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…

Diode Clipper also known as a Diode Limiter
Posted in Learning Schematic

Diode Limiter

The Diode Clipper, also known as a Diode Limiter, is a wave shaping circuit that takes an input waveform and…

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…

DC Circuit Theory
Posted in Learning

DC Circuit Theory

The fundamental relationship between voltage, current, and resistance in an electrical or electronic circuit is called Ohm’s Law. All materials…