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A high-efficiency analog signal output device

An analog signal and output device technology, applied in simulators, program control, instruments, etc., can solve problems such as heat loss and low efficiency, and achieve the effects of reducing circuit heating, improving reliability, and efficient analog output.

Active Publication Date: 2022-04-08
NUCLEAR POWER INSTITUTE OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the problems of heat loss and low efficiency in the existing fixed power supply mode, the present invention provides a high-efficiency analog signal output device

Method used

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  • A high-efficiency analog signal output device

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Embodiment

[0052] Compared with the existing fixed power supply control technology, there are problems of heat loss and low circuit efficiency, thereby reducing the reliability of the circuit. This embodiment proposes a high-efficiency analog signal output device. The device of this embodiment utilizes a buck-boost circuit to adjust the supply voltage of the analog output circuit (the analog output circuit of this embodiment includes a current analog output circuit and a voltage analog output circuit) to realize dynamic power control, thereby improving circuit efficiency .

[0053] Such as figure 1 As shown, the device of this embodiment includes an auxiliary power supply circuit, a buck-boost circuit, a control circuit, a current output circuit and a voltage output circuit.

[0054] (1) Auxiliary power supply circuit

[0055] The auxiliary power supply circuit is a step-down circuit, which mainly supplies power for the control circuit and peripheral devices, and can adapt to a wide ra...

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Abstract

The invention discloses a high-efficiency analog signal output device. The output device of the invention includes a control circuit, a voltage-boost circuit and an analog output circuit; wherein, the voltage-boost circuit is used to supply power to the analog output circuit; The control circuit adjusts the output voltage of the buck-boost circuit according to the magnitude of the output signal of the analog output circuit, thereby realizing dynamic adjustment of the analog output power. The present invention utilizes a buck-boost circuit to adjust the power supply voltage of an analog output circuit (current analog output circuit or voltage analog output circuit) to realize dynamic power control, thereby reducing heat loss and improving circuit efficiency.

Description

technical field [0001] The invention belongs to the field of digital instrument control of nuclear power plants, and in particular relates to a high-efficiency analog signal output device. Background technique [0002] The digital instrumentation and control (I&C) system of nuclear power plants still uses a large number of traditional current signals as signal transmission. The control signals of the actuators on the nuclear power plant site are mainly 4-20mA current and 0-5V / 10V voltage signals. The correct and accurate actions of the actuators directly affect the safe operation of the nuclear power plant, so the reliability of the analog control signals is very important. [0003] Traditional analog signal output devices (such as temperature transmitters, pressure transmitters, etc.) output current or voltage control signals under a fixed supply voltage. Such as 4-20mA current signal, due to the uncertain output load, to ensure the maximum current output, a higher power s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/042
CPCG05B19/0423G05B2219/25257
Inventor 刘明星陈培训梁建秦官学严浩杨有维黄起昌田旭峰王舜
Owner NUCLEAR POWER INSTITUTE OF CHINA