Skema Rangkaian Driver Power Amplifier
I've made gainclone amplifier that uses a LM3886 chip. It's one of the best compact HiFi amplifiers.
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It is a Class AB-A (conjugate) amplifier that has a fully symmetrical structure (push-pull), this mean that the sine waves produced, will produce a +, - output. A 25 volt (+/- Dual Rail), 5 Ampere, toroidal transformer was used to supply electricity for the amp. There's also a PCB Layout provided for the project. I found an old CPU processor attached to a gorgeous heatsink & fan, I recycled both of them and drilled holes for it to be mounted on the LM3886 chips. Specifications: - Maximum Output Power: 68W RMS - 108W Peak - Frequency Response: 7Hz-25kHz (Filtered ⇒Linkwitz) - THD:%0.03 at 60W - SNR: 110dB at 60 W - 92.5dB at 1W - Output Class: AB-A (Conjugate) - Auxiliary Features: DC/AC Short circuit protection and thermal protection. - Working Voltage/Power: 12-94 Volts (Dual Rail), 1-10 Amperes - Audio Features: Input Mute Funtion (100% silent = no input) Too bad I had a late documentation, that's why I only have a few pictures of the steps and procedures. Due to the late documentation, I had to get images from the source.
Some of the pictures are not mine, there are no claims that the PCB designs are mine nor the diagrams, although there where some modifications made by me for the amp. What Is A Gainclone?
Untuk membuat rangkaian power amplifier tidak memerlukan banyak komponen eksternal, karena power amplifier ini hanya menggunakan sistem power supply otomatis. Gambar Skema Rangkaian Power Amplifier. Power Amplifier merupakan penguat akhir bagian sistem tata suara yang dapat berfungsi sebagai penguat sinyal audio yang pada dasarnya merupakan.
Back in 1999, relatively unknown manufacturer released the 'Gaincard' to rave reviews. It immediately caused controversy because it was based around a $5 power amplifier IC (Integrated Circuit), yet a typical setup would cost you around $3300.
A Gainclone in the other hand refers to any DIY amplifier that uses a LM3875/ LM3886 as it's main component. Download software alat musik pch. What's So Special About It?
The gainclone only uses small amounts of space, it's built with a minimal supply of components, yet giving a great HiFi result. It beats the hell out of those modern HiFi amps, it produces 2x68 watts of power, with a Total Harmonic Distortion of 0.03%THD and built on a 2x3 PCB board!
So why doesn't the audio industry use it? I'm not really sure. All of these sounds 'too good to be true', I recommend this project for those who are still starting on their DIY HiFi amp hobby, since it only uses some few components. What's A Power Amp? A power amp is a amplifier with no preamp, volume control, tone control, or any auxiliary devices attached to it. It's just pure simplicity.
Coming Soon: DIY HiFi Preamp With Tone Control (Works With The Gainclone). I can tell that parts in the US are highly expensive. Here in the Philippines a typical resistor would cost 0.25 centavos ($0.0006), while in america, a typical resistor would cost $1 each. There's a large difference. Also, parts are available here almost everywhere. That's the beauty of living here when you have a hobby of electronics. My project cost me P870.00 ($21.75) all in all.