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D3KFB Ver.1 Double Feedback High Performance Pro Class D Amplifier Circuit Diagram
- 1. 100µ C2 C4 1µF D4 31GF6 C5 100µF L1 30µH Vdd Hin Lin SD Vss Com Lo Vcc Vs Ho Vb X1 IR2110 C8 220p C16 220p 10/1W R6 R7 10/1W R10 15K/2W D5 ZD12V R15 4R7/1W D6 MUR460 D8 MUR460 C10 220n C1 220µF R21 10K/3W D9 1N4148 Q1 2N5401 C7 100µ R23 100 R25 100 C12 100n 100µ C14 D16 ZD12V R26 1K U4A C28 100n U4B C19 100n 100µ C20 D1 ZD12V R24 68K R29 10K/3W C9 1n R30 1K C11 1n R22 1K R39 47 R40 47 100µ C25 C26 220n GND TRIG OUT RST CV THRS DIS Vcc U6 NE555 D13 QTLP690C R49 3K3 100µ C33 R50 47K C34 10n R45 2K2 R16 4K7 D7 QTLP690C R17 3K3 1µF C32 C40 100n D20 1N4148 D21 1N4148 C42 100n R28 4K7 U5A U5B C52 220n 10 R61 R63 1K C53 1n R64 68K C15 1n 1K5 R65 R33 10K R34 10K C3 22µ/NP R35 100K C18 22p C21 22µ/NP R36 39K R37 39K R38 10K C22 220µ/35V C23 100n POT1 R=10k T=1 C30 22µ/NP C31 22µ/NP R43 100K U1A TL072 U1B TL072 R31 100 R32 100 C54 100p C55 100p 1µF C57 U2 TL071 R68 68K R69 68K C17 47p C58 47p R8 100K R67 100K D31 1N4148 D32 1N4148 R70 33K R71 47K R72 680 D33 1N4148 D34 1N4148 C41 100µ C49 100µ D35 QTLP690C D36 QTLP690C D37 QTLP690C R73 10K Q15 2N5551C R74 33K D38 ZD12V R75 15K R76 15K D40 1N4007 Q16 2N5551C 220µ/16V C60 Q17 2N5551C R78 47K D41 1N4007 R79 6K8 4K7 R80 QTLP690C D42 R81 100K R82 4K7 R83 1K Q18 2N5551C R84 1K D43 ZD15V RLY1 R20 33K D19 MUR460 R47 3K3 D25 1N4148 100µ C6 C35 220n 100µ C36 C37 220n R4 470 1K5 R60 2.2µ C59 10µ C13 R19 10K/3W R85 10K/3W 100µ C38 C39 220n M5 IRFP4332 100µ C61 C62 220n 1µF C63 M3 IRFP4332 M6 IRFP4332 Q8 BD140C BD139C Q19 R86 22 Q20 BD140C BD139C Q21 R87 22 Q22 BD140C BD139C Q23 R88 22 M4 IRFP4332 Q24 BD140C BD139C Q25 R89 22 R98 4K7 R99 4K7 R100 4K7 R102 4K7 R1 1K R9 1K R12 0.1 R13 0.1 R14 0.1 R18 0.1 R27 47K R41 3K3 R42 680 R48 3K3 R51 680 D10 1N4148 R52 47K D11 1N4148 D12 ZD15V D14 ZD15V R53 15K/1W Q2 2N5401 R54 22K D15 1N4007 R56 100K R57 22K D17 1N4007 R62 100K Q3 2N5551 100n C56 C69 100n C70 100n C71 100n R101 47K R103 47K R104 47K R105 47K C72 1n C73 1n R106 22K R107 22K C74 10n R109 15K/1W C75 10n VR1 R=100k T=1.0 D22 . C76 10µ/25V D23 1N4148 R111 1K R112 33K R113 33K R114 22K C77 22pF C78 22pF C79 1n 100µ C27 C29 1µF D2 31GF6 C43 100µF L2 30µH Vdd Hin Lin SD Vss Com Lo Vcc Vs Ho Vb X2 IR2110 C44 220p C45 220p 10/1W R2 R3 10/1W R5 15K/2W D3 ZD12V R11 4R7/1W D24 MUR460 D26 MUR460 C46 220n R55 47 R58 47 100µ C47 C48 220n R59 4K7 D27 