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Power Supply and Battery

To make ALBATROSS as versatile as possible, we implemented a battery and a unique power supply. Our power supply enables the device to be powered and charge its battery from almost any available power source.

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Synchronous Buck Boost Converter

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  • Designed by Ruben Henri

  • Utilizes Texas Instruments LM5176 IC

  • Input: 6-42VDC @ 14A MAX

  • Output 14V @ 6A MAX

  • Switching Frequency: 300kHz

  • Efficiency: 98.5%

3S LI-PO Battery Charger

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  • Designed by Ruben Henri

  • Utilizes MAXIM MAX1873SEEE+ IC

  • Input: 14-26VDC @4A MAX

  • System Output: 8.8-13.8V (Vin-1.2V or Vbatt-1.2V)

  • Output to battery: 12.6V MAX @3A MAX

  • Switching Frequency: 300kHz

  • Efficiency: 96%

  • Charges our battery fully in two hours

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AC/DC Switch Mode Power Supply

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  • Purchased

  • S60-12

  • Input: 110-250VAC 47Hz-63Hz @2A MAX

  • Output: 14V @5A MAX

  • Switching Frequency: 77kHz

  • Efficiency: 76%

Battery Pack

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  • Purchased

  • Zeee High Performance 3S Lithium Polymer Battery Capacity: 5200mAh

  • Output: 11.1V nom @416A MAX

  • Deans Connectors

  • Integrated Cell Balance Board

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Current Sense Modules

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  • Purchased

  • ​2x INA260 Power Sense Modules

  • One positioned between the battery and charger

  • One positioned at the input of the Raspberry Pi

  • Uses I2C to send power data to the GUI

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