Decibels
Posted in Learning

Decibels

The decibel is the base-10 logarithm ratio used to express an increase or decrease in power, voltage, or current in…

Band Stop Filter
Posted in Learning

Band Stop Filter

A band Stop Filter known also as a Notch Filter, blocks and rejects frequencies that lie between its two cut-off…

State Variable Filter
Posted in Learning

State Variable Filter

The state variable filter is a type of multiple-feedback filter circuit that can produce all three filter responses, Low Pass,…

Second Order Filters
Posted in Learning

Second Order Filters

Second Order (or two-pole) Filters consist of two RC filter sections connected together to provide a -40dB/decade roll-off rate. Second…

Butterworth Filter Design
Posted in Learning

Butterworth Filter Design

In the previous filter tutorials we looked at simple first-order type low and high pass filters that contain only one…

Active Band Pass Filter
Posted in Learning

Active Band Pass Filter

The principal characteristic of a Band Pass Filter or any filter for that matter is its ability to pass frequencies…

Capacitive Reactance
Posted in Learning

Capacitive Reactance

Capacitive Reactance is the complex impedance of a capacitor who’s value changes with respect to the applied frequency. In the…

Transformer Voltage Regulation
Posted in Learning

Transformer Voltage Regulation

Transformer voltage regulation is the ratio or percentage value by which a transformers output terminal voltage varies either up or…

LED
Posted in Components Learning

LED

Light Emitting Diodes or simply LED´s, are among the most widely used of all the different types of semiconductor diodes…

Zener Diode
Posted in Components Learning

Zener Diode

A Semiconductor Diode blocks current in the reverse direction, but will suffer from premature breakdown or damage if the reverse…

Full Wave Rectifier
Posted in Learning

Full Wave Rectifier

Power Diodes can be connected together to form a full wave rectifier that convert AC voltage into pulsating DC voltage…

Potentiometer
Posted in Components Learning

Potentiometers

Potentiometers and Rheostats create a change in their resistive value when a connected shaft is physically rotated. Resistors provide a…

Resistors in AC Circuits
Posted in Components Learning

Resistors in AC Circuits

Resistors can also be used in Alternating Current supplies where the voltages, currents, and power being consumed are given in…

Resistor Power Rating
Posted in Components Learning

Resistor Power Rating

Electrical Power is absorbed by a resistance as it is the product of voltage and current with some resistances converting…

Potential Difference
Posted in Components Learning

Potential Difference

The voltage difference between any two points in a circuit is known as Potential Difference and it is this potential…

Electrical Energy and Power
Posted in Learning

Electrical Energy and Power

Electrical Energy supplies the power required to produce work or an action within an electrical circuit and is given in…

Current Dividers
Posted in Learning

Current Dividers

Current Divider circuits have two or more parallel branches for currents to flow through but the voltage is the same…

Voltage Dividers
Posted in Learning

Voltage Dividers

Voltage Divider circuits are used to produce different voltage levels from a common voltage source but the current is the…

Kirchhoff’s Voltage Law
Posted in Learning Schematic

Kirchhoff’s Voltage Law

Kirchhoff’s Voltage Law (KVL) is Kirchhoff’s second law that deals with the conservation of energy around a closed circuit path….

Voltage Sources
Posted in Learning Schematic

Voltage Sources

A Voltage Source is a device that generates an exact output voltage which, in theory, does not change regardless of…

Maximum Power Transfer
Posted in Components Learning

Maximum Power Transfer

Maximum Power Transfer occurs when the resistive value of the load is equal in value to that of the voltage…

Nortons Theorem
Posted in Components Learning

Nortons Theorem

Nortons theorem is an analytical method used to change a complex circuit into a simple equivalent circuit consisting of a…

Thevenin’s Theorem
Posted in Learning

Thevenin’s Theorem

Thevenin theorem is an analytical method used to change a complex circuit into a simple equivalent circuit consisting of a…

Nodal Voltage Analysis
Posted in Learning

Nodal Voltage Analysis

Nodal Voltage Analysis finds the unknown voltage drops around a circuit between different nodes that provide a common connection for…

Mesh Current Analysis
Posted in Learning

Mesh Current Analysis

Mesh Current Analysis is a technique used to find the currents circulating around a loop or mesh with in any…

Contactless Voltage Tester
Posted in Schematic

Contactless Voltage Tester

Contactless Voltage Tester