[ARC5] DC to DC converter - the photo

[J Mcvey]

Les,

Mine looks similar, but I'm not sure it's exactly the same.
I was stymied on circuit tracing when I saw the Chinese characters on the 8 pin dip instead of numbers.
It appears to be a push-pull type switcher .  Without knowing the IC used, one can only speculate. Didn't seem worth the effort to go any further...it works.

Jim
    

    On Wednesday, April 25, 2018, 10:21:00 PM EDT, n2lxm at juno.com <n2lxm at juno.com> wrote:  
 
 Good Evening Les,

        I have not traced the unit in question. However the Power Supply
manufacture that I work for uses a similar transformer in what know as a
Top Switcher. So I would expect it to be a ferrite type transformer. The
Top switcher uses the DC rail ( 250 VDC -580 VDC ) voltage and steps it
down for +/- 15 V and 5 V supplies for control circuits.  In this case it
would be a step up conversion.

                                                    Jeff N2LXM
                                          Amateur Radio Operator
                                                      American
                                                        Patriot
                                    Proud Father of Two US Marines

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