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2 x 175 W Audio Circuit Amplifier


Circuit Diagram:
Circuit Diagram 2 x 175 W Audio Circuit Amplifier

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200W Subwoofer Amplifier Circuit

Circuit Description
Here is a circuit that uses a mosfet amplifier amplicable for subwoofer as the main booster, or the basis of this boosterAmplifier. Circuit which uses MOSFET Power Amplifier is powered by the output more than 200W Speaker 8 Ohm impedance. We also include a suitable power supply circuit with the use of MOSFETamplifier with 200W of power, not only of his course Schematic diagram for the layout design is also already there.
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TDA7294 Audio Amplifier 2 x 80W

TDA7294 general description:
This circuit described here uses two cis tda 7294 for use in stereo (2 x 80Watts) or bridge mode (1x 180 Watts), to configure this setting just four jumpers. To facilitate mounting the circuit has power supply attached. The power is kind of simple symmetrical with a bridge rectifier 6A, and two large electrolytic capacitors , 10000μF the 22000μF/50v. This Power supply will for the two modules. The processor is recommended 22-0-22 to 28-0-28 / 5A, depending on the quality of the transformer is recommended at least 6 amps of current.


TDA7294 features:
High power performances with limited supply voltage level.Considerably high output power even with high load values (i.e. 16 Ohm).Rl= 8 Ohm, Vs = ±25V Pmax = 150 WRl=16Ohm, Vs = ±35V 
TDA7294 circuit diagram:

TDA7294 layout:TDA7294 pcb:

Datasheet for TDA7294:Download
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TDA2030 Audio Amplifier 1 x40W

TDA2030 general description:    Although there are a number of hybrid output modules on the market, very few of them combine compactness with reasonable price and good performance. One of these few is SGS's used in the present amplifier. The design of the amplifier is straightforward: a power op-amp followed by two output transistors. The audio signal is applied to the non-inverting input of power op-amp IC1 TDA2030 via socket K1 and capacitor C1. The supply current to the IC varies in accordance with the input signal. Consequently, there will be a similarly varying voltage drop across resistors R6, R7, R8, and R9 since these are in the supply lines to the op-amp. As long as the current is lower than about 1A, the voltage drop across the resistors will be insufficient to switch on transistors T1 and T2. This means that outputs up to 2 W into 4 ohm are provided entirely by the op-amp. Once the output current exceeds a level of 1A, the transistors are on and contribute to the power …