Power Distribution Architecture
Power Supplies
Components that supply power without requiring an input.
Part Number/Description & Qty. | Supply Voltage Range | Current Rating | Power Rating | Connector Type | Misc. Notes |
---|---|---|---|---|---|
6S LiPo batteries x 2 or 4 | 19.2V - 25.2V (22.2V nominal) | 300A (600A burst) | - | XT90 | 5000mAh capacity (111Wh), will be connected in series to create a 12s battery (voltage doubled) Currently discussing if we should have 2, 4, or 6 batteries (pairs of 6s wired in parallel for more capacity) |
3S LiPo batteries x 1 | 9.6V - 12.8V (11.1V nominal) | - | - | - | 4000mAh capacity (47.2Wh capacity) Being used to power camera/video systems. |
Voltage Transformers/Regulators
Devices that are capable of providing a voltage rail or converting one voltage into another (i.e. stepping voltage up or down).
Part Number/Description & Qty. | Input Voltage Range | Output Voltage(s) | Current Rating | Power Rating | Power Connector Type | Misc. Notes |
---|---|---|---|---|---|---|
PDB500[X] Boards x 1 | 12V - 50.4V nominal, 60V peak | 4S - 12S battery voltage (for ESCs) 12V 5V | Total: 500A, 1000A burst 12V, 5V: 3A Â | - | Exposed pads, varying sizes | Will need continuous airflow (i.e. fan, or exposure to the air) to achieve max. current ratings, otherwise it will probably overheat |
@Nathan Green’s Power Module x 1 | 12S (36V - 50.4V) | 5.2V | 5A continuous, 9A peak | - | Exposed pads |  |
Power Consuming Devices
Any device that consumes power is listed below with its specifications.
Mandatory Airside Components
Part Number/Description & Qty. | Input Voltage Range | Current Draw | Power Consumption | Power Connector Type | Suggested Power Source(s) | Misc. Notes |
---|---|---|---|---|---|---|
Vector Nav (Rugged) x 1 | 3.3V - 14V | 250mA @5V | 1.25W | Harwin M80 (10 pin male) | Pixhawk 5/6 (see RFC for rugged harness) | Wired to GPS2 Port of the Pixhawk |
2.5V - 12V | 12 mA @12V | 0.288W | Â | Pixhawk 5/6 | Wired to GPS2 Port of the Pixhawk | |
120F3[X] ESCs x 5 | 15V - 50V | 120A max. continuous, 200A burst | - | Exposed pads | PDB500[X] board | Current draw numbers are max. ratings, should measure this to get a more accurate power consumption while running with our motors |
42V - 52V | Max. throttle: 52.93A 50% throttle: 11.68A 60A max. continuous | Max. throttle: 2483.87W 50% throttle: 558.10W | 3 phase wires | 120F3[X] ESCs | Power calculations based on nominal LiPo battery voltage (43.6V - 44.4V approx.) | |
12S LiPo (36V - 50.4V) | Max. throttle: 55.63A 50% throttle: 6.96A 60 max. continuous | Max. throttle: 2426.63W 50% throttle: 309.4W | Â | PDB500[X] board | Power calculations based on nominal LiPo battery voltage (43.6V - 44.4V approx.) | |
4.8 - 6V | 7.4mA idle, 160mA operating (no load) | - | 3 pin header cable | Pixhawk 5/6 5V rail that comes from PDB500[X] | Low continuous power consumption, needs a fairly stable voltage rail to avoid motors failing or causing rail to collapse | |
6V - 36V | 40mA - 250mA Current draw will increase if onboard regulator used for power | 480mW - 3W | Exposed TH pads | OSD board  |  | |
12V | 0.7A | Â | Â | Â | This component will only be used if VTX-1G3SE is not used Current draw is the rated current | |
