Signal conversion electronic circuit

Abstract

The invention discloses a signal conversion electronic circuit, which is used for externally connecting a sensor and equipment. An output signal of the sensor is amplified to obtain an amplified signal, and the signal is sent to the equipment; signal conversion electronic circuit comprises an external interface, a direct current conversion circuit and a signal amplification circuit. The signal amplification circuit comprises a first resistor, a second resistor, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a first triode, a second triode, a third triode, a fourth triode and a first capacitor. According to the invention, before signals are received, the voltage is enhanced after the signals pass through the amplifier tube, and the voltage is controlled withina certain range, so that the conversion of the signals is not easily interfered, and the stability of signal transmission is ensured; the power supply problem of the sensor and the working power supply requirements of other components are solved, the integrated design is adopted, the size is small, the cost is saved, and the market prospect is wide.

Description

technical field [0001] The invention relates to an electronic circuit, in particular to a signal conversion electronic circuit. Background technique [0002] With the development and progress of industry, the transformation from Chinese manufacturing to Chinese intelligent manufacturing, the demand for intelligent industrial control equipment is getting higher and higher, and general machine tool machinery and equipment are transforming to automation and numerical control. All precision equipment involving linear orbital motion needs to use sensors for positioning, such as single-chip microcomputers, PLC programmable automatic machinery, machine tools, testing instruments and other equipment. The digital signal converter is a single-input or double-input current-voltage signal of the signal converter, which transmits and outputs isolated single-channel or dual-line current-voltage signals, and improves the electrical isolation performance between the input, output and power ...

AI Technical Summary

Problems solved by technology

However, in the process of using the existing digital signal converter, when the DC blocking capacitor is charged and discharged by the DC correction signal applied to the digital signal converter, stability problems may occur. When the digital input signal with the maximum value is received, it is prone to short frequency; and the working voltage of the traditional grating sensor is 5VDC, which is incompatible with the 24VDC voltage provided by the PLC equipment, and the digital signal of the grating sensor is incompatible with the requirements of the PLC equipment. The pulse signal is also inconsistent

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