Please let me know if this information exists elsewhere, thanks!
Target Motor: Pump; 3000-6000 RPM@70V,10A max - to run directly off Solar panels
I am aiming for a BOM cost of $40 for the VESC, and have selected the following components for a 100V-20A build
CS Amp AD84XX: $3x3 = $9 (can there be a cheaper alternate ?)
Gate drivers: IR2113S = $1x3 = $3 (can we use these in place of DRV series?)
MOSFET: IRFb4115 = $1.5x6 =$9
Isolated Power supply: upto 200V in 12V out: $1.5
LDO, caps etc = $9
Basic TO220 heatsink $1
Rest of the budget: shipping,taxes,misc,etc
- Does the above look ok ?
- Is there a cheaper alternate to AD84xx series ?
if this looks good, i'll start building one.
My commitment: if this works and if people are interested, will make 100 units available here @ cost+shipping as a thank you :)
FETs can always be swapped out for better performing ones.
My experience level: Done about 12 BLDC sensored and sensorless controller designs over the past 2 years - all trapezoidal control, never done FOC