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Legend 500W MosFet AMP

4 months ago 220
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Description

Documents

Sheet_1

PCB_2020-09-15_21-26-22

BOM

ID Name Designator Footprint Quantity
1 10uF C10 CAP-TH_BD8.0-P3.50-D1.0-FD 1
2 470nF C18,C17 CAP-3.5*9*7 2
3 1N4007 D1,D2,D3 DO-41_BD2.4-L4.7-P8.70-D0.9-RD 3
4 10 R12 RES-TH_BD2.2-L6.5-P10.50-D0.6 1
5 220pF C3 CAP-TH_L4.8-W3.2-P5.08-D0.5 1
6 5.6pF C6 CAP-TH_L4.8-W3.2-P5.08-D0.5 1
7 22 R72,R71 RES-TH_BD4.5-L11.5-P15.50-D0.7 2
8 22 R16 RES-TH_BD2.2-L6.5-P10.50-D0.6 1
9 MJE350 Q8 SOT-32_L7.6-W2.7-P2.15-L 1
10 180 R22,R20 RES-TH_BD2.2-L6.5-P10.50-D0.6 2
11 22 R2 RES-TH_BD2.2-L6.5-P10.50-D0.6 1
12 300 R10 RES-TH_BD2.2-L6.5-P10.50-D0.6 1
13 8.2K R13 RES-TH_BD2.2-L6.5-P10.50-D0.6 1
14 2.2K R17 RES-TH_BD2.2-L6.5-P10.50-D0.6 1
15 Fuse transparent seat F2,F1 5MM*20MM 2
16 47pF C7 CAP-TH_L4.8-W3.2-P5.08-D0.5 1
17 1K R9,R6 RES-TH_BD2.2-L6.5-P10.50-D0.6 2
18 0.1 R42,R46,R28,R44,R25,R30,R38,R32,R40,R36,R34,R26 RES-TH_BD9.5-L22.0-P28.00-D1.0 12
19 39K R1,R11,R8 RES-TH_BD2.2-L6.5-P10.50-D0.6 3
20 MPSA92 Q1,Q2 TO-92-3_L5.1-W4.1-P1.27-L 2
21 4uH L1 IND-TH_BD15.4-L22.2-P25.7-D1.5 1
22 1000uF C13,C14 CAP-TH_BD16.0-P7.50-D1.2-FD 2
23 IRF510PBF Q9 TO-220-3_L10.0-W4.5-P2.54-T 1
24 100uF C9 CAP-TH_BD8.0-P3.50-D1.0-FD 1
25 56 R5,R4 RES-TH_BD2.2-L6.5-P10.50-D0.6 2
26 1uF C2,C1 CAP-TH_L5.1-W3.8-P5.08-D1.2 2
27 2N5551 Q4,Q3 TO-92-3_L4.9-W3.7-P1.27-L 2
28 100nF C24 CAP-TH_L7.2-W2.5-P5.00-D0.6 1
29 10K PR2 RES-ADJ_3296W 1
30 200 PR1 RES-ADJ_3296W 1
31 10 R70 RES-TH_BD9.5-L22.0-P28.00-D1.0 1
32 100 R7 RES-TH_BD2.2-L6.5-P10.50-D0.6 1
33 4.7 R18,R19 RES-TH_BD2.2-L6.5-P10.50-D0.6 2
34 560 R3 RES-TH_BD2.2-L6.5-P10.50-D0.6 1
35 2N5401 Q5,Q6 TO-92-3_L5.1-W4.1-P1.27-L 2
36 MJE15035G Q11 PG-TO220-3_L10.0-W4.5-P2.54-L 1
37 22uF C8 CAP-TH_BD8.0-P3.50-D1.0-FD 1
38 330 R45,R41,R31,R43,R27,R33,R23,R39,R35,R24,R29,R37 RES-TH_BD2.2-L6.5-P10.50-D0.6 12
39 GND IN HDR-2X1/2.54 1
40 MJE15034G Q10 TO-220-3_L10.0-W4.5-P2.54-L 1
41 220 R21 RES-TH_BD2.2-L6.5-P10.50-D0.6 1
42 BZX2C12V D4,D5 DO-41_BD2.4-L4.7-P8.70-D0.9-RD 2
43 100nF C5,C11,C12 CAP-TH_L7.2-W2.5-P5.00-D0.6 3
44 10K R14,R15 RES-TH_BD2.2-L6.5-P10.50-D0.6 2
45 IRFP260NPBF Q16,Q12,Q21,Q19,Q22,Q20,Q17,Q14,Q15,Q13,Q23,Q18 TO-247AC-3_L15.8-W5.0-P5.46-L 12
46 470uF C4 CAP-TH_BD8.0-P3.50-D1.0-FD 1
47 100uF C16,C15 CAP-TH_BD10.0-P5.00-D1.0-FD 2
48 MJE340 Q7 SOT-32_L7.6-W2.7-P2.15-L 1
49 +95V U1 1287-2P_L7.9-W8.1-P5.08 1
50 -95V U2 1287-2P_L7.9-W8.1-P5.08 1
51 OUT U3 1287-2P_L7.9-W8.1-P5.08 1
52 GND U5,U4 1287-2P_L7.9-W8.1-P5.08 2

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Comments (6)

cucos mircea Reply

IMG_20201003_205540.jpg

cucos mircea Reply
cucos mircea Reply

IMG_20201008_201100.jpg

cucos mircea Reply

IMG_20201028_220920.jpg

Quintin Sleeking Reply

Hi Mircea


I had the boards made by a PCB manufacturer and built the amp. Set the idle current to 25ma per mosfet pair. Amp does not heat up. Played it the amp and the sound was distorted, and played for a few minutes and blew all the output fets. I however changed the Zener diodes to a different 12v zener as I cannot get the BZX2c12 zener. Would this cause the issue? Did you mach the mosfets? Please could you provide some guidance as to how you got the amp to work without any issues?

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