MC33374 high power voltage switching regulator

Posted on Feb 7, 2014

This switching power supply circuit diagram is based on the MC33374 high power voltage switching regulator IC manufactured by Motorola Semiconductor. This MC33374 switching power supply circuit will provide a maximum output power around 90 W and require few external components. The MC33374 switching regulator IC is designed to operate directly f

MC33374 high power voltage switching regulator
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rom a rectified AC line source, and in flyback converter applications are capable of providing an output power in excess of 150 W with a fixed AC input of 100 V, 115 V, or 230 V, and in excess of 90 W with a variable AC input that ranges from 85 V to 265 V. The hard part of these switching power supply circuit is to design the T1 transformer, but you have the design data for that bellow, or you can buy a transformer from Coilcraft.

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