main circuit, and a D / A converter; the switching power supply conversion chip is connected to the voltage stabilizing circuit and the current stabilizing circuit through the single pole double throw switch S, and the voltage stabilizing circuit and the current stabilizing circuit are respectively connected to the fixed end of the single pole double throw switch S; the main circuit is connected to the voltage stabilizing circuit and the stabilizing circuit The current circuit; the D / A converter is connected to the...

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PUM

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Abstract

The invention discloses a numeric control power supply which comprises a mixed signal processor, wherein the mixed signal processor is connected with a contact switch array, an LCD (Liquid Crystal Display), an over-current and over-voltage protection circuit, a switch power supply conversion chip, a main circuit and a D / A (Digital / Analog) converter, wherein the switch power supply conversion chip is connected with a moving end of a single-pole double-throw switch S; two fixed ends of the single-pole double-throw switch S are respectively connected with a voltage stabilizing circuit and a current stabilizing circuit; the main circuit is connected with the voltage stabilizing circuit and the current stabilizing circuit; the D / A converter is connected with the voltage stabilizing circuit and the current stabilizing circuit. The numeric control power supply has the advantages of high efficiency, high precision, low power consumption and good transient response.

Description

technical field [0001] The invention belongs to the field of switching converters, in particular to a high-precision and low-power numerical control power supply. Background technique [0002] Switching converter, also known as switching power supply, is a power converter in which the power switching device works in the switching state. It converts the input voltage at the input terminal into the output voltage at the load terminal through the periodic turn-on and turn-off of the switch. Numerical control power supply is a kind of switching converter, which is a commonly used electronic device, which can ensure stable output voltage when the grid voltage fluctuates or the load changes. A low-ripple, high-precision voltage regulator has important practical application value in the fields of instrumentation, industrial control and measurement. [0003] With the popularization and development of electronic equipment, people have higher and higher requirements for the accuracy ...

Claims

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Application Information

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IPC IPC(8): H02M3/20
CPCH02M3/20
Inventor 任宏伟刘仍庆杨阳陈宇菲程新功
Owner UNIV OF JINAN
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