QTLP690C 1µF C50 C51 100n D28 1N4148 D29 1N4148 1K5 R66 1K5 R77 100µ C64 C65 220n M1 IRFP4332 100µ C66 C67 220n 1µF C68 M2 IRFP4332 M7 IRFP4332 Q6 BD140C BD139C Q7 R90 22 Q10 BD140C BD139C Q11 R91 22 Q12 BD140C BD139C Q13 R92 22 M8 IRFP4332 Q26 BD140C BD139C Q27 R93 22 R94 4K7 R95 4K7 R96 4K7 R97 4K7 U3A TL072 U3B TL072 C80 100n R46 4K7 D18 ZD12V R108 33K D30 ZD56V D39 ZD27V R115 33K D44 QTLP690C R116 6K8 C81 47pF C82 47pF C83 2n2 C84 2n2 R44 220 D45 ZD3V Q4 2N5401 Q5 2N5551 Q28 2N5401 Q9 2N5401 Q14 2N5551 SHUT-DOWN +++120VDC_SUPPLY +2_XLR -3_XLR G1_XLR TO_SPEAKER_POS TO_SPEAKER_NEG ---120VDC_SUPPLY +++12V_BIAS ---12V_BIAS GND_120VDC_SUPPLY +++12V_TO_NEG +++12V_TO_NEG +++12V_TO_NEG +++12V_TO_NEG OCP_TRIGGER OL-POS OL-NEG LI_POS LI_NEG +++12V_TO_NEG OUT_A OUT_A OUT_A OUT_A OUT_B OUT_B OUT_B +++120VDC_PROTPOS +++120VDC_PROTPOS +++120VDC_PROTNEG +++120VDC_PROTPOS +++120VDC_PROTPOS +++120VDC_PROTNEG +++120VDC_PROTNEG +++120VDC_PROTNEG ---120VDC_SUPPLY +++120VDC_SUPPLY +++120VDC_SUPPLY ---120VDC_SUPPLY +++120VDC_PROTPOS HCF4049 BOOTSTRAP ON OCP TRIPPED 400V 1kV 1kV /400V 160V 160V 160V 160V HCF4049 5W 5W VOLUME XLR-1 CONNECT PIN 3 TO PIN 1 (J1) FOR UNBALANCED INPUT XLR INPUT Vpp = 1 Volt J1 400V 400V CLIP POWER ON SIGNAL 2W DCP ON FUSE 30A FUSE 30A DCP CUT-OFF BALANCED INPUT COMPARATOR SECTION LEVEL SHIFTER POWER STAGE LPF STAGE ON/SIGNAL/CLIP DC_OUT SENSOR 160V 160V 160V 160V 5W /400V 160V 160V 160V 160V DRIVER STAGE LIMITER CLIP CUT OVERLOAD OVERCURRENT OVERLOAD LIMIT SET > MORE < LESS LDR BOOTSTRAP ON 400V 1kV 1kV /400V 160V 160V 160V 160V 5W POWER STAGE LPF STAGE 5W /400V 160V 160V 160V 160V DRIVER STAGE UVLO SET 70% SUPPLY 2xMS157060 2xMS157060 LIMITER ON RATIO C70, C71 RELEASE Set 50ms LCR-0202 BLUE GREEN ORANGE RED GREEN GREEN ORANGE RED D3KFB- FULLBRIDGE CLASS D DOUBLE FEEDBACK VER.1 Kartino Surodipo - Copyright APR 2022 ATTENTION: NOT FOR SALE UNLESS PERMITTED! Contact: kartino.id@gmail.com #Indonesian - Class D Next Generation Facebook Group LIMITER OVERLOAD IXTH76N25 IXTH76N25 IXTH76N25 IXTH76N25 IXTH76N25 IXTH76N25 IXTH76N25 IXTH76N25 IRFP4242 IRFP4242 IRFP4242 IRFP4242 IRFP4242 IRFP4242 IRFP4242 IRFP4242 #D3KFB Ver.1 Double Feedback High Performance Pro Class D Amplifier 3000W 4 ohm output Supply +/- 120VDC Features: - DCO Protection - Overcurrent/Short Circuit Current Protection - Overload Protection limiter adjustable - Limiter clip cut - Undervoltage Lockout - Anti stall - Front Panel Signalling