نقشه آمپلی فایر قوی 400W وبسیار ساده(مخصوص بلندگوههای بزرگ)

[MAHMOODI]

400 Watts High Power Output Amplifier TDA7294 with A1943-C5200, K1530-J201, A1302-C3281 Circuit Diagram


آمپلی فایر 400 وات فوق العاده قوی
که برای از این نقشه میتوانید به عنوان آمپلی فایر ارگ و یا آمپلی فایر برای استفاده از جشن ها استفاده کنید
در این مدار از ای سی TDA7294 استفاده شده
و هر کدوم از این زوج ترانزیستور ها که در دسترس داشتید میتوانید استفاد کنید
A1943-C5200 یا K1530-J201 یا A1302-C3281
این هم توضیحات انگلیسی در مورد این مدار

The famous SGS-Thomson Microelectronics ST was a Hi-Fi High Power DMOS TDA7294 amplifier circuit, the bile of his good taste, thanks to its internal circuit between input and output devices, field effect, they are softly rounded, tender.
But the amplifier with its mounting only a single TDA7294 power only 70 watts, the right of access is BTL is 100 watts from the top down, do not feel to mitigate this power. Tests, the author of several used to be TDA7294 level, direct-drive 3:59 pairs of parallel transistor high power, high current output, the output power of 400 watts mono, and the circuit support and easy to debug no need to reliably basically retained ICR, a solid and performance.
Ruzuo The following figure shows the feedback resistor R6 is better for the author of the Ω value in the Debug 22 k suitable R6 also decided that to win the circuit, increasing the gain value.
Quiescent current depends on the strength of R7, R8, provided their value in the next 10 k Ω, the circuit in the Group A state quiescent current working set of 100 mA ~ 2A, the author of 30 k Ω, the circuit in the group B and relatively stable performance with no radiator in 2/3 volumes, promoting the President of 10 inches and 10 minutes later, power was not feeling that hot “thickness strong enough.
The author examines the power of the T1, T2, was A1943/C5200, K1530/J201, A1302/C3281 K1530/J201 the best sound quality, very soft Naiting. A data card, the power of 200 watts, in Group B Working with a small heat sink (I use 14 cm x 5 cm x 3 cm) to meet their cooling needs. The commissioning of the system without ring box.