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Waveform

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eceone

New Member
Hi,

I am working on a project. I am having trouble creating an adjustable-height and adjustable frequency sawtooth wave with a max amplitude of 0V to -1000V (from a 0 to 5 V input) at a frequency between 10 and 100 HZ. Also, I want to have a "monitor" output and a trigger at the start of the downward ramp.

Any help is much appreciated. Thanks in advance for your help.
 

Sceadwian

Banned
I'm sorry, did you say 1000 volts?
 

eceone

New Member
yes, i want the output of the downward ramp to be from 0 to -1KV(-1000 volts).

any help is appreciated.
 

Hero999

Banned
Why do you want to do this?
 

eceone

New Member
Please help. that's my only problem with this project as i can't seem to get the wave form correctly.
 
Last edited:

Sceadwian

Banned
It's 1000 volts eceone.... even 1ma of current is a watt of power. You need to really fully describe what you're driving. What's the trigger voltage?
 

ronsimpson

Well-Known Member
Most Helpful Member
I do not know "fabryinferometer". Help?
Current???
Is the trigger an input or output?
 

eceone

New Member
I want a triangular input wave with an adjustable height that has a peak of 5 volts. i.e. it has an amplitude that varies up to 5 volts. Also, the trigger is an input that is high at the maximum peak of 5 volts.

this is meant to be an input for the high voltage amplifier. The high voltage amplifier produces to the 0 to -1000 ramp wave. forget about the fabryinferometer.

hope this information is enough to at least provide me with some ideas as to how to go about it.

thanks.
 

crutschow

Well-Known Member
Most Helpful Member
Do you want this voltage and frequency to be manually adjustable or controlled by a computer?

You said you tried using an A/D. Do you mean a D/A?
 

ronsimpson

Well-Known Member
Most Helpful Member
Why do I need to know what a fabryinferometer is?
It is very hard to make a 0 to -1kv amplifier. (parts)
It is easy to make a 0 to +1kv amplifier. (20 to +1020 volts)
It a fabryinferometer is what I think then the + ramp will work.
The output can not take much current!

There are two parts to this.
1- make a 0 to 5 volts ramp.
2- make amplifier.

If you don't want every one to know what you are doing you can send a private e-mail. I will post the amplifier so every one can see that.
 
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