Transcript * Purdue Airbus - Purdue College of Engineering

Chandler Wall
Jigar Gandhi
John-Taylor Smith
Eric Zarowny
 PURDUE AIRBUS
POWER SUPPLY CONSIDERATIONS
Single battery operation
 Pi (capacitor-input) filter will be required to filter
unwanted frequencies introduced by motors
 Multiple operating frequencies

 Level
translators for digital logic
 I2C translator for microcontroller-camera link

Multiple destinations
 PCB
for main components
 PCB for camera
MICROCONTROLLER CONSIDERATIONS

Bulk/Ceramic bypass capacitors
0.1 µF
 0.01 µF

Dual-resistors and a capacitor for reset circuit
 Located opposite the power supply components
 Power supply for microcontroller will be the nearest
power component

Level translators will be located near the header pins for
their associated components (camera & autopilot)
 Voltage regulators for all components will be located
away from the microcontroller

MISCELLANEOUS CONSIDERATIONS

“Fuel” gauge
 Potential
for high current operation around the “fuel”
gauge components
 Passive circuit components are required to correctly
sense the lithium-ion polymer battery levels
 Independent connections to each of the battery cells
(3 in total)

Xbee-PRO
 The
location of the XBee header will affect RF signal
quality
MISCELLANEOUS CONSIDERATIONS (CONTINUED)

Camera
 The
camera will not be located on the main PCB
 Headers will be required on the main PCB
 The camera will require level translators for all logic
signals

SD Card
 Mounted
on the main PCB
 No level translation required
PCB FOOTPRINT/PRELIMINARY DESIGN