alt.sci.physics

"Jeff" wrote in message
news:0125e2f9-87bf-49fa-934c-49dcf9a3ae13@l22g2000hsc.googlegroups.com...
> I'm trying to find out how to pulse a DC power supply.
>
> I'm not an engineer but I have basic electronics skills. I've read in
> a few places that a function generator can do this. If so, I assume
> the power supply goes through the function generator and the output of
> the function generator is pulsed DC based upon the frequency selected
> on the function generator?
>
> If this is the case, can anyone suggest a relatively cheap function
> generator up to a $200 range? As for frequency, I'd like something
> that can go up to 1MHz, if possible for that price cap. The DC power
> supply would be in the max 30 volt and 1-2 amp range.
>
> Thanks,
> Jeff

The function generater will produce a wave form. A Square wave would work or
sine wave for a smoother rise and fall of current.

You may be able to choose the frequency and amplitude of your wave.

The output of the function generator is your pulsed DC :


| __ __
| |__| |__|
-----------------------0 amps
Square Wave

|
| _ _
|/ \ / \
| \_/ \_/
------------------------0 amps
Sine Wave

Notice the wave form is above the center line as opposed to AC sine wave :

| _ _
|/ \ / \
-------------------- 0 amps
| \_/ \_/
|

where the wave form drops below the zero amps line, when the current flows
the opposite way