DIY 2kVA SMPS 90V 15A HB PFC with IR2110 Mosfet Drive

DIY 2kVA SMPS 90V 15A HB PFC with IR2110 Mosfet Drive


Hello, this time I will build Switching Mode Power Supply (SMPS) with Half Bridge (HB) topology, with Power Factor Correction (PFC Boost Converter) controller with chip NCP1653 SMD SO-8. PWM Control Circuit using SG3525 and MOSFET driver using IC IR2110. This SMPS can produce output power up to 2200 Watt (peak) Load test at 8 Ohm. Output SMPS 90VDC Symmetrical.

Below the schematic SMPS HB PFC IR2110 2kVA 

Download Schematic and Partlist at the end of this Post.

PWM Supply using 16V supply from transformer PWM Sanken B2 Input 500V output 12-19V and PWM controller using UC3845 MOSFET can be using IRFPG40 N-Channel Power Mosfet.


EMI Filter for this SMPS can be using 3.5mH 


NTC also can be using Resistor 5W  47-100Ohm


Core PFC using this ferrite core full turn 1x with copper wire 1.5mm, 
Core Diameter Outer = 47mm, Inner=24mm, Thickness=18mm


Trimpot adjustment:
1. For PWM frequency adjustment 30-130kHz
2. Duty cycle adjustment 30-40% Low Side gate adjustment
3. Overcurrent adjustment sensitivity
4. Aux DC out adjustment


PWM Gate signal at 82kHz and Duty Cycle 38.1%


Transformer Ferrite EE55/28/21

Np Working Frequency
30-40kHz = 18 turns
40-50kHz = 16 turns
50-60kHz = 15 turns
60-80kHz = 14 turns
80-100kHz = 12 turns
100-130kHz =  10 turns

Np 14 turns = Ns 6 + 6 output 90V copper wire 1:1.


If you want to make this SMPS I will share the Gerber file free version, Layout SMPS like this. OCP using a transistor.



Video Assembling SMPS HB PFC IR2110


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