High Power Class-D Amplifier D4K5

High Power Class-D Amplifier D4K5


This High Power Amplifier circuit is a class D power amplifier, which has a high enough power to generate 1000W of power at 8 Ohm impedance - and also more power up to 2000W at 4 Ohm impedance. This Power Amplifier can generate great power if given enough power supply. For example, you can use 30A transformer with 100V symmetric voltage.  Here is the circuit scheme of High Power Class-D Amplifier D4K5:

View larger schematic image here: Power Amplifier Class-D D4K5

Component List

Resistor

R1, R3, R4, R9, R13, R18, R19, R20= 1K

R2, R16, R39= 100K

R5, R6= 10R

R7, R8=6K8/2W

R10, R21, R26, R27=4K7

R11, R17=6K8

R12=100R

R14, R15=4R7

R22, R23, R24, R25, R31, R33=47R

R28, R29, R30=0,1R/2W

R36, R38=22R/2W

R40=1K5/5W

R41=10R/2W

RV1=10K Trimpot

Capacitor

C1=10uF/16V

C2=10N

C3, C4=1N

C5=470uF/16V

C6=220uF/16V

C7, C9, C11, C12, C13, C15, C16, C18, C19=100N MKP

C8=470uF/16V

C10, C14, C17=100uF/16V

C20=10uF/50V

C21, C22, C23=220N/475V

C24, C25, C26=470uF/180V

C27, C31, C33=100N/275V

C28, C29, C30=470uF/180V

C32=470N/250V

Diode

D1, D2, D5, D10, D11= 1N4148

D3, D4= ZD5V6

D6, D18, D19= MUR460

D7= LED (RED) OCP

D8= ZD5V6

D9= LED (BLUE)

D12,D13,D14,D15,D16,D17= 1N5819

Transistor

Q1= 2N5401

Q4, Q6= BD139

Q5, Q7= BD140

Q8, Q9, Q10, Q11, Q12, Q13= IRFP260

IC

U1= TL071

Q2= CD4049

Q3= IR2110

U2= NE555

U3= LM311


The Power Amplifier is using view components and this power amplifier include OCP, DCP. And using 6x N-Channel Power Mosfet. You can use IRFP260, IRFP4227, IRFP4242 and others. If you want to make this power amplifier, see the following PCB Layout Design

View larger PCB Layout Design: PCB Class-D D4K5
DOWNLOAD PCB .PDF: PCB Layout Design Class D D4K5

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