@page powerDesign Power Design 

# Boost

## LTSpice Simulations

* The LTSpice circuit includes input and output resistors for input and output power calculations
* An RC circuit can be added at the input for time-delay for output capacitor charging
* Output power = (16V)(2A(max))=32 Watts
* Input power = (12V)(Max FET current). Max FET current should be 2-3x the desired output current
* Rsense = Vsense(min)/IL(max). Vsense is given in LT1619 Datasheet: 40mV(min). For IL, we are using max FET current
  * For Rsense, a smaller R value gives less output ripple voltage in simulation. 
  * Rsense is basically setting the current through the FET
* Voltage divider equation can be found in datasheet for LT1619

## Altium

* Inductor is 10uH MSS1210-103MEB. Dr. Bazuin suggested its use as Sunseeker has lots of them

* Replaced the SI9804DY FET (used in LTSpice) with the FDS6680A as the SI is obsolete

* Replaced the MBR735 Schottky (used in LTSpice) with the MBRD835LT4G because 735 is not surface mount

  

# Buck



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