Tag Archives: TDA7294
The range of supplies that can be accommodated and outputs available now is large (the stereo TDA7265 (25+25W/8R) is useful for small hi-fis, stereo TVs, etc) and high efficiency class D designs can prolong battery life. The 50W+ TDA7293/4 series, which have DMOS output devices, offer a robust solution (the ’3′ can be paralleled for high currents into low impedances) and are seen in a number of ‘audiophile’ amplifiers and kits, like the Velleman K8040 and the Quasar 1218. In excess of 100W can be obtained from a single TO3 can with the TPA12A and LM12CL.
TDA7294 with bridge connection on the circuit can give 200W power 2 x TDA7294 PCB size is very small CPU heatsink mounted is available used. 2x100W 200W mono or two-channel stereo output can be used as a single. All jumpers on the circuit board that all jumpers open short 200 watts mono subwoofer or hifi stereo systems 2x 100 watts.
Monoblock Amplifier circuit TDA7294 based on an article entitled “Improvement of the power amplifier IC TDA7294 Journal based on the radio schematic. This amplifier has a single car has a sufficiently high reliability, high capacity, high-quality bass. Monoblock power amplifier circuit is shown above. The only difference from the original circuit in the output transistor with a better replacement.
I would like to present an audio amplifier circuit with small TDA7294. You can follow with PCBs and my job. TDA7294 80 watt amp chip is very popular with high intensity, fleas are feeding your home audio system.
A major application of the TDA7294 is the bridge configuration (bridge), where two TDA7294, manage output. In this configuration, the value of the load should not be less than 8 Ohm.
The main advantages of this amplifier are:
- High power with low voltage.
- Significant power output, even at high load values ??(16 Ohm). With a load of 8 Ohm
The proposed circuit for a high efficiency amplifier which can be adopted for both hi-fi and wireless applications.
Constraints in implementing high power solutions are the power dissipation and size of the supply. These are both due to the low efficiency of the traditional approaches of class AB car audio amplifiers.
The TDA7294 is a monolithic MOS power stage, the (100V with no signal applied) for the 90V supply can deliver output currents while up to ± 6.5 A.