This application solves electrical circuits using AC sinusoidal frequency domain analysis. which means it calculates:
- Nodal voltages for every node.
- Voltage difference on each element.
- Current through each element .
- Power supplied and/or power dissipated for each element in the circuit.
Circuit-Solver teats the circuit as a net list of elements (resistors, voltage sources, etc.) interconnected with each other.
- Node
- Resistor
- Capacitor
- Inductor
- Short Circuit
- Voltage Source
- Current Source
- Voltage Controlled Voltage Source
- Voltage Controlled Current Source
- Current Controlled Voltage Source
- Current Controlled Current Source
Before you insert the circuit you wish to solve, make sure that you name every element in the circuit.
Note: Names are case-insensitive and no two elements can have the same name unless they have different types.
Circuit-Solver stores the circuit in the form of a net list of elements.
3. 1. Insertion Format
Circuit-Solver allows you to edit the stored net list using three operations and has this general input format:
OperationType ElementType ElementName [ElementData]
Note: OperationType, ElementType, ElementName, and any string input in ElementData are converted to lowercase letters.
3. 2. Insertion Operation
Circuit-Solver have three insertion-related operations:
- add: Adds a new element into the circuit net list.
- rmv: Removes an existing element in the circuit net list.
- edt: Edits an existing element in the circuit net list.
- end: Ends the insertion and saves the net list.
3. 3. Element Input
Circuit-Solver have many elements but any element input starts with a string indicating its type and then is followed by the name of the element and then the element data which depends on the type of element and operation type.
Insertion Input Example
add cs I1 1 4 20K<1.02rad
edt cs I1 1 4 30+50iK
add r R1 1 4 8
add r R2 1 2 4
add r R3 2 3 5
add r R4 3 4 6
rmv r R1
edt r R2 1 2 5
end
- You must end your input with end operation.
- For more details on each operation input, check the documentation of the program.
- For details on each element input form, check the documentation of the program.
- You aren't required to input nodes individually, you can input only elements and Circuit-Solver will create the needed nodes for you.
- If you wish for a certain node to be the ground, let its name be "ground", otherwise the program will make the first source negative node be ground. If there's no source in the circuit, the program will take the ground as the first node entered.
- You can edit the circuit you have entered and change the ground node, or the input frequency.
Operation String:
"add"
Input Form:
add ElementType ElementName ElementData
Input Example:
add C C1 1 2 20u
Operation String:
"edt"
Input Form:
edt ElementType ElementName ElementNewData
Input Example:
edt C C1 1 2 40u
or
edt C C1 2 3 40u
Note: You can change any element data (e.g: PositiveNode, ElementValue, ControlElement, etc.) by entering new data.
Operation String:
"rmv"
Input Form:
rmv ElementType ElementName
Input Example:
rmv C C1
Element Type String:
"n"
Element Input Format:
n Name
Input Example:
n Node1
Type String:
"r"
Input Format:
r Name PositiveNode NegativeNode Resistance
Input Example:
r Resistor1 Node1 Ground 20K
Type String:
"c"
Input Format:
c Name PositiveNode NegativeNode Capacitance
Input Example:
c Capacitor1 Node1 Ground 20u
Type String:
"l"
Input Format:
l Name PositiveNode NegativeNode Inductance
Input Example:
l Inductor1 Node1 Ground 20m
Type String:
"sc"
Input Format:
sc Name PositiveNode NegativeNode
Input Example:
sc Short1 Node1 Ground
Type String:
"vs"
Input Format:
vs Name PositiveNode NegativeNode SupplyVoltage [InternalImpedance = 0]
Input Example:
vs Battery Positive Ground 9
Type String:
"cs"
Input Format:
cs Name PositiveNode NegativeNode SupplyCurrent [InternalAdmittance = 0]
Input Example:
cs Current1 Positive Ground 5
Type String:
"vcvs"
Input Format:
vcvs Name PositiveNode NegativeNode VoltageFactor ControlPositiveNode ControlNegativeNode [InternalImpedance = 0]
Input Example:
vcvs VolConVol1 Positive Ground 5 Positive1 Negative1
Type String:
"vccs"
Input Format:
vccs Name PositiveNode NegativeNode VoltageFactor ControlPositiveNode ControlNegativeNode [InternalAdmittance = 0]
Input Example:
vccs VolConCur1 Positive Ground 5 Positive1 Negative1
Type String:
"ccvs"
Input Format:
ccvs Name PositiveNode NegativeNode CurrentFactor ControlElementType ControlElementName [InternalImpedance = 0]
Input Example:
vcvs CurConVol1 Positive Ground 5 vs Battery
Type String:
"cccs"
Input Format:
cccs Name PositiveNode NegativeNode CurrentFactor ControlElementType ControlElementName [InternalAdmittance = 0]
Input Example:
vccs CurConCur1 Positive Ground 5 vs Battery
Circuit-Solver lets you input complex or real values in one of two ways:
1. Cartesian Format Allowed Formats:
(real)[prefix]
(imag)i[prefix]
(real)+(imag)i[prefix]
(real)-(imag)i[prefix]
(imag)i+(real)[prefix]
(imag)i-(real)[prefix]
Input Example:
50
30i
50+30iK
Note: You put the prefix at the end of the Cartesian form input.
2. Polar Format Allowed Formats:
(mag)[prefix]<(angle) //degrees
(mag)[prefix]<(angle)rad //radians
(mag)[prefix]<(angle)deg //degrees
Input Example:
10<20rad
10K<20deg
Note: You put the prefix after magnitude input in the Polar form input.
Circuit-Solver lets you specify a prefix to scale values.
| Prefix | Abbreviation | Scale |
|---|---|---|
| pico | p | |
| nano | n | |
| micro | u | |
| milli | m | |
| kilo | K | |
| mega | M | |
| giga | G | |
| tera | T |
Note: kilo, mega, giga, and tera have capital abbreviations.
