In order to quantify current behavior, circuit analysis uses Kirchhoffs Current Law (KCL). The connecting point or junction, in an electrical or electronic circuit determines the relationship between currents according to this rule. At any circuit junction: Σ IOUT = Σ IIN The algebraic total of all currents entering the junction is represented by Σ IIN. […]
Understanding Current Sources with Calculations
Unlike voltage sources which focus on constant voltage, current sources are more concerned with ensuring a constant supply of current (amps). The current flow stays constant regardless of the voltage developed at their terminals (which is determined by other circuit components). Consider a water pump that continues to push a certain amount of water regardless […]
Understanding Voltage Sources with Calculations
A voltage source, which falls under the category of an active element, supplies a defined and constant voltage across its terminals. This voltage doesnt change in response to any other components in the circuit. But practically, or real-world voltage sources deviate from this ideal behavior. The rated voltage across the terminals decreases as the load […]
How to Calculate Star Delta Transformation
With methods like Kirchhoff’s Law, Mesh Current Analysis, and Nodal Voltage Analysis, we’ ve already mastered fundamental circuit analysis and can easily address problems with simple resistive networks. But how about complex three phase circuits? This is where the Star- Delta Transformation becomes so useful. This effective method greatly reduces the mathematical complexity of balanced […]
Understanding Maximum Power Transfer with Calculations
A circuit achieves maximum power transfer when the resistance of the load (the device receiving power) is precisely equal to the internal resistance of the voltage source. This internal resistance is often fixed and expressed in Ohms and is referred to as impedance if the circuit contains components such as coils (inductors) or capacitors. The […]
Norton’s Theorem: Working and Calculations Explained
Nortons Theorem, like Thevenin’s Theorem, offers a technique for streamlining complex circuits. It enables us to swap out complicated circuits with much simpler equivalents that just require one resistor and one source of current or voltage. This equivalent circuit is made up of, In basic terms, Norton’s Theorem reduces a complicated network of wires, resistors, […]