[Amps] Has this SMPS got too much ripple for a SS bias supply?

[Randall, Randy]

Did you take that measurement loaded @ 3A or no load?

Randy AB9GO

Please note:  Upcoming Vacation: December 21 - January 5, 2014



Randy E. Randall AB9GO
Network Architect
UC Health
Randy.Randall at UCHealth.com
Phone 513-585-7146
Fax 513-585-7159

-----Original Message-----
From: Amps [mailto:amps-bounces at contesting.com] On Behalf Of Chris Wilson
Sent: Wednesday, October 02, 2013 10:11 AM
To: amps at contesting.com
Subject: [Amps] Has this SMPS got too much ripple for a SS bias supply?



  02/10/2013 15:09

I have a Skanti commercial solid state 250W RF amp, 1 to 30 MHz. It needs 50 volts and 5 volts supplied to it. The 5 volts is for the bias circuits. I am told they draw about 3 amps maximum. I have a good quality regulated 4 amp SMPS at 5 volts. Here is a `scope screen shot of the ripple, measured without ground lead tails on the probe, direct across the output to minimize pick up. The dots are the cursors, it's an elderly Tek 7854 analogue `scope. Is this OK to use? Or do I build a linear regulated supply? Thanks.

The `scope screen shot is at http://www.gatesgarth.com/ripple2.jpg  as I don't know how to upload a shot here.

--
       Best Regards,
                   Chris Wilson.
mailto: chris at chriswilson.tv

_______________________________________________
Amps mailing list
Amps at contesting.com
http://lists.contesting.com/mailman/listinfo/amps

________________________________

Confidentiality Notice: This e-mail message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message.