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It was so clear. I just wonder that what if my mp3 player have not enough power output for speaker. I mean is it possible to wiring the same adapter to speaker as well as mp3player without amplifier. What is amplifier duty exactly ?
Dear friends,
I have a mp3 player that need 3.7 V. I hacked it and remove rechargeable battery. I will run with via external power supply.
I have 3W 4ohm speaker, mp3 player and 3.5mm male jack. So I have wired the speaker and jack, but there was not enough sound. So I need to supply speaker...
Knowledge is knowledge. Late or earlier doesn t matter friend. So you are right. Probably problem was resistance of cables, terminals so circuit. I was removed to electrolytic capacitor which is placed input, and it was still running the camera. But I placed again capacitor due to need balance...
Dear friends,
I have solved my problem thanks to you. I made DC coupler (battery shell) for Canon PowerShot SX150 and similar cameras that uses 2 AA battery. I made also 3.15V regulator for DC coupler, but I couldn't prepared how to video.
I hope this video will be helpful for you.
Dear friends,
Thanks for all of your ideas, advice, knowledge and efforts. I have solved my problem as following:
First I have almost abandoned my hope about this topic. I researched power transistors, capacitors, regulators... and thought about that why I don't use prepared circuit for LM338...
I found ACK800 ac adapter kit that is suitable for my camera. It is 3.15 V 2A. So I think 2A supplier will be enough for me.
I think about using power transistor as amplifier in order to get high current.
Link about high current voltage regulator with LM317...
Actually I have gotten 3.15V with LM338 circuit. There is no problem about Voltage supply, probably current amount could not enough for running camera.
I am not good in basic electronics. I started to electronic with arduino and learn it day by day. So I don't know exactly what is duty of...
I have also tried 5v 12A computer power supply with this circuit. I couldn't run it and got "change batteries" text, but this time I can look pictures what I take before. So It is almost certain that LM338 and circuit is not enough for my camera. Do you suggest MOSFET for this job ?
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I have done more suitable battery shell as used to AA battery terminals. I got good contact and saw warning that change battery. Probably next problem is the regulator circuit. I shared my last battery shell and regulator circuit.
I used LM338 which has 1.2-32V and 5A output range. And my...
I checked it again, and your are right, there is a barrier on positive side. Probably that is why the camera can't run. Positive side cannot touch to shell terminal. I will fix it tomorrow and try it again.
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First I will try to readjust positive terminal of shell. If I...
I had also a doubt about terminal of shell is contact to clips or not. I will be ensure its contact. Probably I will change terminals, maybe I might use brass to contact with clips, isn't it more suitable? I couldn't yet evaluate that my power supply enough or not, because first I have to ensure...
Dear friends,
I have Canon Powershot SX150IS Digital Camera which is run with two AA battery. I am an academician in Faculty of Agriculture. So I wanna observe to cotton leaf movement through different light directions. But my batteries are able to record video maximum a hour. I need 4-5 hours...
Re: Is it possible to use same pin for different function in Atmel microchips ?
You are right, these pins are digital and they will be input. Does it matter that it is analog or digital ? İf I use the true code, isn t it run ?
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