Sunday, April 29, 2018

SMPS Power Amplifier using 2 Mosfet Transistor

This is power supply circuit using the power amplifier, like before schematic circuit SMPS Gacun here: 10A 70V SMPS for Power Amplifier there are using 1 Mosfet N Channel. This power supply circuit is suitable for power amplifier circuit with big power, can be used for a power amplifier with 1000Watt or more power. The maximum voltage that can be set up is 75V with maximum ampere can reach 25Ampere. By using 2 mosfet Gacun SMPS can add their output power and also stronger for all types of amplifiers. Below for the circuit scheme:
SMPS Power Amplifier using 2 Mosfet Transistor
Component List:
R4= 22R
R5= 1K5
R6= 39K
R7= 3K9
R8= 1K
R9= 820R
R10= 220K
R11= 0,1R - 0,22R 5W
R12= 5K6
R13= 220K 2W
C1= 100N 275V
C2= 220uF 400V
C3, C4, C8= 10N
C5, C6= 1uF 50V
C7= 2N2
C9= 22N
C10= 10uF 50V
C11= 47uF 50V
C12= 1N 400V
C13, C14, C15, C16= 1000uF 100V
D1,D4= Zener 9V1
D2, D3, D5, D6= 1N4148
D7= Zener 12V 500mW
D8, D9= MUR8060
BR1= Diode Bridge KBU4M
TR1= EMI Filter from TV PSU Circuit
TR2= Gacun Trafo MK201609
TR3= Primary Winding: 45Turns 0,6mm , Secondary Winding: 14Turns CT 14Turns 0,8mm. Core transformer using former tv power supply.
IC1= UC3843
Q1= IRFP460, K3911
Q2= IRFP460, K3911

For PCB Layout you can see below, or you can download it in the form of a file (PDF) at the end of the post:
PCB Layout SMPS Gacun

Finished PCB SMPS Gacun 25A 2 Mosfet N-CHANNEL:

The transformer that you can use for this SMPS Circuit, see video below:


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.


Sir ,I'm from India. MUR8060 is not available here. Which diode I can use instead of MUR8060?

sir , is it ETD-34 transformer ???

Please give number of turns and diameter of TR3 Pin 3,4 winding and 5,6 winding.

Specification of Gacun Trafo MK201609

hi sir
i cant find the gacun trafo can i wind it my self?
what etd core should be used for max performans?

Brother pls upload this amps 75/0/75 25A video pls

Bro layout atas kok tlisanya gak di blik.

Ajarin lilit travonya mas
Dobel NP apa gimana, pakai kawat uk berapa,dan kalau pakai travo bekas psu pc yang belalai brapa lilit

hi brother, do you gerb file?

hi brother, do you have gerb file?

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hi i want to wrap TR2 = how Gacun Trafo MK201609 parameters