Precise digital power supply

A digital power supply, precision technology, applied in the direction of electrical components, conversion equipment without intermediate conversion to AC, output power conversion device, etc., can solve the problems of restricting the development of precision digital power supply, waste of hardware resources, etc.

Active Publication Date: 2015-01-14
RIGOL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, in the case of many interfaces, using the above isolation method for isolation will cause a great waste of hardware resources
This problem greatly limits the development of precision digital power

Method used

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Embodiment Construction

[0024] The present invention will be further described below with reference to the drawings and embodiments.

[0025] As mentioned above, the main design idea of ​​the present invention is to use the master-slave processor architecture to separate the digital part and the analog part of the power circuit, and isolate the power circuit through the isolation circuit, thereby improving the overall anti-interference and safety of the power system .

[0026] figure 1 It is the circuit structure diagram of the precision digital power supply designed by the present invention. As shown in the figure, the precision digital power supply is composed of a digital control part 119, a digital isolation circuit 113 and an analog output control part 120.

[0027] The digital control part 119 includes a first controller 110, a peripheral interface 109, a keyboard control circuit 111, and a screen display circuit 112. Among them, the first controller 110 is the core control component of the digital...

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Abstract

The invention provides a precise digital power supply which comprises a digital control part, a digital isolation circuit and an analog output control part, wherein the digital control part and the analog output control part are respectively and independently be controlled by adopting a first controller and a second controller, and the first controller and the second controller realize data interaction through the digital isolation circuit. The precise digital power supply is used for separating the digital part from the analog part in a power supply circuit by adopting a master-slave mode processor architecture; the isolation circuit is arranged between the digital control part and the analog output control part, thus the requirement on the power supply for the circuit isolation on the digital control part and the analog output control part is met, the requirement on a peripheral interface for the data stream processing capacity is met, and the precise digital power supply has strong data processing capacity and better interference resistance.

Description

Technical field [0001] The invention relates to a precision digital power supply and belongs to the technical field of power supply equipment. Background technique [0002] Precision digital power supply is a DC power supply, usually used for scientific experiments and debugging of precision instruments. The power supply equipment has high stability, low noise and low drift per unit time, and is a kind of precision power supply equipment. [0003] The circuit structure of the existing precision digital power supply is usually like Figure 4 As shown, it includes MCU control circuit, DAC reference voltage output circuit, analog output circuit, ADC detection circuit, and MCU control circuit. Among them, the MCU control circuit is generally connected with a keyboard control circuit and a screen display circuit. The user sets the voltage and current to be output by the power supply through the keyboard control circuit and the screen display circuit. The MCU control circuit processes ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M3/02H02M1/10
Inventor 王悦王铁军李维森
Owner RIGOL
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