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.

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.

Core PFC using this ferrite core full turn 1x with copper wire 1.5mm, 

Core Diameter Outer = 47mm, Inner=24mm, Thickness=18mm

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.