Author Topic: Amplifying a function generator output  (Read 9203 times)

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Offline beanbr173Topic starter

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Amplifying a function generator output
« on: April 04, 2024, 05:33:23 am »
I have a Siglent SDG2082X - Function/Arbitrary Waveform Generator (2 Channels/80MHz/1.2 GSa/s).

I am trying to create a wave train characterized by a pulse repetition frequency of approximately 30 to 40 cycles per second, a pulse width of approximately 1.8 to 2.0 milliseconds, and a pulse amplitude of 18 to 24 volts.

Specifically I am trying to replicate a 1966 patent through the use of this function generator: https://patents.google.com/patent/US3255753

I have done googled searches but am not making sense of any of the results provided, seems like it's not possible?

Thanks in advance for any support!
 

Offline Andree Henkel

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Re: Amplifying a function generator output
« Reply #1 on: April 04, 2024, 08:20:39 am »
well, more info needed:
*load impedance / load current / load resistance
*cable length
*desired rise/fall time of pulses at load.

if rise/fall time can be long compared to round trip delay depending on cable length and type, and load current is small (impedance or resistance large), then it is a quite easy task.

edit:
well, I read the patent short: it is pretty much self explatory what is needed to implement the device
There is a principal schematic drawing showing a implementation.
Today you would not implement it using discrete Transistors and Transformers.

But if you can´t make sense of it (sorry if I´m impolite) you are probably wrong person for the task at Hand
And it is a "medical device" so while I could design an implementation I´m not firm with the special compliance rules for medical equipment.
« Last Edit: April 04, 2024, 08:38:23 am by Andree Henkel »
 

Offline Mechatrommer

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Re: Amplifying a function generator output
« Reply #2 on: April 04, 2024, 02:14:10 pm »
I am trying to create a wave train characterized by a pulse repetition frequency of approximately 30 to 40 cycles per second, a pulse width of approximately 1.8 to 2.0 milliseconds, and a pulse amplitude of 18 to 24 volts.
sounds super easy with just one or a few transistors and passive elements. you dont even need a AWG i think.. in fact it looks like transistor multivibrator in the patent sheet to generate the pulses.. ymmv.
https://technologystudent.com/elec1/dual1.htm
https://www.electronics-tutorials.ws/waveforms/astable.html
« Last Edit: April 04, 2024, 02:38:19 pm by Mechatrommer »
Nature: Evolution and the Illusion of Randomness (Stephen L. Talbott): Its now indisputable that... organisms “expertise” contextualizes its genome, and its nonsense to say that these powers are under the control of the genome being contextualized - Barbara McClintock
 

Offline Andree Henkel

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Re: Amplifying a function generator output
« Reply #3 on: April 04, 2024, 02:27:25 pm »
me just trolling  8):

as it is a "medical device" use of the AWG is actually forbidden - because no complete galvanic isolation to the power grid
 

Online abeyer

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Re: Amplifying a function generator output
« Reply #4 on: April 04, 2024, 07:52:10 pm »
me just trolling  8):

as it is a "medical device" use of the AWG is actually forbidden - because no complete galvanic isolation to the power grid

I am quite curious, though, why there seems to be a sudden influx of new users all doing diy medical devices recently.

it'll be 'aight, just remember to mount your scratch monkeys, though.
 
The following users thanked this post: tooki, Andree Henkel

Offline DiodeDipShit

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Re: Amplifying a function generator output
« Reply #5 on: April 05, 2024, 04:39:25 pm »
Abeyer,  Thank You for leading the way to :   The Jargon File  .....   http://www.catb.org/jargon/html/
Any five fifty five will do ......
 


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