[simpits-tech] Digital to Synchro Interface Project

[Cris Harrison]

yup! audio amps are the way to go!!


On Fri, Jan 13, 2023 at 2:33 PM David C. Allen <dca911t at gmail.com> wrote:

> Nice project.
>
> Or a mechanical version
>
> [image: IMG_3460.jpeg]
>
> I got the parts list from Rob Archer.
>
> David
>
> Good friends are the rare jewels of life, difficult to find and impossible
> to replace!!
>
> On Jan 13, 2023, at 11:59 AM, JOHN POWELL <mike.powell at comcast.net> wrote:
>
> 
> Here's a status update on a project I've been working on approximately
> forever. This is the current incarnation of a digital to synchro interface.
> It is intended for use with simple synchro receiver style gauges, as
> opposed to more complex instruments incorporating servo loops.
> <DTS420.jpg>
>
> This version uses low cost class-D audio power amplifiers to drive the
> synchro. It does not require a 400Hz power source. It operates at about 40%
> of the spec synchro voltages which seems to work just fine. I just received
> some transformers  that might be useful if higher voltages are needed or if
> transformer isolation is desired. It can be operated at frequencies below
> 400Hz which should increase synchro torque.
>
> Interfacing is through the Nano's USB port of through a CAN Bus module.
>
> Cost containment and parts availability are design goals for this version
> so there are lots of simple, cheap parts rather than a few complex $$$
> parts.
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