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

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