2011@ by „donpetru”

http://www.forum.tehnium-azi.ro

http://www.tehnium-azi.ro

12/03/2011

COLECTIA

TEHNIUM AZI

D o i t y o u r s e l f

Not for commercial use! For DIY purposes only!

KIT102.4 = GX400

Amplificator Audio Hi-Fi 400W

Un amplificator audio performant cu protectii si softstart

2 KIT102.4 = GX400 – 400W Hi-Fi Audio Amplifier | www.forum.tehnium-azi.ro

2. SCHEMA ELECTRONICĂ GX400 – un amplificator audio Hi-Fi de 400W - compact si performant –

Not for commercial use! For DIY purposes only!

Q1

2SA970

Q2

2SA970

Q3

MJE350

Q5

2SC2240 Q6

MJE340

Q8

MJE350

R1270Ω

0.25W

R14

150Ω

0.25W

D11N4148

R9

33kΩ

min.2W

R10

33kΩ

min.2W

D21N4148

R282Ω

0.5W

R421.2kΩ

0.25W

R552.2kΩ

0.25W

R562.2kΩ

0.5W

R571.2kΩ

0.25W

R4510kΩ

2W

R433.3kΩ

0.5WC15100µF

10V

R28560Ω

0.25W

R4118kΩ

0.25W

C134.7µF

63V

R27

18kΩ

0.5W

C24

39pF

500V

R46

1K

50%

R291kΩ

0.25WQ9

MJE340

*

C18_10.47µF

63V

C4100µF

80V

C27100µF

80V

C30.1µF

100V

C260.1µF

100V

R150.47Ω

2W

R300.47Ω

2W

R3810Ω

3W

C17100nF

250V

Q7

BD135

Q4

BD135

C11

39pF

500V

C16100nF

50V

C10

270pF

500V

HD1

INPUT

HD2

+70Vcc

HD3

OUTPUTmin. 4 Ohm

HD4

GND

HD5

-70Vcc

F1

6A

F2

6A

D41N4148

D61N4148

R310.47Ω

2W

R160.47Ω

2W

~680mVdc

~1.25Vdc

~2,5mAdc

~10mAdc

~80...120mAdc

~80...120mAdc

~5.5mVdc

KIT 102.4 = GX400

de "donpetru"www.forum.tehnium-azi.ro

COLECTIA

TEHNIUM AZI

12.03.2011

"Amplificator Audio Hi-Fi 400W - 4 Ohm"

- versiunea cu 4 perechi de finali MOS-FET

Q10

IRFP240

C6

39pF

500V

Q11

IRFP9240

C19

39pF

500V

D31N4743A

D81N4743A

R12

220Ω

0.25W

R170.47Ω

2W

R180.47Ω

2W

Q12

IRFP240

C7

39pF

500V

R320.47Ω

2W

R330.47Ω

2W

R11

220Ω

0.25W

Q13

IRFP9240

C20

39pF

500VR51

220Ω

0.25W

R48

220Ω

0.25W

R4747Ω

0.25W

R340.47Ω

2W

R350.47Ω

2W

Q15

IRFP9240

C21

39pF

500V

R360.47Ω

2W

R370.47Ω

2W

Q17

IRFP9240

C22

39pF

500V

R190.47Ω

2W

R200.47Ω

2W

Q14

IRFP240

C8

39pF

500V

R210.47Ω

2W

R220.47Ω

2W

Q16

IRFP240

C9

39pF

500V

R7

220Ω

0.25W

R3

220Ω

0.25W

R52

220Ω

0.25W

R58

220Ω

0.25W

K1Tyco Electronics

SPDT PCB relay,

16A 110Vdc

Cod producator

RT314110

23 4

1

D51N4007

R44820Ω

3W

Q22

MJE350

~5.5mVdc

Q21

MJE350

R25470kΩ

0.25W

R40470kΩ

0.25W

R522kΩ

0.25W

R847kΩ

0.25W

Q20

2SA970

Q18

2SC2240Q19

2SC2240

R2318kΩ

2W

R6

82kΩ

0.5W

C147µF

63V

C547µF

63V

C2680µF

16V

HD6

OL_TEMP

R54

1kΩ

3W

D91N4759A

C25

270pF

500V

D101N4007

LED3

PEAK

Q23

2SA970

Q242SA970

LED2

PWR/SIGNAL

R49

39kΩ

1W

R2410kΩ

1W

R393.9kΩ

0.25W

D71N4935

R50

5.6kΩ

0.25W

R53

10kΩ

3W

C12

47µF

63V

C23

10µF

100V

LED1

PROTECT

R427kΩ

1W

R26

1.8kΩ

0.25W

C14270pF

500V

~1.5Vef pt. Pnom.

C18_20.47µF

63V

R13100kΩ

0.25W

HD7

MUTE

R5947kΩ

0.25W

12 martie 2011 KIT102.4 = GX400 - Caracteristici Tehnice, Sursa de Alimentare

3 KIT102.4 = GX400 – 400W Hi-Fi Audio Amplifier | www.forum.tehnium-azi.ro

Caracteristici tehnice (curentul de mers in gol pentru tot amplificatorul se va ajusta in domeniul 80...120mA):

Sursa de alimentare:

Obs!

1. Valorile componentelor din schema sunt recomandate pentru alimentarea a doua montaje KIT102.4.

2. Condensatoarele de filtraj vor avea tensiunea nominala de 80V sau 100V.

3. Optional se poate utiliza un circuit pe alimentarea transformatorului T1.

Zin Uin Fin_sin Ubias +/-Ualim Impedanta incinta

Zload = 8 Ohm

Impedanta incinta

Zload= 4 Ohm SR Randament

[kOhm] [Vef] [kHz] [V] [Vdc] P [W] THD[%] P [W] THD[%] [V/us] [%]

KIT102.4 18 1,400 1 ~6,750 70 206,65 0,010 413,42 0,012 ~55,00 53,50

Punte_Redresoare

25A 400V

C110000µF

C210000µF

C310000µF

C410000µF

T1

aprox.1000VA230VAC_50Hz

F1

8A

SW1

Comutator 250V 10A

+Vcc

-Vcc

45...52VacGND

45...52Vac