750 watt rms 2-ohms-77v-audio-power-amplifier

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750 watt rms 2-ohms-77v-audio-power-amplifier

750 watt rms 2-ohms-77v-audio-power-amplifier

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  • 1. VCC (+) CNT2 +77V R04A 5.6k Q4 MJE350 1 2 R04B 47k 3 Q3 MJE350 76.2V C03 100uF80V 76.4V R09A 100 C05 82pF R01A 100 C01 390pF R02A 100k Q1 2N5551 −0.01V C02 100uF 50V 1 Q2 2N5551 −0.01V R03A 5.6k R03B 47k R06A 100 R07A 27k SIGNAL/SYSTEM GND (CHANNEL A ONLY) C04 1000uF 50V D01 1N4148 CNT3 27V ZENER CNT4 INTER−CHANNEL KITS GND D03 1N4750 −26.8V MODIFICATION R08 20k 0.5W MAIN SUPPLY (+) 9.1V ZENER TO OUTPUT PROTECTOR CNT11 1 DRV SUPPLY (+) 76.8V Q6 MJE350 68.6V R10 39k 0.5W CNT12 HDR GND CNT13 CNT6 1.05V C06 0.47uF 50V R06B 1.2k R11A 1.2k QFP1 MJ15003 (2SC3858) R12A 6.8k C07 50uF 100V D02 1N4148 Q7 MJE340 MAIN BUFFER (+) CNT7 D05 1N4739 R14A 4.7k QFP4 MJ15003 (2SC3858) QFP5 MJ15003 (2SC3858) QFP6 MJ15003 (2SC3858) QFP7 MJ15003 (2SC3858) 2 3 CNT14 R22 1.0 2W 0.55V NFB 0V NFB & MAIN OUT CNT8 CNT15 Q9 MJE15033 REP1 0.39 5W REN1 0.39 5W −0.55V MAIN BUFFER (−) CNT9 CNT16 REP2 0.39 5W REP3 0.39 5W REP4 0.39 5W REP5 0.39 5W REP6 0.39 5W REP7 0.39 5W NFB REN2 0.39 5W REN3 0.39 5W REN4 0.39 5W REN5 0.39 5W REN6 0.39 5W 5 L01 3uH 0V R16A 150 0V TO OUTPUT PTC. RELAY (+) REN7 0.39 5W CNT21 −0.55V TO OUTPUT PTC. RELAY (−) CNT17 CNT22 TO PSU P.GND −1.01V DRV SUPPLY (−) C10 50uF 100V C08 120pF MAIN SUPPLY (−) CNT18 CNT19 QFN1 MJ15004 (2SA1494) QFN2 MJ15004 (2SA1494) QFN3 MJ15004 (2SA1494) QFN4 MJ15004 (2SA1494) QFN5 MJ15004 (2SA1494) QFN6 MJ15004 (2SA1494) R18 8.2 2W R19 8.2 2W R20 8.2 2W R21 8.2 2W C11 0.12uF RG1 −68.5V 9.1V ZENER QFP3 MJ15003 (2SC3858) 4 0.55V −68.0V R13 39k 0.5W QFP2 MJ15003 (2SC3858) RG1 R11B 68k modifiable in 33k ~ 68k CNT20 +77V R15A 150 R05A 5.6k For each C07, C09, C10 may be applied serially as 2x 100uF/50V. CNT5 C09 50uF 100V Q8 MJE15032 −0.62V 3 D04 1N4739 R05B 47k R01B 1.2k 2 R09B 1.2k Q5 MJE350 0.7V RMS INPUT (FROM VC AMP OUT) CNT1 TO PSU V. MAIN OUTPUT (+) +77V BRIDGE INPUT (FROM BRIDGE SWITCH) C12 0.12uF C13 0.12uF C14 0.12uF QFN7 MJ15004 (2SA1494) −77V CNT10 −77V −77V TO PSU V. MAIN OUTPUT (−) VCC (−) CAUTION: THIS SCHEMATIC MAY NOT BE APPLIED WITH ANY SPECULATIVE MODIFICATION, TO AVOID UNDESIRE RESULTS. 750 Watt RMS Class AB Audio Power Amplifier MODEL i−6 RLVA FG 7502 REV. 1 (MAIN POWER AMP BLOCK SCHEMATIC) FG−PLATFORM (A RESEMBLE OF MATRIX 1.4) By Heru Himawan T − based MATRIX 1.4 & Heru’s personal research in 1990’~2014 For more information about MATRIX 1.4, please visit MATRIX 1.4 publication site at: http://matrix14freeamp.sourceforge.net/ FG−PLATFORM Project Page at: http://fg−audio−power−amp.sourceforge.net/ EKSEPSI TANGGUNG JAWAB PURNA JUAL PRODUK KIT: LICENSE AGREEMENTS (PERSETUJUAN LISENSI) THIS SCHEMATIC IS LICENSED UNDER THE THERMS OF GNU GENERAL PUBLIC LICENSE V. 3. YOU MUST INCLUDE THIS SCHEMATIC WITHIN THE PRODUCT THAT BASED ON IT OR BASED THE MODIFIED VERSION OF THIS SCHEMATIC, PRESERVE THIS LICENSE NOTICE, PRESERVE THE GNU