50 watts power amplifier Archives - Amplifier Circuit Design https://amplifiercircuit.net/tag/50-watts-power-amplifier Amplifier Project Schematic Diagram Fri, 23 Dec 2011 07:40:28 +0000 en-US hourly 1 103688205 50 Watt Audio Amplifier based L8063 https://amplifiercircuit.net/50-watt-audio-amplifier-based-l8063.html https://amplifiercircuit.net/50-watt-audio-amplifier-based-l8063.html#respond Wed, 17 Aug 2011 01:43:58 +0000 http://amplifiercircuit.net/?p=309 This 50 watt audio amplifier based L8063 circuit diagram is simple and easy to build. Input can be from radio, […]

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]]> 50 watts power amplifier based L8063This 50 watt audio amplifier based L8063 circuit diagram is simple and easy to build. Input can be from radio, TV or your mp3 player device. This circuit has a phono input for a record player, guitar, microphone or other un-amplified source. This circuit can also be for a subwoofer amplifier, of course, by adding an active crossover circuit subwoover before input.

Parts list :
R1 : 200 Ohm 1 / 4 W Resistor
R2 : 200K 1 / 4 W Resistor
R3 : 30K 1 / 4 W Resistor
R5 : 1K 1 / 4 W Resistor
R6 : 5K 1 / 4 W Resistor
R7, R10 : 1 Meg (5%) 1 / 2 W Resistor
R8, R9 : 0.4 Ohm 5 W Resistor
R11 : 10K Pot
R12, R13 : 51K 1 / 4 W Resistor
R14 : 47K 1 / 4 W Resistor
C1 : 100uF 35V Electrolytic Capacitor
C2 : 0.011uF Capacitor
C3 : 3750pF Capacitor
C4, C6 : 1000pF Capacitor
C5, C7, C8 : 0.001uF Capacitor
C9 : 50pF Capacitor
C10 : 0.3uF Capacitor
C11, C12 : 10.000 uF 50V Electrolytic Capacitor
U1, U2 : Op Amp 741
U3 : ICL8063 Audio Amp Transister Driver thingy
Q1 : 2N3055 NPN Power Transistor
Q2 : 2N3791 PNP Power Transistor
BR1 : 250 V 6 Amp Bridge Rectifier
T1 : 50V Center Tapped 5 Amp Transformer
S1 : SPST 3 Amp Switch
S2 : DPDT Switch
F1 : 2 Amp Fuse
SPKR1 : 8 Ohm 50W Speaker
MISC : Case, Knobs, Line Cord, Binding Posts Or Phono Plugs (For Input And Output), Heatsinks For Q1 And Q2

General purpose 50 watt audio amplifier based L8063

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]]> https://amplifiercircuit.net/50-watt-audio-amplifier-based-l8063.html/feed 0 309 25/50 W Power Amplifier Class D based MAX9709 chip https://amplifiercircuit.net/2550-w-power-amplifier-class-d-based-max9709-chip.html https://amplifiercircuit.net/2550-w-power-amplifier-class-d-based-max9709-chip.html#respond Wed, 27 Jul 2011 16:05:04 +0000 http://amplifiercircuit.net/?p=89 Despite the relatively small power output specified in the title of the article, it has one distinct advantage – the […]

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]]> 25 watts MAX9709 StereoDespite the relatively small power output specified in the title of the article, it has one distinct advantage – the acoustics can be connected directly to pins – no extra coils is not required – as they say – all included.

Features chips as follows :

Supply voltage,
 :10 … 22V
Supply current absence of a signal, mA :20mA
Maximum Power Output:
in stereo (CG = 10%) :29W
in mono (CG = 10%) :50W
“Normal” Power Output:
in stereo (CG = 0.1%) :12W
in mono (CG = 0.09%) :22W
S / N ratio (weighted) :96%
Efficiency (max) :87%

The device has built-in overload protection, output current limiting, suppression of the “click-and-pop” when you turn on and off. There is also a programmable gain amplifier and switch-off temperature.

50 watts MAX9709 Mono

As can be seen, the device is connected to two power supplies – 22 V – for analog and digital 5-12V. If it is assumed that the chip will be powered by 12 volts, the findings for the power supply can be combined. Otherwise, it is enough to feed the analog part to connect any integral stabilizer – TIPPING or LM.

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