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Dual-channel alternating-current voltage and frequency conversion device

An AC voltage and frequency conversion technology, applied in the field of signal conversion, can solve the problems of being easily interfered by the external environment, small conversion gain, and high full-scale ripple.

Inactive Publication Date: 2019-12-13
HUADONG PHOTOELECTRIC TECHN INST OF ANHUI PROVINCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most AC voltage and frequency signal conversions have the characteristics of low precision, susceptibility to external environment interference, large quiescent current, high full-scale ripple, high zero temperature drift, long response time and small conversion gain.

Method used

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  • Dual-channel alternating-current voltage and frequency conversion device
  • Dual-channel alternating-current voltage and frequency conversion device
  • Dual-channel alternating-current voltage and frequency conversion device

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Embodiment Construction

[0053] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0054] see figure 1 , the present invention provides a dual-channel AC voltage and frequency conversion device, including a first signal unit to be tested, a second signal unit to be tested, a first conversion module, a second conversion module, a third conversion module, a power supply module, a first an output signal unit, a second output signal unit and a third output signal unit; wherein,

[0055] The output port of the first signal unit to be tested is connected to the input port of the first conversion module, and the output port of the second signal unit to be tested is connected to the input port of the second conversion module; the power module is resp...

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Abstract

The invention discloses a dual-channel alternating-current voltage and frequency conversion device. The output port of a first to-be-tested signal unit is connected with the input port of a first conversion module; the output port of a second to-be-tested signal unit is connected with the input port of a second conversion module; a power source module is connected with one of the input ports of the first conversion module, the second conversion module and a third conversion module; and one of the output ports of the first to-be-tested signal unit and second to-be-tested signal unit is connected with one of the inputs port of the third conversion module. With the device adopted, conversion efficiency can be improved; high precision, flexible use, low noise level, high response speed, effective control over quiescent current, zero temperature drift and full-scale ripple can be realized; the gain of a system is balanced; and dual-channel alternating-current voltage and frequency conversion is realized.

Description

technical field [0001] The invention relates to the field of signal conversion, in particular to a dual-channel AC voltage and frequency conversion device. Background technique [0002] In recent years, with the extensive application of industrial measurement and control systems, the output signals of sensors are various forms of analog quantities, most of which cannot be used directly, but need to be converted into a unified DC signal through a transmission circuit, so as to be able to Recognized by measurement and control units in systems such as control instruments and computers. [0003] At present, most AC voltage and frequency signal conversions have the characteristics of low precision, susceptibility to external environment interference, large quiescent current, high full-scale ripple, high zero temperature drift, long response time and small conversion gain. [0004] Therefore, there is an urgent need to provide a new conversion device to solve the above technical ...

Claims

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Application Information

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IPC IPC(8): H02M7/06H03K19/003H03K19/0175
CPCH02M7/06H03K19/017509H03K19/00369
Inventor 陈加伐孟庆贤方航李勤勤汪燕燕俞昌忠詹锐曹振玲
Owner HUADONG PHOTOELECTRIC TECHN INST OF ANHUI PROVINCE
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