• [WORK JOB] - Pulsed Current Interrupter

    10/05/2023 at 23:12 0 comments

    Containing a sizable capacitor bank, this PCB both initiates and interrupts the main capacitor discharge via the use of modern pulsed IGBTS that are paralleled and pushed to their limits. The primary limitation is electrical clearance and the use of surface mount packages, which are limited in their maximum current ratings (even when pulsed). The act of interrupting capacitor bank discharges like this is difficult, but allows efficiency gains from retained energy.

  • [WORK JOB] - Pulsed Current Discharger

    10/05/2023 at 23:11 0 comments

    Containing a sizable capacitor bank, this PCB initiates the main capacitor discharge via the use of a trigger mechanism with current limiting techniques. The primary limitation is electrical clearance and the requirement to use surface mount packages, which are limited in their maximum pulsed capability when compared with their though-hole counterparts.

  • [WORK JOB] - 50W DC-DC Step-Up Cap Charger

    10/05/2023 at 23:10 0 comments

    Taking a 28Vin nominal input, this DC-DC step-up converter charges the main capacitor bank and provides feedback on its performance using instrumentation amplifiers. Importantly, all charging, measurement and auxiliary operations are galvanically isolated from input to output. This was simplified by the fact that voltage regulation is not required, but instead only a confirmation that a target threshold has been reached.