This wireless headphones transmitter assures a quality reception over 2 meters. The oscillator frequency is between 1750KHz and 3500KHz and for antenna we use a ferrite bar. IC1 amplifies the audio signal and TC1 is a buffer. D1 signals that the transmitter is on and is a voltage stabilizer for the oscillator .
L1 is a toroidal core T50-2 with 80 turns, 0.2mm Ø. L2 requires a 10-20cm ferrite bar, L2a has 3 turns, 0.6mm Ø coiled at ground end of L2b wich has 30 turns, 0.5mm Ø .
The current consumption of the wireless transmitter is <= 150mA and is to be used with this wireless headphones receiver.
Wireless headphones transmitter schematic
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Mahaya
indeed a very good website, especially for the electronic hobbyists all around the world. nice work mahn…keep it up.
Recently I had seen on of your post on one of the blog regarding wireless power transfer.Iam also doing a similar project in college,but could not progress much.
So it is my humble request to you to send me ur schematic of 3KW 11Ghz transmitter using quilostron.
Thank you
Recently I had seen on of your post on one of the blog regarding Wireless headphones transmitter & receiver schematic. Iam also doing a similar project in college,but could not progress much.
So it is my humble request to you to send me working principle of transmitter & receiver.
i m a b.tech ece final year student … i m in need of a circuit diagram RF wireless cellphone charger ….. plz can anyone help me .hnx….plz plz send me on mail navih4@gmail.com…..i shall be very thankful for this …….plz send me as soon as possible ….
i like this site because it is truly giving a free way to search.
can you help me in explaining about this circuit in detail? i want to understand the process of this circuit. please help me
gambar skemanya mana wireles transmiter nya? plis kirim ke e-mail saya =reycom70@yahoo.co.id
Nice post, I prefer wireless headphones myself.
Sir, can we more than 150mA source.
You can use any source that has a voltage output of 12 to 18V and the minimum output current of 150 mA, so in other words you can use even a 10A source.
Sir, can I use 500mA transformer.
im just looking for a wireless power transfer device(s).it is possible???
I have a hearing aid with earphone having specs 16mm, 32 ohm, 5mW. can I remove the earphone speaker and connect the wires to a audio in of headphone with specs 32 ohm, 150 mW. If not, how to make it work. Please excuse me for my poor electronics knowledge.