TL071 MOSFET Audio Amplifier 1 x 70w

TL071 MOSFET Audio Amplifier  general description: 

   This simple mosfet power audio amplifier circuit, with TL071 and 2 mosfets (IRF9530, IRF530) power amplifiers can deliver up to 45W on 8 ohm. This schematic is based on Siliconix application and is based on variations of voltage on the 2 resistors serial inserted on the voltage supplier of the operational amplifier driver. The mosfet transistors must be mounted on a heatsink at least 1K/W.  Amplifier efficiency is 70%, distortions at cut frequency were at most 0.2% at 20Hz on 8 ohm and 10W. With a power supply of +/- 30V the mosfet audio amplifier can deliver 45W on 8 ohm and 70w on 4 ohm. Remember that this audio amplifier is not protected on short circuits so every time you switch on check to see if the speaker is connected.

MOSFET Audio Amplifier  Circuit diagram:

Subwoofer Amplifier Circuit 30W

 Subwoofer Amplifier Circuit 30W description:

     This circuit with 30w output Power circuit. This Amplifier circuit is very suitable for use in subwoofer amplifier system based on IC SI1030G. Amplifier has 30W output with 8 ohm impedance. Supply voltage required minimum of 12 volts and a maximum of up to 22 volts DC.

 Subwoofer Amplifier Circuit 30W Circuit diagram:

 Subwoofer Amplifier Circuit 30W

  Subwoofer Amplifier Circuit 30W Partlist:

R1 = 100K
R2 = 1R
C1 = 2.2uF
C2 = 100uF
C3 = 47uF
C4 = 100nF
C5 = 10uF
C6 = 47uF
C7 = 100uF
IC = SI1020GL , SI1030G

Audio Amplifier 1000W wtih active speaker

Audio Amplifier 1000W description:

I think you've seen or even have an active speaker and there is written 1500 watts PMPO (Peak Music Power Output), make no mistake this is different from Power Amplifier Active Speaker, I often dismantle such Active Speaker in it only a power with power no more than 150 watts by using the transformer 2-3 Ampere. PMPO is not a real power which is issued by the Power Amplifier, but counting all the speakers that there is, for example: if there are 5 pieces of speakers on each channel and each speaker has a power of 10 W then it is 100 W PMPO.

Audio Amplifier 1000W circuit diagram:

While this 1000 Watt Power Amplifier minimal use transformer 20 Ampere. And the output of Power AmplifierDC voltage contains approximately 63 volts, with currents and voltages of this magnitude, this 1000 Watt Power Amplifier will not hesitate hesitate to destroy your woofer speakers to connect. To overcome that then before the speaker on connects to 1000 Watt Power Amplifier must be in pairs Speaker Protector.

Actually if you want to create a Power Amplifier with great power does not have to make a Power Amplifier with great power. Example: you want to create a Power Amplifier with 10 000 Watt power. You do not have to assemble a Power Amplifier with power of 10,000 watts, but you assemble the power Power Amplifier Small but many, such as you assemble the Power Amplifier with 1000 Watts of power for as many as 10 pieces, it will produce 10 000 Watt Power Amplifier helpless.

Audio Amplifier 1000W parts

    Circuit uses power transistors pair of 5 x 5 x 2SA1216 and 2SC2922 and 2SC1583 use a differential amplifier that actually contains 2 pieces of transistors that are in containers together. Why use such built-in amplifier differental tujuanya so identical / similar, could have uses 2 separate transistors but can result in amplifier so it is not symmetrical.

Stereo Power Amplifier 3000W

Stereo Power Amplifier 3000W Description

This power amplifier circuit using a transistor amplifier from the front, signal splitter, driver and power amplifier. Current consumption required is quite large power amplifier that is 15-20 A 1500W power amplifier circuits for this. Supply voltage needed by the power of this amplifier is the optimal working order symmetrical 130VDC (130VDC-130VDC ground). 1500W amplifier circuit below is a picture series of mono, stereo if you want to make it necessary to make two copies of the circuit. For more details can be viewed directly image the following 1500W power amplifier circuit. In the above series of power amplifier 1500W is equipped to control a DC Offset function to set the power amplifier is turned on at the moment and with no input signal then the output should be 0VDC. Then also equipped with a flow regulator to the power amplifier bias. Final part of this power amplifier requires adequate cooling to absorb the heat generated. Power amplifier is not equipped with a speaker protector, therefore it is necessary diapsang protector on the speaker output so that when the power amplifier is not the case turned on the beat to the speaker that can damage the speaker. The 1N5404 diodes can withstand a peak non-repetitive current of 200A. Higher rated components may be used if desired. The voltage rating needs to be at least 400V.

Stereo Power Amplifier 3000W crcuit diagram

Stereo Power Amplifier 3000W

TDA1562Q Audio Amplifier 50W

 TDA1562Q general description:

Philips designers have further improved a number of properties of the IC, among which the power output. According to the Philips datasheet, the improved device, the TDA1562Q, can deliver 70 watts into 4 ohms, but that is at the cost of the distortion, which at 10 per cent is rather too high, even for in a car. The prototype of the design described in this article provides 54 watts into 4 ohms at 1 per cent distortion. Since the number of requisite external components is smaller than in the case of the earlier device, the printed-circuit board is even more compact than that for the February 1995 amplifier.

