AAE450 Spring 2009 Power Group Tony Cofer Lander Nightime Shutdown 02/19/09 [Tony Cofer] [Power] Page 1

AAE450 Spring 2009 Nocturnal Power Controller  Save 11.5 kg  Controllable  Cost < $10  Size 2X2X1/2”  Weight~20 g  Power diss. 0.1mW  Requires 0.23 g battery [Tony Cofer] [Power] Controller Interface Solar Source Comparator w/hysteresis Actuator Page 2

AAE450 Spring 2009  Basic Circuit  Direct Addressing  Variable Limits [Tony Cofer] [Power] Page 3

AAE450 Spring 2009 Backup slide Parts and Price list  4081 Quad AND gate $0.59  4009 Hex Inverter $1.25  MC33102 sleep mode op amp $2.25  4066 quad line driver $0.63  4068 dual D-latch $0.44  Resistors 4 X 100k,2 X 2 meg $1.00  2 “X 2” circuit board $1.50  Total $7.66 [Tony Cofer] [Power] Page 4

AAE450 Spring 2009 Backup Slide - Actuators [Tony Cofer] [Power] Page 5 Common Relay Power Mosfet Pulse shut-off/turn-on