Analog Signal Isolator
loooljoe 2018-05-11 19:01:40 990 Views1 Replies Hi, I was just wondering how does the analog signal isolator work?
Why is there interference between the EC and pH probe when used in the same water, but if i use the isolator interference is suddenly gone?
If the interference is transmitted through the water, why does an isolator between the connections work?
I'm just trying to understand how it works, thanks for any help!
Why is there interference between the EC and pH probe when used in the same water, but if i use the isolator interference is suddenly gone?
If the interference is transmitted through the water, why does an isolator between the connections work?
I'm just trying to understand how it works, thanks for any help!
2018-05-14 16:13:38 You can check the schematics about the chips it uses, and basically, it samples analog signal and converts it to PWM signal with 0~100% duty circle, transmits the PWM signal by optical coupling , and then turn the PWM signal back to voltage signal to avoid the interference. robert.chen
robert.chen 