Thank you for your warning. Have not bought Traco but was considered after Poul-Henning recommendation. Will stay with Mean Well have plenty good experience, a couple % more efficiency was tempting no more Bert Kehren
In a message dated 2/8/2020 4:43:02 PM Eastern Standard Time, [email protected] writes: Hi Bert, Make sure to measure the noise on the Traco (on both input and output) We had some issue with noise from a couple of Traco models at work. We changed to Mean Well, and much less noise.... Br, Askild On Sat, Feb 8, 2020 at 8:10 PM ew via time-nuts <[email protected]> wrote: > Just got this in the mail I am sure they have related items. > We use with very good results Mean Well SD DC/DC products, for my Rb 8607 > project I plan on using Traco Power > > https://www.maximintegrated.com/en/design/reference-design-center/ref-circuits/7055.html?utm_source=Eloqua&utm_medium=email&utm_content=REFDES1234&utm_campaign=FY20_Q3_2020_FEB_ALL-BU_AMER_EE-Mail_EN > Bert Kehren > > In a message dated 2/8/2020 11:45:09 AM Eastern Standard Time, > [email protected] writes: > > Hi Taka, > > How about using the open frame linear supplies like the ones from Power > One or Lambda? > I usually pick these up when I find them, recap if needed and they're a > cheap and easy way to get a supply. > > Chris > KD4PBJ > > > On Feb 6, 2020, at 4:29 PM, Taka Kamiya via time-nuts < > [email protected]> wrote: > > > > I have been addicted to home brewing GPSDO, Rubidium, OCXO, and etc, > etc, etc. I don't mean making of these from scratch but taking a surplus > unit and encase them in ready-to-use form. Most of them are in U2 rack > case. > > > > One part of it that I really do not like is constructing a power supply > for each and every unit I make. Good power supplies are essential to clean > and stable timebase, I know. It is also heat generating as most of what I > make use linear regulators. But it's tedious and mandane to do it every > single time! So, I wanted to make a large enough power supply to provide > +24V, +/- 12V, and 5V. My plan was to have independent feed line for each > timebase unit. > > Is this even a good idea? I have no experience in this to make a > reasonable judgement. This plan would mean these power voltages will be > fed to each components without any local regulation. While I do plan to > put ferrite chokes and bypass capacitors at input, but since the whole > point is to eliminate local power supply components, there will be nothing > else in terms of isolation. > > Similarly, I was also thinking of having a large battery bank for 24 > volt supply. What type of battery is irrelevant and so as charging method > for this question. I have heard of this being done. But for units that > require 24 volts, that means there is no room for any type of regulation. > Most 24V batteries output varying voltage depending on state of charging. > I know 12V battery can produce as high as 13.x volt. Is anyone doing this > type of thing on this list? If so, would you be willing to share details? > > > > Appreciate any input. > > > > --------------------------------------- > > (Mr.) Taka Kamiya > > KB4EMF / ex JF2DKG > > _______________________________________________ > > time-nuts mailing list -- [email protected] > > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > > and follow the instructions there. > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
