Recently got a small project, because there is a power supply interface using solid state relay, then there is also a useful outside of photoelectric sensor, the main is testing whether into the object, and then I also tried on the board and a filter capacitor or pull-up resistors, all not line, will from time to time transmit the sensor will come in a low level, somebody in the same situation? You can talk to me, thank you.

CodePudding user response:

Curious, determine interference is a solid state relay?
Generally solid state relay will not interfere

CodePudding user response:

reference 1/f, the wise know already should good karma response:

curious, determine interference is a solid state relay?
Generally solid state relay is not produce interference

Is connected to 220 v, the interference can be on and off?

CodePudding user response:

Don't know what to say relay, solid state relay maybe I know is not what you said that?
Solid state relay https://baike.baidu.com/item//4842026 I is this? Solid state relay,

CodePudding user response:

220 v on and off can cause ripple, but solid state relay in general unless the resonance, otherwise don't make such a big interference, specific need to look at your cable connection