Debugging item: space radiation

Countermeasure analysis and solution description

1. Add a 2.5mH common mode inductor to power output, make the transformer shielded and linked to primary earth wire: 

--------------------------------------------------------------------------------------------------------------------

2. Replace R12 with a 100ohm resistor, and parallel a 200PF capacitor between S-D pins of MOS tube:

--------------------------------------------------------------------------------------------------------------------

3. Wind AC input wire on the ferrite core for 4 turns, 

and add ferrite cores to DC output wire, motor input wire as well as motor's controlling wire:

--------------------------------------------------------------------------------------------------------------------

4. Link ferrite beads to motor power lines, and add a 1000PF capacitor between motor power supply and earth:

Testing item: data

-----------------------------------------------------------------------------------------------------------------

-----------------------------------------------------------------------------------------------------------------

--------------------------------------------------------------------------------------------------------------------