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Subject: Re: 1.6kw offline smps

Date: 01/16/02 at 6:48 AM
Posted by: John Dunn - Consultant
E-mail: ambertec@ieee.org
Message Posted:

In Reply to: Re: 1.6kw offline smps posted by Russ Kincaid on 01/15/02 at 10:50 AM:

Hi, Russ and Anthony.

The term "smps" means switch-mode power supply which the question assumes that the supply will be. The other reference to full-wave rectification means that it is assumed in advance that the 220 VAC input line power will be full wave rectified using a bridge rectifier.

This supply's design is going to be quite an undertaking and to be sure, I have no personal experience from which to offer specific design advice. However, from a topological standpoint, assuming that you don't need transformer isolation, you would produce a high voltage DC from that input rectifier and then use a buck-converter to regulate that DC down to your 150V output level.

Try presenting this requirement to the applications assistance people at International Rectifier. Their hexfet product line may be of value in all of this.

Good luck.

John Dunn

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