RFD900x Modem x 1 | 3.5V - 5.5V, 5V nominal | 800mA peak | 4W | Male pin headers | Pixhawk 5/6 | Wired to Telem1 port of the Pixhawk (1.5A current limit, should suffice, see suggested pinout here) |
5V +/- 0.1V | 200mA peak, <140mA nominal | Max 0.7W | JST GH 1.25mm 4 pin | Pixhawk 5/6 | Powered off of the I2C port on the Pixhawk (default use case) | |
Pixhawk 6X x 1 | Max input: 6V USB input: 4.75V-5.25V Servo Rail Input Mx: 36V | 1.5A max. (Telem1 port) 1.5A max. (all other ports combined) | - | Clik-mate 2mm 6 pin x 2 (1 primary, 1 backup) | Nathan’s Power Module 5V rail from VBAT |  |
OSD Board x 1 | Telemetry: 5V (from pix) VBAT: 12V for VTX and Camera | - | - | JST GH 1.25mm 6 pin (Telemetry) Exposed pads (VBAT) | 3S battery for 12V 5V from Pixhawk | VBAT is the 12V rail that powers the cameras and VTX, telemetry is power for board itself + communications |
5V - 26V | - | 25mW - 500mW (adjustable) | Male pin headers | OSD Board | Input voltage is the same as output to cameras | |
5V - 40V | 100mA - 300mA | 500mW - 1.5W | JST GH 1.25mm 2 pin, 3 pin connectors (uncertain) | Lumenier Video Mux | Current draw is an estimate based on current draw of similarly sized cameras | |
5V | - | - | JST GH 1.25mm connectors (uncertain) | Pixhawk 5/6 | Powered off of the CAN port on the Pixhawk (default use case) | |
5V | <150mA | < 750mW | JST GH 1.25mm 10 pin (telemetry & power) | Pixhawk 5/6 | Powered off of the GPS1 port on the Pixhawk (default use case) | |
Airspeed Sensor x 1 | 3.3 - 5V | 3mA | 15mW @5V | JST GH 1.25mm 4 pin | Pixhawk 5/6 | Powered off of the I2C port on the Pixhawk (default use case). We can use the I2C breakout board to have multiple devices on the same I2C bus |
RGB LED strip | 12V | ~1.7A max | Most likely 10-20W depending on length | 2.54mm header harness | PDB500[X] board | Â |
Cytron H-Bridge Driver (for driving LED strip) | 12V input for LEDs | Â | Â | Screw terminal for 12V input and LED output | 12V from PDB500[X] | GPIO from Pixhawk will be used to drive this H-bridge PCB to control whether the LED strip is ON or OFF |
12V | 590mA | 6.7W | Â | PDB500[X] | Fan to cool avionics compartment |
Optional Airside Components
Part Number/Description & Qty. | Input Voltage Range | Current Draw | Power Consumption | Power Connector Type | Suggested Power Source(s) | Misc. Notes |
---|---|---|---|---|---|---|
NVIDIA Jetson TX2 + Quasar Carrier Board x 1 | 9V - 14V nominal, 19V peak | 750mA nominal, 2.5A max @12V | 30W | Screw terminal | Â | This component is optional |
1080p 2MP Global Shutter Color USB Camera Module - CV Camera x 1 | 5V | 160mA | 0.8W | Â | Lumenier Video Mux | Â |
Groundside Components
Part Number/Description & Qty. | Input Voltage Range | Current Draw | Power Consumption | Power Connector Type | Suggested Power Source(s) | Misc. Notes |
---|---|---|---|---|---|---|
TBS Tracer x 1 | Micro TX: 5-13V Nano TX: 5-9V | Â | TX: 1.1W | Â | Â | Â |
TX 16S Radio Controller x 2 | 6.6-8.4V | 400mA | Max: 250mW | Â | Â | Â |
RMRC 900MHz x 1 | 12V | 300mA | Â | Â | Â | Â |
Tank Race II VTX Video Relay x 1 | 5V | Â | Max: 350mW | Â | Â | Â |
5.8 GHz RC832 x 1 | 12V | Max: 200mA | Â | Â | Â | Â |
Analog FPV Goggles x 1 | 3.7-4.2V | Â | Â | Â | Â | Â |