hello,
I have 2 requirements that i hope someone could help me on:
1) I have a certain circuit that is able to drive an 8Ohm speaker with a maximum output of 1watt. the voltage output is measured from 0 to 5V. The sound however , is quite soft and I need to install this inside a vehicle which is expected to be noisy. I need this audio output to be amplified to some good degree (about 10 - 20watts to my estimate). The Amp has to be of high fidelity as the output is not of the best quality. My problem is I am not familiar with audio circuitry and there seem to be numerous solutions on the web. can anyone recommend a good solution, possibly 1 single chip solution that does all the analog handling and is powerful enough to drive a 10 - 20w speaker. Also, is it possible to connect the speaker ouput of my current set up to this amp dirrectly without worrying about impedances etc?
???
audio circuit-----(output is good for 8Ohm skr)---------------------->10-20w Power Amp
2) I need a vibration sensor that is able to detect strong vibrations in a vehicle (e.g. when the tires hit a hump). ideally this solution in also single chip.output could be a simple ttl logic or analog voltage.
If possible, solutions that can be bought individually like from arrow / digikey would be best as this is only for hobby-grade.
any help is much appreciated.
- Chris
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Audio power amp and vibration sensor
2008-06-22 by xolang1