[time-nuts] Power supply for Thunderbolt

Ken Winterling wa2lbi at frontiernet.net
Mon Apr 21 10:35:43 EDT 2008


David,

The only load on my Meanwell T-30B is the Thunderbolt and there is no problem.

Ken, WA2LBI

On Mon, Apr 21, 2008 at 10:29 AM, David C. Partridge
<david.partridge at dsl.pipex.com> wrote:
> Based on what's been said so far, I've ordered a Meanwell T-30B from Aibin
>  Guo.
>
>  Does this supply need dummy loads to ensure regulation, or does it manage OK
>  with just the load the Thunderbolt places on it?
>
>  The TB manual specifies:
>
>  +12v +/-10% max current 750 mA
>  +5v +/-5% max current 400 mA
>  -12v +/-10% max current 10 mA
>  Ripple
>  +5v 50 mV peak-to-peak, 15 mVrms
>  +/-12v 75 mV peak-to-peak, 20 mVrms
>
>  Looking at the T-30B datasheet, it suggests ripple/noise of around 20-25mV
>  p-p on all lines for an input between 210 and 250V.
>
>  This does seem to meet those specifications - that's pretty good for an
>  SMPS.   I'm used to them being pretty noisy brutes.
>
>  Many thanks to all
>  Dave
>
>
> -----Original Message-----
>  From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
>  Behalf Of iovane at inwind.it
>  Sent: 21 April 2008 14:46
>  To: time-nuts
>  Subject: Re: [time-nuts] Power supply for Thunderbolt
>
>  .... I also purchased from Aibin Guo a Mean Well. Model: T-30B power supply
>  ...



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