- #1
Differential Equation for Electronic Circuit
- Thread starter Agnostic
- Start date
Click For Summary
Homework Help Overview
The discussion revolves around formulating a differential equation for an electronic circuit, specifically focusing on the application of Kirchhoff's laws and the treatment of currents and voltages in the circuit analysis.
Discussion Character
- Conceptual clarification, Assumption checking, Problem interpretation
Approaches and Questions Raised
- Participants are examining the setup of loop equations, questioning the signs associated with current and voltage terms, and discussing the choice of variables in the context of circuit analysis.
Discussion Status
The conversation includes clarifications about the formulation of equations and the treatment of voltage signs. Some participants have pointed out potential errors in the equations, while others are exploring the implications of using voltages as independent variables in the analysis.
Contextual Notes
There are indications of confusion regarding the definitions of currents and the treatment of voltage drops versus rises, as well as the need for standardization in the approach to circuit analysis.
- #2
berkeman
Admin
- 69,479
- 25,004
Why is it i1+i2 in the first loop equation and i2-i1 in the second? Both currents are defined clockwise in your circuit? Also, you need to standardize on whether you are adding up voltage drops or rises. You have a positive number for both Vo and i1R, even though one is a voltage rise, and the other is a voltage drop...
- #3
- #4
berkeman
Admin
- 69,479
- 25,004
You mean the only problem left is that first + sign? Have you fixed it since that new.PNG?
- #5
Agnostic
- 110
- 0
There we go.
- #6
berkeman
Admin
- 69,479
- 25,004
Wherever you go, there you are. Quiz question -- what movie is that from?
- #7
SGT
When analyzing circuits with capacitors it is best to use voltages as independent variables, to get a differential instead of an integral equation.