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fasterstill
Joined: 25 Feb 2007
Posts: 5
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 Posted:
Sat Jun 16, 2007 1:21 pm Post subject:
looking for someone to built circuit |
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Hi Guys
Looking for someone to build me a circuit to drive a piezo.
Requirments:
up to 30v output from 12v supply, prob tranny on output.
frequency range 15-38khz, only one output frequency required at a time but the ability to tune to anywhere between above is needed.
If interested PM me, I Will forward full requirments then.
Cheers for reading guys.
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neon
Joined: 25 Feb 2006
Posts: 594
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Sat Jun 16, 2007 2:20 pm Post subject:
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| look up LM555 TIMER 8 pin IC easy to use million of pieces of info on the internet on how to biuld it any frequency you want up to 1mhz to .0001 sec or lower 30 v no problem just add a power 50v complementary transistors |
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fasterstill
Joined: 25 Feb 2007
Posts: 5
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Sat Jun 16, 2007 3:59 pm Post subject:
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| neon wrote: | | look up LM555 TIMER 8 pin IC easy to use million of pieces of info on the internet on how to biuld it any frequency you want up to 1mhz to .0001 sec or lower 30 v no problem just add a power 50v complementary transistors |
Sorry should add im looking for someone to build as im not an electronics enginneer, i just fix computers so the bit about 50v transistors has gone over my head. I was under the impression that the only way to get 30v from a 12v supply was to use a transformer?
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neon
Joined: 25 Feb 2006
Posts: 594
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Sun Jun 17, 2007 4:27 pm Post subject:
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| an engineer you are not as an engineer first thing that i will require is a work statement what is required what it has to do ,how big, and so forth, if you want help in any forum you must provide ample information otherwise we all assume different things in our mind. and to top it all it can be done much simpler and not exactly like you perceived. take care |
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fasterstill
Joined: 25 Feb 2007
Posts: 5
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Sun Jun 17, 2007 4:59 pm Post subject:
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| neon wrote: | | an engineer you are not as an engineer first thing that i will require is a work statement what is required what it has to do ,how big, and so forth. |
Actualy i trained as a mechanical enginneer and had my own CNC shop for several years so yes i do know about workstatements, at the moment im just making a general enquiry as to wheather anyone here might be interested in doing such a thing.
| neon wrote: | | and to top it all it can be done much simpler and not exactly like you perceived. |
Can you back that up with some info please. You just got through telling me i did,nt supply enougth info. I,ve been looking in to this for 2 months now and the concensis of opinion is from a 12v supply this is the only way to go.
If you know different please say. |
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neon
Joined: 25 Feb 2006
Posts: 594
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Mon Jun 18, 2007 6:55 pm Post subject:
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| if you want this cheap and dirty drive a 100ohm speaker from an LM555 at the other end same same speaker. i tried that once for motion detector it worked. |
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