Boosting an Analog input signal
Boosting an Analog input signal
(OP)
I work on really old CNC/Laser systems and noticed that when I use my analog input of 0 to -8v that when the laser it is feeding loads the signal down quite a bit. -8v becomes about -2v. These two pieces of equipment do not normally work together, but I have every other function working perfectly. So looking for a simple idea to boost its strength. Unfortunately the controller does not spec how much current it can deliver and the laser doesn’t spec how much current it demands. Ideally I’d also like to make it adjustable so the 0 to -8v will result in 0 to -5v, but that’s not critical.
"I am stuck on Band-Aid brand, 'cause they are stuck on me"
RE: Boosting an Analog input signal
High impedance input and robust output.
Bill
--------------------
Ohm's law
Not just a good idea;
It's the LAW!
RE: Boosting an Analog input signal
BR A
“Logic will get you from A to Z; imagination will get you everywhere.“
Albert Einstein
RE: Boosting an Analog input signal
https://www.acromag.com/product-category/signal-co...
Brad Waybright
The more you know, the more you know you don't know.
RE: Boosting an Analog input signal
https://www.digchip.com/datasheets/parts/datasheet...
TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! https://www.youtube.com/watch?v=BKorP55Aqvg
FAQ731-376: Eng-Tips.com Forum Policies forum1529: Translation Assistance for Engineers Entire Forum list http://www.eng-tips.com/forumlist.cfm
RE: Boosting an Analog input signal
RE: Boosting an Analog input signal
The controller is a 1980’s vintage Anorad Anomatic II which is no longer supported by the manufacturer. The Laser is an old Raytheon SS550 welder/driller. Also old and there is only a small handful of us that support these anymore.
I did find the circuit originally used between these, it had an old AD510JH op amp that operated on + and -15vdc. Most of the electronics in the laser operated on +-15vdc. Would like something more modern, but I think I can still get those chips, so may just build the original circuit
I’m not an electronics engineer, I am more of a repair guy.
"I am stuck on Band-Aid brand, 'cause they are stuck on me"
RE: Boosting an Analog input signal
When calculating resistance values remember that the input resistance of the load should be part of the calculations.
Bill
--------------------
Ohm's law
Not just a good idea;
It's the LAW!