Commit 3b1f3921 authored by Ruben Castro's avatar Ruben Castro

Update README.md

parent 956c3c42
......@@ -67,14 +67,18 @@ TOP plane, and kept the Bottom ground plane as clear as possible for the Gate Dr
Basic definitions I learned in the process-
Bulk Capacitor - Capacitor used to be capable of taking over battery in certain sags. It is
set as close to the input as possible. In this case an electrolytic >=10uF.
Decoupling Capacitor- Capacitor used to give power to certain components or devices
similar function to bulk capacitor, except placed near individual components.
Like a local bulk capacitor.
Rsense -Shunt Resistor used for current sensing on the low side of the h-bridge.
In this case- 7mOhm. Current can be measured by taking the difference between
each side of the resistor to measure voltage drop, then V=IR
Net Ties- Just like a trace, except its meant to be isolated from other traces or
pours around it. Used here for Rsense, where we want to measure difference
between ground and the voltage before the resistor, but we want the traces
......@@ -84,6 +88,7 @@ Kelvin Connection- Way of connecting traces to Rsense. It just makes sense
Take it for granted. Google how to do it. It's very simple.
PCB guides:
45 degree traces only
Kelvin Connection for Rsense
Always have a ground plane.
......@@ -95,8 +100,12 @@ Many many more to be copied from my notebook soon.
Sources:
MOSFET: https://www.digikey.com/product-detail/en/alpha-omega-semiconductor-inc/AON7410/785-1581-1-ND/3621507
Gate Driver: http://www.ti.com/product/DRV8701/technicaldocuments <<< A bunch of great resources there for general pcb layout knowledge.
General TI-DRV-style Motor Driver PCB Layout manual: http://www.ti.com/general/docs/lit/getliterature.tsp?baseLiteratureNumber=slva959&fileType=pdf
Great Resource on ground planes - https://www.maximintegrated.com/en/app-notes/index.mvp/id/5450
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