Continue to Site

Welcome to our site!

Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Current Loop to RS232 Converter

Status
Not open for further replies.

Shaun22

New Member
Hi,

I would like to build a current loop to RS232 converter but have been batteling to find a circuit. I am looking for anything from 25mA to 40mA as I would like to finish a project I am working on. Does anyone know where I can find a circuit and parts list for such a device or does anyone have one? Any assistance will be greatly appriciated

Thanks in advance
 
Shaun22 said:
Hi,

I would like to build a current loop to RS232 converter but have been batteling to find a circuit. I am looking for anything from 25mA to 40mA as I would like to finish a project I am working on. Does anyone know where I can find a circuit and parts list for such a device or does anyone have one? Any assistance will be greatly appriciated

Thanks in advance

It used to be quite common, but I haven't seem a circuit for many, many years - I can't even remember now what the current used actually was (although 20mA sounds vaguely familiar!).

I did have a nice simple circuit at home somewhere, I'll see if I can find it, but I'm fairly doubtful that I can now.

From what I can remember, it's quite easy to do - I'm sure someone else will have more recent info.
 
Hi Nigel,

Thanks for the response, yes a 20mA circuit is an industry standard although I require a higher current rating, I dont think it will be too difficult to modify the circuit to suit the current. Thanks anyway.
 
Status
Not open for further replies.

New Articles From Microcontroller Tips

Back
Top