Analogue electronics

Zener Diode and Emitter-Follower/Series Voltage Regulators

Almost all electronic devices and circuits need a dc source of power for their operation. While batteries and dry cells…

6 months ago

Gunn Diode – Features, Operation & Applications

Features of a Gunn Diode A gunn diode is made up of only N-type semiconductor which is typically sandwiched between…

9 months ago

Voltage Doubler Circuit Operation

A voltage multiplier is a specialized rectifier circuit capable of producing dc output voltage which is theoretically an integer times…

10 months ago

Clamper Circuits – Features & Applications

A clamper circuit or dc restorer is used to clamp a peak of a waveform to a specific DC level…

10 months ago

Clipper Circuits – Features & Applications

A clipper also referred to as a limiter is a circuit which removes the peak of a waveform. A clipper…

10 months ago

PIN Diode – Features & Applications

PIN diode is characterized by fast low capacitance switching. A PIN diode is fabricated in a similar fashion to a…

10 months ago

Diode & Filter Applications in Amplitude Modulation (AM) Detection Circuits

The operation of a typical AM audio frequency signal is illustrated in the Figure 1.0 where vin is the modulated…

10 months ago

Unijunction Transistor Features and Operation

The unijunction transistor (UJT) is a three terminal, single-junction device which exhibits negative resistance and switching characteristics totally unlike those…

1 year ago

The Varactor Diode

The varactor also termed to as varicap, is a diode that behaves like a variable capacitor, with the PN junction…

1 year ago

DC Motor Power Op-amp Speed Controller

Let’s consider the functional diagram below: Figure 1 DC motor power op-amp speed controller functional diagram The D/A converter outputs…

2 years ago