 TDA1562Q features:

• Low power dissipation during reproduction of music signals
• Proof against short-circuits
• Protection against excessive temperatures
• Standby switch
• No power-on or power-off clicks
• Visible error indication
• Measurement results (at Ub=14.4 V)
• Supply voltage 8–18 V
• Sensitivity 760 mV r.m.s.
• Input impedance 70 kΩ
• Power output 54 W r.m.s. into 4 Ω (f=1 kHz; THD+N=1%)
• Harmonic distortion (THD+) at 1 W into 4 Ω: 0.046% (1 kHz)0.29% 20Hz) at 35 W into 4 Ω: 0.12% (1 kHz) 0.7% (20 kHz)
• Signal-to-noise ratio (with 1 W into 4 Ω) 88 dBA
• Power bandwidth 7.5 Hz – 185 kHz (at 25 W into 4 Ω)
• Quiescent current about 135 mA (‘on’)

TDA1562Q applications:

• Television sets
• Home-sound sets
• Multimedia systems
• All mains fed audio systems
• Car audio (boosters).

TDA1562Q amplifer diagram:

TDA1562Q pcb:

TDA1562Q part lists:

• R1= 1MΩ
• R2 = 4kΩ7
• R3 = 1kΩ
• R4 = 100kΩ
• Capacitors:
• C1,C2 = 470nF
• C3,C4 = 10µF 63V radial
• C5,C6,C8 = 4700µF 25V radial
• (18mm max. dia., raster 7.5 mm)
• C7 = 100nF, raster 5 mm
• Semiconductors:
• D1 = high-efficiency-LED
• IC1 = TDA1562Q (Philips)
• Miscellaneous:
• S1 = single-pole on/off switch
• Four spade connectors, PCB mount
• Heatsink for IC1 (Rth<2.5 K/W)
• PCB, order code 000004-1 (see Readers Services pages)

TDA7560 Audio Amplifier 4x50W

TDA7560 general description:

TDA7560 is a 4 x 45W QUAD BRIDGE car audio amplifier plus HSD. The TDA7560’s inputs are ground-compatible and can stand very high input signals (± 8Vpk) without any performances degradation. If the standard value for the input capacitors (0.1mF) is adopted, the low frequency cut-off will amount to 16 Hz. The TDA7560 is a breakthrough BCD (Bipolar / CMOS / DMOS) technology class AB Audio Power Amplifierin Flexiwatt 25 package designed for high power car radio. The fully complementary P-Channel/N-Channel output structure allows a rail to rail output voltage swing which, combined with high output current and minimised saturation losses sets new power references in the car-radio field, with unparalleled distortion performances.

TDA7560 features:

• 4 x 50W/4W MAX.
• 4 x 45W/4W EIAJ
• 4 x 30W/4W @ 14.4V, 1KHz, 10%
• 4 x 80W/2W MAX.
• 4 x 77W/2W EIAJ
• 4 x 55W/2W @ 14.4V, 1KHz, 10%
• EXCELLENT 2W DRIVING CAPABILITY
• HI-FI CLASS DISTORTION
• LOW OUTPUT NOISE

TDA7560 amplifier circuit diagram:

TDA7560 Audio Amplifier 4x50W

TDA7560 layout:

pcb layout for TDA7560 Audio Amplifier 4x50W

pcb layout TDA7560 Audio Amplifier 4x50W

TDA8922 Audio Amplifier 2 x 25W

TDA8922 general description:

The TDA8922 is a high efficiency class-D audio power amplifier with very low dissipation. The typical output power is 2 × 25 W. The device is available in the HSOP24 power package with a small internal heatsink and in the DBS23P through-hole power package. Depending on the supply voltage and load conditions, a very small or even no external heatsink is required. The amplifier operates over a wide supply voltage range from ±12.5 to ±30 V and

consumes a very low quiescent current. TDA8922 Audio Amplifier 2 x 25W

TDA8922 features:

• High efficiency (∼90%)
• Operating supply voltage from ±12.5 to ±30 V
• Very low quiescent current
• Low distortion
• Usable as a stereo Single-Ended (SE) amplifier or as a mono amplifier in Bridge-Tied Load (BTL)
•  Fixed gain of 30 dB in Single-Ended (SE) and 36 dB in Bridge-Tied Load (BTL)
• High output power
• Good ripple rejection
• Internal switching frequency can be overruled by an external clock
• No switch-on or switch-off plop noise
• Short-circuit proof across load and to supply lines
• Electrostatic discharge protection
• Thermally protected.

TDA8922 aplications:

• Television sets
• Home-sound sets
• Multimedia systems
• All mains fed audio systems
• Car audio (boosters).

TDA8922 circuit:

Circuit diagram TDA8922 Audio Amplifier 2 x 25W

TDA8922 layout and pcb:

pcb layout TDA8922 Audio Amplifier 2 x 25W

TDA8922 datasheet: