It would be used around the radio area to fill the gap, home and
mobile/portable, where I needed a voltage I don't have handy.
Increasing the size and weight somewhat is not a significant matter,
not adding more RF-trash to the radio environment is.
I'd value any specific recommendations for the common mode chokes,
etc. I am guessing .001 ceramics for the bypass caps?
Thanks!
David
The answer to your question is partly controlled by your intended
application. What do you wish to do with it, if you bought one?
A few things are obvious: it is a "bare card", so you would need a
conductive housing and INPUT/OUTPUT filtering for starters. Note
that the switching frequency is given as 150 kHz and output ripple as
30 mV, max. Keep in mind that they are saying 30 mV of ripple @
either 150 or 300 kHz (depends upon whether or not they use full wave
rectification). They also don't say if the 30 mV is Pk-to-Pk or RMS.
The ripple is also most likely to be as measured differentially
(between the pair of output leads), not between an earth ground and
either lead (common mode).
You could make this work by using a suitable size minibox chassis
(with vent holes) and common mode chokes (placed within the chassis)
and by-pass caps on the input and output leads. All of that will
increase size, weight, and cost, so again - what's the intended app?
Maybe you can live with a "screamer".
73, Dale Svetanoff, WA9ENA Sr EMC Engineer E-N-A Systems, LLC
Specializing in shielding applications, system grounding, and
lightning protection
[Original Message] From: qrv@kd4e.com <qrv@kd4e.com> To: RFI List
<rfi@contesting.com> Date: 1/5/2013 3:52:15 Subject: Re: [RFI]
1.23V-30V DC DC Buck Converter Step Down Module
Corrected post & link ...
What are the chances that this 4V-35V IN to 1.23v - 30v OUT 3A
DC-DC buck converter is a RFI nightmare?
http://www.ebay.com/itm/110950894139
--
Thanks! & 73, KD4E.com
David Colburn nevils-station.com
I don't google I SEARCH! duckduckgo.com
Network: groups.yahoo.com/group/qrv
Restored to design-spec at Heaven's gate 1Cor15:22
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