One shorting piece can realize two or more voltage level outputs?

乱世煮酒论天下

One shorting piece can realize two or more voltage level outputs? [Copy link]

The motor encoder power supply types include 5V, 12V and 24V. If each voltage level is equipped with an encoder card, it is a bit troublesome. If two voltage levels can be provided to the encoder on one encoder, there are two things I don’t understand?

1. This power supply is used to power the encoder. Only one short-circuit chip is used to achieve the output of two power supply voltage levels. This should be the principle of a three-terminal linear regulator changing the reference voltage?

2. What method is used to isolate the isolation chip used in the isolation channel of the encoder? What are the commonly used chips?

hjh0512

I just started learning this, and I don't understand what you're saying, so I can only help you out.

乱世煮酒论天下

hjh0512 posted on 2024-6-6 18:00 I just started learning these, and I don’t understand what you said, so I can only help you.

There is another question. The power supply can be said to be a separate power supply for the encoder, but the encoder return signal is almost equal to the voltage level. So how does the encoder card support signal inputs of multiple voltage levels?

beyond_笑谈

You need to check which encoder is used, or whether the encoder supports wide voltage input. If the communication level of the encoder is different from that of the controller, you must add a level conversion circuit.

beyond_笑谈

The input voltage range of the encoder is in the specification sheet. The following is the content of the Heidenhain encoder specification sheet.