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Isolated type sampling SIP

An isolated and sampling circuit technology, applied in the field of isolated power sampling, to achieve the effect of simplifying design and saving resources

Pending Publication Date: 2019-03-08
58TH RES INST OF CETC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an isolated sampling SIP to solve the requirements of traditional power sampling circuits for isolation, precision, speed, intelligence, power consumption, cost and size

Method used

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  • Isolated type sampling SIP

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Embodiment 1

[0031] The present invention provides an isolated sampling SIP, its principle structure is as follows figure 1 shown. The isolated sampling SIP includes a plurality of isolated high-voltage sampling circuits, each isolated high-voltage sampling circuit includes a voltage divider circuit 1, a signal conditioning circuit 2, an A / D conversion circuit 3, and a digital isolator circuit connected in sequence 4; wherein, the digital isolator circuit 4 in each isolated high voltage sampling circuit is connected to the MCU circuit 5 through the SPI interface; the MCU circuit 5 is connected to the crystal oscillator 6, the transceiver circuit 7 and the temperature sensor circuit 8 respectively catch. Specifically, the number of isolated high voltage sampling circuits is 12.

[0032] Specifically, the voltage divider circuit 1 is used for detecting voltage signals; the signal conditioning circuit 2 is used for anti-surge and level buffer driving; the A / D conversion circuit 3 is used fo...

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PUM

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Abstract

The invention discloses an isolated type sampling SIP, and belongs to the technical field of isolated power sampling. The isolated type sampling SIP comprises multiple isolated type high voltage sampling circuits, each isolated type high voltage sampling circuit comprises a voltage division circuit, a signal conditioning circuit, an A / D conversion circuit and a digital isolator circuit connected successively; the digital isolator circuit in each isolated type high voltage sampling circuit is connected with an MCU circuit; and the MCU circuit is connected with a crystal oscillator, a transmitter circuit and a temperature sensor circuit.

Description

technical field [0001] The invention relates to the technical field of isolated power sampling, in particular to an isolated sampling SIP. Background technique [0002] With the development of science and technology, industrial sites, medical equipment, experimental research and other fields have put forward higher and higher requirements for data acquisition. Control, installation method, cost and size are all the focus of user investigation. [0003] At present, similar products at home and abroad cannot achieve mutual isolation between input signals when collecting multi-channel signals; a large number of power resistors are used for step-down in power supply processing, which results in large heat consumption and large volume; optocouplers are used for analog level isolation, Poor linearity; unable to achieve intelligent isolation control through the serial port; these all restrict the anti-interference, miniaturization, low power consumption, and low cost requirements ...

Claims

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Application Information

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IPC IPC(8): G05B19/042
CPCG05B19/0423G05B2219/21137
Inventor 仲凯吴松居靖
Owner 58TH RES INST OF CETC
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