LM3886 integrated amplifier is a very popular application I have made a custom design I’ve done, I share it. There are differences between the PCB primarily with photos, some of the material in my...Electronics Projects, Stereo Amplifier Project with LM3886
"audio amplifier circuits, ic amplifier, "
LM3886 integrated amplifier is a very popular application I have made a custom design I’ve done, I share it.
There are differences between the PCB primarily with photos, some of the material in my hand because of some values in the development stage. – you get based on the drawing of the PCB.
the value for Res: (Vamp-20V)/70mA power (Vamp-20V)x70mA the value for Res tone: (Vamp-20)/30mA power (Vamp-20V)x30mA
The amp feeds LM3886 Datasheet you exported the file and accordingly these resistors should be selected according to the impedance of the speaker should be calculated.
the + and – supply routes, lines and the speaker of the day should be covered with solder.
Rain for resistors in the 10-15K can be selected according to the choice between. My suggestion is 10kohm.
The output of the Mean number of lm3886 3, coil 1.2 mm wire leg on top of my fit 10 rounds of resistors 2W resistors, I used this way.
Lm3886 insulate it from the cooler and regulators.
LM3886 Amplifier Project
The main purpose that I used the heatsink for the regulator Tone Control capacitor (15000uF) between the opamp with the shield (shield) on the task. So necessarily must be connected to the GND line.
If you used a metal box, that’s my proposal. The circuit in o cable with metal card holders or the box where it says (on the left that thick 1-1.5mm2) the connection should be made. Gnd pots on the circuit in a metal box for the line I don’t need to link to. Except gndy necessarily need to be metal. In the same way, LM3886 without coolers metal box, must be connected to the chassis of stars.
Bounding main supply and AC cables or speaker protection or pictures like that in (especially hop. for protection) shielded cable should be selected.
apart from this, I would recommend that insurance be used in pcbsin. If capacitors were to be added it would be nice if, between open.
the Therm A:, lm3886 normally have thermal protection, but as an additional protection, the thermostat can also be used )optional) . In this case, the current pass is so cold when the thermostat is normally closed at 60-70 degrees can be used. If you did not, that episode short-circuit should be made.
Also some omissions here were drawn thicker thicker the wire should be connected to the PCB. 0.8-mm is recommended.
Diode Bridge 6-8A (KBU10M, KBU8M etc.) can be used.
Quality design a beautiful Amplifier circuit have all the details oscilloscopes and voltage measurements PCBs have specified additional circuit diagrams 100W HI-FI Amplifier THD: ~0.005% (measured) sim’d: 0.002% Power into 8ohm: 60 watts Power into 4ohm: …
The Pass Aleph 30 is the first of the second generation of Aleph single-ended Class A power amplifiers. This design results from my commitment to create the best sounding product, a simple circuit having the most …
Mono power module, based on LM3886 application. He enjoys very high popularity and good reputation even among audiophiles who are “overly sensitive to everything that is integrated”. The LM3886 integrated circuit is based on bipolar transistors. …
ZEN amp Nelson Pass had 94 published an article where he described the realization of ZEN amplifier, a MOSFET amp class A 10-watt extremely simple or rather simple in the extreme.The reading of the article and …
TDA7294 Integrated Amplifier in a lot of devices are being used by different companies based on TDA7294 great little sound system of popular brands are also dealing with electronic amplifier circuit with a lot of people …
The design is very good speaker guitar amplifier dc protection circuit 5 band equalizer amplifier amplifier parts on the floor of the pre has Irfp240 Irfp9240 MOSFETs used. Input amplifier voltage gain and control area +/-7five …
A previous article, I shared my “TDA7294 Stereo amplifier circuit of controlled Loudspeaker-protected tons of” project was a more compact amp. Designed for use on my computer. Amplifier TDA2030, popular with LM1875, the sight of TDA2040, …