I am having some difficulty figuring out an appropriate TVS Diode that will be appropriate for my intentions. I did a google search and found some notes by MicroSemi (PDF) on this process. To be honest, I have no idea how to perform all these calculations. I just want to get my project going safely.
My system is 24V and is using the MCP263 motor controller with 1000 Watt max peak current motors that nominally operate at 250 Watts 22V. I am trying to build the protection circuit shown in the Data Sheet on page 8.
Here is a list of components I have to complete the circuit
- Switch S1 = Battery cutoff Switch or High Current Continuous Relay - https://www.amazon.com/gp/product/B007O0BBFM or https://www.amazon.com/gp/product/B001FQMZO2
- R1 = 50 Watt 5 Ohm 5% Power Resister - https://www.amazon.com/gp/product/B008MLJM58
- D1 = Unknown TVS Diode
- F1 = Unknown Fuse (roughly 40A)
I am stumped on D1, is there a general part I can order that should be safe enough for general use with the motor controller? I posted a comment with the general rundown of my project with an attachement of a rough schematic of my design and links to most components I will be using at this link.