New Power Board

[mmartin4064]

Due to the weight of current power delivery solutions a smaller more lightweight power source is needed. The target is to use one single lightweight Lithium Polymer cell that provides a nominal voltage of 3.8v. More information about Lithium Polymer cells can be found here. For information about the specific cell that we are leveraging in this project look here. This technology provides many benefits over its Lithium Ion or can cell brethren. This however causes issues as our motors require 12v to operate, and the cell will only provide a max voltage of 3.7v. The solution I propose to this problem will be to use boost converters to create a larger operating voltage, and in turn allow the use of this smaller battery. This will require a large overhaul of the power delivery system on our designs the details which are listed below List of requirements

• Leverage the use of boost converters to create both 12v and 5v rails
  • Resources:
  • TI's Power Designer this web based application allows you to give it your input and output voltage and current requirements and it will generate a circuit that provides that for you
  • Reference Designs The V2 revision of the airboat hardware has examples of boost converters being used for this exact purpose
• Add a charging circuit to charge the battery
  • Resources:
  • List of TI Parts This is a list of all Li cell charging IC's that TI offers. This will include datasheets and other useful information when choosing a charging IC

[AnjaliViv]

18V15Aboostconverter.pdf Hi, Here's the generated boost converter from TI's power designer. I couldn't find one that specifically catered to 12V, but this is the first result that came up without any additional IC features or adjustments. The parameters I put in: Input range of 3 V - 4.2 V, nominal 3.7 V Output of 12 V at 1.32 A (rated current in product description)

Let me know if the parameters I put in are right and/or your thoughts on the generated boost converter design.