Post on 06-Jan-2018
description
AAE450 Spring 2009 [Tony Cofer] [Power]
Power Group
Tony CoferLander Nightime Shutdown
02/19/09
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]
ControllerInterface
Solar Source
Comparatorw/hysteresis
Actuator
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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 RelayPower Mosfet
Pulse shut-off/turn-on