TL494 Class D Amplifier SMPS 390W 32V
TL494 Audio amplifier switch mode power supply smps . TAS5611A Class D Amplifier Circuit Project The performance of the power unit should be about 400 Watts smps. The power source may be elected by the classic or switched. Because... Electronics Projects, TL494 Class D Amplifier SMPS 390W 32V "power electronic projects, smps circuits, smps projects, smps schematic, tl494 circuit, " Date 2019/08/04
TL494 Audio amplifier switch mode power supply smps . TAS5611A Class D Amplifier Circuit Project The performance of the power unit should be about 400 Watts smps. The power source may be elected by the classic or switched. Because of the size and weight of the transformer of the classical sources is elected a switching power supply. This is a double acting the involvement of the switching transistors, which are controlled by the integrated circuit TL494
This place is connected to power transformer TR1. On the other side of the halfbridge output are power switching transistors MJE13009. Resistors R1 and R2 balance the leakage currents of the capacitors and thus help to keep an artificial center in the middle of the power supply voltage. Capacitor C5 are used to separate any dc components that arises from varying the switching of transistors. Diodes D3 and D4 are doing swells from the power of the transformer (ETD49) back to the filter.
Class D Amplifier Power Supply TL494 SMPS Circuit
Parallel-connected components composed of R11 and C8 partially compensates for the the inductive character of the load. Power transistors are driven from across the current excitation transformer TR2. Winding to the bases are attached so as to implement positive feedback.
On the secondary side of the power transformer are two windings. As the main rectifier are used fast double diodes BYV32/200(2x8A). Voltage is filtered LC member composed of L1 and C9. Resistor R12 serves as a minimum load. The second secondary winding is rectified with Schottky diode, filtered capacitor C11. To obtain an accurate 12V voltage is used the regulator IC2.
tl494 smps circuit pcb schematic all files alternative links:
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