Monday, March 20, 2017

3/16/2017 Mesh Analysis+ "NODAL ANALYSIS LAB"

3/16/2017

We started the class by doing "Nodal Analysis Lab"

Setup:

Measuring the resistance of the resistors





Making sure the power supply is 3V




Voltage across each resistors:




The rather messy one ( the setup that is used for regular ungrounded 3v power supply)



We change it around after knowing the black box is grounded;



Final setup (SO MUCH CLEANER THAN BEFORE!)







****Note****
-Turns out in the analog discovery box, it is internally grounded. This makes it unnecessary to put more grounding cable as if we would if we use regular power supply.
- Red cable is always +5V , while  white cable is always -5 V. Yellow cable is adjustable through the wavegen tab.


Class notes:




Mesh analysis

Mesh analysis differs from nodal analysis in that one analyzes voltage, whereas the other one analyzes current.

Mesh is a loop that doesn't have any other loops within it.

When there is a current source that is in the middle of two meshes, we could combine them into a SUPERMESH!

Mesh analysis is only usable in planar circuit.


Summary:
- Analog discovery box enable us to reduce the number of cable needed vs. when we uses conventional power supply.
- I learn that we could have more than just 2 power supply out of the analog discovery box (3 that we uses today).
Mesh analysis is useful, but not usable in anything other than planar circuit.

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