tailieunhanh - Mạch khuyếch đại công suất âm thanh

Khuyếch đại công suất âm thanh 4W-8W dùng TDA2005 Power Supply 9–18V at 1–2 A 8 W RMS/ch. at 2ohm 16V DC supply. 6W RMS/ 4ohm 16V DC supply 4W RMS/ 4ohm 12V DC supply 80 dBA. ~160 mV for full output ~31 dB maximum. C7-11=2200uF 16V C8-12=220uF 25V IC1=TDA2005 J1=2 Pole Terminal Block J2-3=3 Pole Terminal Block : MKð âm thanh 60W dùng TDA7294 Input sensitivity Input impedance Frequency response Slew rate Output power S/N ratio THD (40W into 8W) Power Supply R1=180ohm R2-3-5=10Kohm (50W into 8W) 10K 15Hz - 100kHz 10V/uS 50W into 8W ( THD) 82W into 4W ( THD) 105dBa (1W. | MẠCH KHUYÉCH BẠI CÔNG SUÁT ẦM THANH AUDIO POWER AMPLE IER Khuyếch đại công suất âm thanh 4W-8W dùng TDA2005 Power Supply 9-18V at 1-2 A Power output 8 W RMS ch. at 2ohm 16 V DC supply. 6W RMS 4ohm 16V DC supply THD 4W RMS 4ohm 12V DC supply @ 1W 4ohm at 1W RMS @ 4 Tần số ohm and 15V supply 15 Hz to 50 kHz -3 dB 1 Linh kiện R1 120Kohm 1 2W 5 S N ratio Input level Gain 80 dBA. 160 mV for full output 31 dB maximum. C1-9-13 100nF 100V MKT C7-11 2200uF 16V R2-4 1 4W 5 C2 220uF 25 V R3-5 33 ohm 1 4W 5 C3 10uF 25 V R6-7 1 ohm 1 2W 5 C4-5 25 V RV1 2X10Kohm Log. Pot. C6-10 100uF 25V C8-12 220uF 25V IC1 TDA2005 J1 2 Pole Terminal Block J2-3 3 Pole Terminal Block V MKĐ âm thanh 60W dùng TDA7294 Input sensitivity Input impedance Frequency response Slew rate 50W into 8W 10K 15Hz - 100kHz 10V uS Output power 50W into 8W THD 82W into 4W THd S N ratio 105dBa 1W 8W THD 40W into 8W 1kHz 20Hz - 20kHz Power Supply R1 180ohm R2-3-5 10Kohm -30Vdc C5-6 10uF 63V J2 3pin C7 22uF 63V J3 2pin 2 R4 22Kohm C8 33uF 25V R6 680ohm C9-10 1000uF 63V All Resistors is 1 4W 1 C1 63V MKT IC1 TDA7294 C2 63V MKT J1 2pin connector with step C3-4 100nF 100V MKT JP1-2 2pin Jumper with step Sơ đồ nguồn cung cấp Linh kiện TR1 230Vac 2X22Vac 80VA for single Amplifier C1 22nF 630V Polyester MKT C8-9 63V For dual Amplifier TR1 230Vac 2X22Vac 150VA for dual Amplifier 22nF 100V Polyester MKT C10-11 1uF 63V BR1 Diode cầu 15A C6-7 63V For single A c _ 4 F1 Fuse slow Amplifier w MKĐ âm thanh 50W