Sound Energy as source of electrical energy for battery charging

[greaver]

can anyone help me kung anong dapat kong gamitin na transducer dito, sabi ng adviser namin microphone daw. Nag search na kami sa net at mic nga ata talaga. pero pano namin gagawin pra makapagproduce sya ng electrical energy na enough to charge a battery? thanks...

[insomartin]

ngayon pa lang sasabihin ko... it won't work. kung windmill nga hirap na hirap. what more kung sound...
meron bang technology na gumagamit na nito?

[carlsfootprints]

i also believe na mahihirapan kayo sa pagcoconvert ng sound to electrical energy.. i just dont know if this is possible..

hmm.. ayon sa nabasa ko sa wiki, microphones are primarily dependent on vibrations produce by the sound in the internal components of the mic (e.g piezo).. hmm.. from sound ---> mechanical ---> electrical.. mukang may mga energy ng mawawala during energy conversions.. hehe..

[rdpzycho]

kailangan mataas na SPL (Sound Pressure Level) para maka-generate ng mataas na voltage/energy sa transducer. merong sensitivity ang mic at makikita 'to sa datasheet nila. kung mapapansin, kailangan pa ng mic ng amplifier para lang marinig ng tao, meaning mahihirapan talaga siya mag-charge.

maraming studies ng vibration to electricity, kukunin 'yung mga maliliit na vibrations galing sa paligid bago convert sa electricity. ang main research talagaa doon is 'yung transducer.

[WildSwan]

siguro pwede kung malalaman natin kung papano ginagawa ng Nokia ngayon yung charger nila na ang power source is stray RF signals.... hmmm

[carlsfootprints]

^

astig ung dinidevelop ng nokia ngaun.. napagkinggan ko din yan sa dzmm.. binalita na sa rf signals sa atmosphere natin kukuha ng energy.. cool..

[RaffT]

ok itong concept ah... hehehe ito ang VERY USEFUL lalo na bungangera asawa mo

the sound sensor can be a ceramic transducer(gumamit ka ng marami para mas higher ang output.. find a way na yung accumulated voltage eh PULSED VOLTAGE nyang ibibigay sa battery..

in due time, maCHARGE din yang battery..

[Gwenda]

This old topic is possible and feasible.  But do not expect to charge your AAs or Li-Ion batts.  Here's how you do it:

Sound is wave energy which is AC.  What you need is a constant sound source that you can harvest with a mic or piezo device.  Amplify it or put the signal thru a charge pump (diode-capacitor ladder).  If you have enough stages, you can store the DC into a super capacitor which acts like a battery.

Use it to power a joule thief circuit and you can light an LED.

[insomartin]

This old topic is possible and feasible.  But do not expect to charge your AAs or Li-Ion batts.  Here's how you do it:

Sound is wave energy which is AC.  What you need is a constant sound source that you can harvest with a mic or piezo device.  Amplify it or put the signal thru a charge pump (diode-capacitor ladder).  If you have enough stages, you can store the DC into a super capacitor which acts like a battery.

Use it to power a joule thief circuit and you can light an LED.

i really doubt it... prove it first.
get it on video.
then let's see how would it be possible.

[Gwenda]

Di ba yung mga gas ignitors ay piezo which produces thousands of volts?  So why can you not store this into a capacitor.  Kahit na millivolts lang ang generated ng transducer passed thru a charge pump.  My premise is that you first get a CONSTANT source of sound and amplify it.  It's up to the experimentor to prove this, I just gave an idea.