Friday, March 02, 2018

4500W 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 3000W of power at 4 Ohm impedance - and also more power up to 4500W at 2 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:
Power Amplifier Class D D4K5 4500W Circuit Diagram
View larger schematic image here: Power Amplifier Class-D D4K5

Component List
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
R14, R15=4R7
R22, R23, R24, R25, R31, R33=47R
R28, R29, R30=0,1R/2W
R36, R38=22R/2W
RV1=10K Trimpot

C3, C4=1N
C7, C9, C11, C12, C13, C15, C16, C18, C19=100N MKP
C10, C14, C17=100uF/16V
C21, C22, C23=220N/475V
C24, C25, C26=470uF/180V
C27, C31, C33=100N/275V
C28, C29, C30=470uF/180V

D1, D2, D5, D10, D11= 1N4148
D3, D4= ZD5V6
D6, D18, D19= MUR460
D8= ZD5V6
D12,D13,D14,D15,D16,D17= 1N5819

Q1= 2N5401
Q4, Q6= BD139
Q5, Q7= BD140
Q8, Q9, Q10, Q11, Q12, Q13= IRFP260

U1= TL071
Q2= CD4049
Q3= IR2110
U2= NE555
U3= LM311
Class d power amplifier circuit
ir2110 irfp4227 mur460 mur860 cd4049 tl071

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
PCB Layout Class D 4500W power amplifier
View larger PCB Layout Design: PCB Class-D D4K5

How to make Class D Power Amplifier [VIDEO]

High Power Amplifier Test Class D 

Electronic Circuit is a good site for hobbyist also who would like to try DIY because it shared good circuits. If you have a personalized circuit requirement you may feel free to request it through the comment box or contact me.


Hi ia am pranatosh from india. This circuit tested? 100% real?

Heĺlo Pranatosh.
Yes it is real and this tested from indonesian DIYer.1

What do you think? the PCB size is true.. please see again.

Please will u tell about the LF coil u used

Hello sir lf coil core is iron core?

Please tell me details of lf coil. I will try to make this in this month.

This comment has been removed by the author.

Hello you can using iron core about 10uH

I am collect ir2110 from dna website. I will try to make this......... Can you help me?

Semitic and pcb design not same. So can u tel me why

Ir2110 ic's some pin are open in semitic. But pcb desin all pin are connected.

This circuit respond full range or sub bass thank sir.

Hello sir please tell me what is the correct? Pcb or semitic

this is can for sub or mid high you can see video result