Encoder voltage stabilization protection circuit

Abstract

The invention relates to an encoder voltage stabilization protection circuit, which comprises a voltage stabilization circuit, an operation circuit and a shaping output circuit, and is characterized in that the voltage stabilization circuit is used for carrying out voltage stabilization processing on an input signal to obtain a voltage stabilization signal and is electrically connected with the operation circuit; the operational circuit is used for converting the rectified signal into a unipolar coded signal and is electrically connected with the shaping output circuit; and the shaping output circuit is used for shaping the unipolar coded signal into a digital coded signal. The encoder voltage stabilization protection circuit provided by the invention can process a digital differential encoding signal and an analog differential encoding signal at the same time, can be suitable for encoders of different types, brings great convenience to the design of a control system, carries out voltage stabilization protection processing on an input signal, and improves the stability of the input signal. And the circuit is effectively protected, so that the encoder has higher robustness and wide application.

Description

technical field [0001] The invention belongs to the field of encoders, in particular to an encoder circuit with rectification protection. Background technique [0002] An encoder is a device that compiles and converts a signal or data into a signal form that can be used for communication, transmission and storage. The encoder has different signal output methods according to different working principles and parameter requirements. Generally, it is divided into two types: analog output and digital output. The correct use of the encoder is that the digital output is divided into square wave (TTL, HTL), collector Open circuit (PNP, NPN), push-pull and other forms. The analog input is divided into two types: current and voltage output. In order to use the encoder correctly, it is necessary to equip different input circuits for different output forms of the encoder. [0003] At present, the encoder circuit of the usual control system is only used for one or several input forms, ...

AI Technical Summary

Problems solved by technology

[0003] At present, the encoder circuit of the usual control system is only used for one or several input forms, but when the demand changes, or the encoder input is different, the encoder input circuit of the control system cannot be used, so only the control can be replaced. system or replaced by other encoders, which brings great changes to the system design, and in practical applications, in order to prevent the circuit from being damaged by pulse voltage, a protection circuit is often set

However, in the existing technology, these protection circuit design functions are single, the cost is high, and the circuit design is also relatively complicated.

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