1. 1 Laser Swarm EPS Final Design Solar panel hold down and release mechanism Solar panel deployment Pointing driver Bus regulation Battery Solar panels Summary

2. 2 Laser Swarm Hold down and release mechanism DutchSpace Thermal Knife Dyneema wires “Cutting” by thermal knife Low shocks High reliability

3. 3 Laser Swarm Hold down and release mechanism

4. 4 Laser Swarm Solar panel deployment Use of smart memory alloys High reliability No pyrotechnic shocks

5. 5 Laser Swarm Pointing driver To fully point solar panels towards the Sun Driven by stepper motor Increased accuracy by using gear head

6. 6 Laser Swarm Bus regulation: DC/DC convertor

7. 7 Laser Swarm Battery Lithium-ion cells 158 Wh/kg Module consists of 7 cells connected in series Battery consists of 2 modules connected in parallel 28 Vdc at 6Ah 1 battery for the receivers, 3 for the emitter

8. 8 Laser Swarm Battery

9. 9 Laser Swarm Solar panels Triple-junction cells Receiver area: 0.5 m 2 Emitter area: 1.4 m 2

10. 10 Laser Swarm Bus regulation: DC/DC convertor Electrical block diagram

11. 11 Laser Swarm Summary - receiver Part Dimensions [mm] Length Width Height Weight [g]Power [W] Driver3066021.41 Battery1681021010000 Deployment12050101204* Convertor956017801.5 Shunt regulator2.82.61.050.10.5 Thermal knife60503828015* Wiring---2300.28 Solar Panels500 0.367230 * One-time application

12. 12 Laser Swarm Summary Receiver: Mass: 3.6 kg Cost: $ 266 000 Emitter: Mass: 5.8 kg Cost: $ 541 000