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What the encoder output form?

by:HENGXIANG     2020-12-04
The encoder angular displacement or linear displacement is converted into electrical signals. Encoder signal output form: open collector output ( OpenCollector) The output voltage, ( VoltageOutput) , line driver output ( LineDriver) , complementary output ( ComplementalOutput) And the push-pull output ( TotemPole) 。 What are the output optical to introduce the encoder forms? Open collector output this way of output by using the encoder output side of the NPN transistor, the transistor emitter leading-out terminal connected to 0 v, the collector disconnected from + Vcc terminal and the collector as output. Generally divided into NPN open collector output and PNP open collector output. Voltage and the voltage signal receiving device inconsistent cases, it is recommended to use this type of output circuit. Output voltage output this way of output by using the encoder side of NPN transistor, the transistor emitter leading-out terminal connected to 0 v, the collector terminals are connected to the + Vcc and load resistance, and as the output end. In the encoder voltage are consistent with the voltage of the signal receiving device, it is recommended to use this type of output circuit. RS - linear output driver is adopted 422 standard, with the AM26LS31 chips used in high speed, the output of the long-distance data transmission mode. Signal output in the form of difference, it has stronger anti-interference ability. The output signal you can receive the linear drive output device to receive. Complementary output the output way by two respectively for the PNP and NPN transistor, when one of the transistor conduction, another triode is shut off. According to the output signal of [ H] 、[ L] And two output transistor interaction [ 上) 、[ 了) The action. This output form with high input impedance and low output impedance. Same input and output signal phase and the frequency range is wide. Than open collector output circuit transmission distance can be a bit far, also can input and open collector machine ( NPN、PNP) The connection. Push-pull output the output mode is composed of two NPN transistor, when one of the transistor conduction, another triode is shut off. Current through the output side of the two transistor flow in both directions, and always output current. So it's low impedance, and less affected by noise and deformation wave. Shanghai optical co. , LTD. , products are divided into more than 20 series, more than 100 varieties: photoelectric increment type, magnetoelectric incremental type, single ring absolute type, many absolute type, the circular encoder, etc. , are widely used in electrical machinery, machine tools, packaging and printing, textiles, wind power, aerospace, servo control, automated assembly line, turret tools, such as industrial automation control field. A: on the working principle of incremental encoder and the characteristics under a: accuracy and resolution of the encoder is introduced
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