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JoKKeR
Joined: 14 Feb 2008
Posts: 92
Location: Estonia
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 18 Aug 2008 14:16 transistor an line out |
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Is there any possibility to drive transistor as switch by using audio signal from line out ? Efficient & simple will work like a charm.
Iv already created Signal what is pulsed DC...
So far as i know to use transistor as switch theres nothing complicated coz voltage and current should do the "trick"
Do i need to ground something down ?
What about a connecting line out to base, will it work just to connect base line out "positive something" with base.
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JoKKeR
Joined: 14 Feb 2008
Posts: 92
Location: Estonia
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18 Aug 2008 23:04 driving lineout |
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Anything ?
Although can i exceed 20000 Hz limit ? Signal will be really simple... On what depends tease limitations ? Is the sound card driving (control) part behind it or ???
Can i clock sound card somewhere from bios or something ?
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18 Aug 2008 23:04 Ads |
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Faizan Jawaid
Joined: 17 Jul 2008
Posts: 195
Helped: 17
Location: Karachi, Pakistan
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19 Aug 2008 5:50 Re: Driving transistor as swich from line out. |
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| Im not sure what u wanna do with line out...But if u wanna exceed the 20KHz limit, the sound cards are built to generate audible frequecies (20-20KHz). I dont think sound cards are designed to generate ultrasonic signals (>20KHz)...And if u simply wanna drive a transistor with line out u can do that...Choose a transistor with High hFE ratings...and connect the base of transistor to line out...
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FvM
Joined: 22 Jan 2008
Posts: 5160
Helped: 767
Location: Bochum, Germany
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19 Aug 2008 7:29 Re: Driving transistor as swich from line out. |
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| The only advantage of a PC sound card line out is the ability of playing *.wav files without writing a line of code. Apart from that, any digital interface, e. . printer port, RS232 would be better suited to drive a switch transistor.
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