GENERAL PUBLIC LICENSE AS THE DEFAULT LICENSE, PRESERVE THE DESIGNER NAME, PRESERVE THE INVENTOR NAME AND PLATFORM NAME OF THE TECHNOLOGY AS BASES THIS SCHEMATIC. THIS IS FREE SCHEMATIC AS PROVIDED IN THE HOPE THAT IT WILL BE USEFUL, BUT WITH ABSOLUTELY NO WARRANTY. THE COPYLEFT OF LICENSE IS AVAILABLE AT: http://www.gnu.org/licenses/gpl.html SKEMATIK INI DILISENSIKAN DI BAWAH ATURAN−ATURAN GNU GENERAL PUBLIC LICENSE V. 3. ANDA HARUS MENYERTAKAN SKEMATIK INI BERSAMA PRODUK BERBASIS SKEMATIK INI ATAU BERBASIS VERSI MODIFIKASI SKEMATIK INI, MENYERTAKAN CATATAN LISENSI INI, MENYATAKAN GNU GENERAL PUBLIC LICENSE SEBAGAI LISENSI ASLI, MENYERTAKAN NAMA PERANCANG, DAN MENYERTAKAN NAMA PENEMU SERTA NAMA PLATFORM TEKNOLOGI DASAR SKEMATIK INI. INI ADALAH SKEMATIK BEBAS, TERSEDIA DALAM HARAPAN DAPAT BERGUNA, NAMUN JELAS TANPA JAMINAN. CATATAN LISENSI TERSEDIA PADA SITUS: http://www.gnu.org/licenses/gpl.html SPECIFICATIONS MAX. OUTPUT PEAK POWER MAX. RMS OUTPUT RMS POWER MAX. BRIDGED RMS OUTPUT POWER RMS OUTPUT MAGNITUDE PEAK OUTPUT MAGNITUDE FREQ. RESPONSE MAX. OUTPUT GAIN THD INPUT DC POWER SUPPLY Notice: Default power rate specification of resistor is in 0.25 watts, unless marked. The transistor type & the diode type is case sensitive, and therefore apply each transistor with the type as described on the schematic. : TYP. 1500 WATT PEAK @ 2−OHMS LOUDSPEAKER : TYP. 750 WATT RMS @ 2−OHMS LOUDSPEAKER : TYP. 1500 WATT RMS @ 4−OHMS LOUDSPEAKER : TYP. 38.5V RMS : TYP. 54.4V PEAK : TYP. 20Hz ~ 20kHz : TYP. 31.7dB : See: THD table : TYP. 0.7V RMS : 75V ~ 82V DC (DUAL SUPPLY) PRODUSEN KIT PLATFORM−FG KOMERSIAL DI LUAR KERJASAMA DENGAN TIM PENGEMBANG PLATFORM−FG, WAJIB MENYEDIAKAN TANGGUNGJAWAB PURNA JUAL KEPADA KUSTOMERNYA SECARA RESPEKTIF & INDEPENDEN, YANG MANA TIDAK DAPAT DILIMPAHKAN KEPADA PIHAK LAIN ATAUPUN BAHKAN TIDAK DAPAT DILIMPAHKAN KEPADA PENGEMBANG PLATFORM−FG. EKSEPSI PERLISENSIAN: SKEMATIK DIAGRAM INI DIPERUNTUKAN UNTUK KOMUNITAS, MAKA SIAPAPUN DILARANG MENGHAPUS PERNYATAAN PERSETUJUAN LISENSI (LICENSE AGREEMENTS), DILARANG MENGHAPUS NAMA PERANCANG, LOGO, & ATRIBUT PLATFORM−FG, DILARANG MENGUBAH SEMBARANGAN TANPA DASAR FUNDAMENTAL PENGETAHUAN RANCANG BANGUN YANG MUMPUNI, DILARANG MENGUBAH LISENSINYA MENUJU LISENSI PRIVAT. SKEMATIK INI BUKAN MILIK PRIBADI, MAKA SIAPAPUN DILARANG MENGKLAIM KEPEMILIKAN SECARA SEPIHAK DENGAN MAKSUD APAPUN. INVENTOR & PENGEMBANG PLATFORM−FG BERHAK MELAKUKAN PEMBOIKOTAN SECARA TERBUKA BAGI PIHAK PELANGGAR LISENSI DAN PERJANJIAN PAKAI INI, DI HADAPAN PUBLIK DAN AKAN MENCANTUMKAN NAMA−NAMA PIHAK PELANGGAR LISENSI DI HALAMAN SITUS: http://fg−audio−power−amp.sourceforge.net/blacklisted−users TOTAL HARMONIC DISTORTION (THD) Test conditions: input = 2Vpp (0.7V RMS), MAIN SUPPLY = 77V Output Load Impedance F = 20Hz F = 1kHz F = 16kHz F = 20kHz TITLE 8 Ohms 0.090% 0.072% 0.1% 0.18% FILE: 4 Ohms 0.098% 0.07% 0.1% 0.44% DATE (12/01/2014) 2 Ohms 0.096% 0.075% 0.086% 0.7% PAGE 1 750 Watt RMS Class AB Audio Power Amplifier for 2−Ohms Loudspeaker REVISION: 1 OF 1 DRAWN BY: HERU HIMAWAN TEJO LAKSONO