Hello,
I will trying too make it clear.
The telescope has 2 110Vac synchronised clock drive motors @60hz
The motors are in parallel connection connected too a inverter/converter.
Too controls the speed for the motors there is a controller connected too the inverter/converter.
The inverter/converter has two inputs 12Vdc & 220Vac 50hz EU
Inside it is the 12Vdc direct connected too the transformer by splitting the negative to 2 D315 mosfets.
with 1 resistor too on the negative side @ (black-silver-black/green) also is there on the 2 negative input of the transformer bridged by a 10 MDF 50 WV bipolar capacitor.
From the 12Vdc there is a connection too the control unit like:
Negative—> capacitor(1000uF 63V —> input control unit
Positive—> capacitor —> 39 ohms risistor (RSN 2W) —> input control unit
On the control inside there is also a capacitor too the +&- with a value 470uF 16V
Inside the control unit is this —>
And this is the inverter