Hello ,

I need to convert a 24v DC into a +/- 15v Pulse signal.

I tried using 555 timer, all i could get is 0 - 24v pulse signal.

Can any one help me out in getting +/-15 v pulse signal.

thanks.

 

What do you want? PS voltage? 24Vdc is an input? Do you want either +15 or -15 out, or a signal that swings from +15V to -15V or vice versa? Quality questions get quality answers.

 

If you want a ±15V pulse to ground then you need at least a 30V supply. How much current does the ±15V signal require?

 

What do you want? PS voltage? 24Vdc is an input? Do you want either +15 or -15 out, or a signal that swings from +15V to -15V or vice versa? Quality questions get quality answers.

Thnks for reply.

24V DC is the input and i need output signal that swings from +15v to -15v.

 

If you want a ±15V pulse to ground then you need at least a 30V supply. How much current does the ±15V signal require?

Actually i have an source of 24v DC, can we get using this source.

Current requirement is 2 - 3A.

 

Does the 2-3A load for the ±15V pulse need to be grounded?

 

Does the 2-3A load for the ±15V pulse need to be grounded?

Ya gnd is nedded.

 

If you want a ±15V pulse to ground then you need at least a 30V supply. How much current does the ±15V signal require?

I can stepup 24 v to 30 v, can you please let me know,

how can we get ±15Vpulse signal from it.

thanks

 

Presuming that you are powering your load with a sine-wave-like input, perhaps this thread will point you in the right direction: http://forum.allaboutcircuits.com/showthread.php?t=54811
Cheers .

 

Then feed your resulting oscillating +/- voltage signal to your FETs (do' no whether you'll use a PMOS and NMOS arranged in such a manner that you tap the 2amps you need from the junction between both fets; NMOS source and PMOS drain...correct me if I'm wrong... ). Ditch any pulldown resistor you might have: ie, a resistor across the gate-source pins of your FET.

 

Presuming that you are powering your load with a sine-wave-like input, perhaps this thread will point you in the right direction: http://forum.allaboutcircuits.com/showthread.php?t=54811
Cheers .

Thanks,

Using 555 timer and 24 v DC supply, i got a 0 - 24v pulse signal,

but where as i need a ± 15 v pusle (Sqaure) signal not the sine wave .

 

Ya gnd is nedded.

Hello crutschow,

Can you please let me know how can we get an ± 15v Square ( Pulse) signal from 30v DC supply.

 

Hello crutschow,

Can you please let me know how can we get an ± 15v Square ( Pulse) signal from 30v DC supply.

If the square-wave is symmetrical then you can generate a 30V square-wave and run it through a large capacitor.