Car Amplifier Hybrid Chip Amp TDA7294 2SC5200 2SA1943 Schematic and PCB Design
Car Amplifier Hybrid Chip Amp TDA7294 2SC5200 2SA1943 PCB Design
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.
All electrolytic capacitors not, except C2, film, can be replaced input capacity of .22 uF. Power adjustable resistors are greater than 0.25, while 0125 is still insufficient.
Hybrid output transistors chip amps mounted monoblock power amplifier and bent so that its position parallel to remove the motherboard, heat, a heater for the transistor 2SC5200 and 2SA1943 and necessary. Do not forget to provide insulation and thermal grease between the heatsink and transistors. Inductor L1 unframed, contains the diameter of the wire wound around 1 mm in two layers and 25 turns, the inside diameter of 5 mm.
To build a simple scheme for high power car amplifier. For more details, press PCB here.
Car Amplifier Hybrid Chip Amp TDA7294 2SC5200 2SA1943 Schematic
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