Electrical and Electronics Engineering Blog

Derivation of Diode Current Equation, Calculator, and Example

August 29, 2024September 4, 2019 by Gul Faraz

The diode current equation depends on the dark saturation current, the charge of an electron, and external voltage. We also provide a calculator for the diode current equation.

3 Methods of testing a diode with multimeter and oscilloscope

August 26, 2024August 15, 2019 by Gul Faraz

Testing a diode with a digital multimeter in two ways, diode testing portion, and ohmmeter. A diode test is considered passed if it shows low resistance/voltage drop on forward bias and high resistance/voltage drop in reverse bias. A diode curve tracer uses an oscilloscope for VI characteristics graph.

Diode Voltage Doubler Circuit with Tripler and Quadrupler Explained

August 26, 2024August 9, 2019 by Gul Faraz

Voltage Multipliers are electric circuits to increase the voltage by a factor of two, three or four in case of Voltage Doubler, Tripler or Quarple respectively. The Voltage multiplier circuit uses capacitors and resistors to enhance the voltage level.

Full Wave Bridge Rectifier with Capacitor Filter Design Calculation and Formula

January 15, 2025June 3, 2019 by Gul Faraz

full bridge rectifier current flow during positive half cycle

The Bridge type full wave rectifier can convert an AC to DC by the mean of four diodes in such configuration that the output peak voltage remains equal to secondary of transformer peak. In each half cycle, a set of two diodes conduct and block the current alternately.

Center Tapped Full Wave Rectifier with capacitor filter

August 27, 2024March 10, 2019 by Gul Faraz

A center tapped rectifier converts AC voltage to a DC voltage by the means of center tap transformer and two diodes. The output DC voltage of the rectifier is half of the secondary voltage.

Half wave Rectifier with a Capacitor Filter and Ripple Factor Calculation

August 27, 2024January 20, 2019 by Shahab Yousafzai

Half wave rectifier Circuit with Capacitor in filter

Rectifiers are the circuit which converts AC Voltage to DC voltage. The half wave rectifier is the simplest type of rectifier with a single diode. The output of the rectifier is filtered with a capacitor filter to smoothen.

Forward Bias Diode and Reverse Bias Diode Characteristic Graph

August 29, 2024December 25, 2018 by Shahab Yousafzai

A diode can be connected in forward and reverse bias with a source. In Forward bias connection, a diode conducts current like a closed switch. Where in reverse bias, a diode blocks current like an open switch.

Depletion Region formation in PN Junction diode and potential barrier

August 27, 2024December 9, 2018 by Shahab Yousafzai

At the time of developing the PN junction diode, the depletion region is formed. Where free electrons and hole cross the conjunction between P- and N-region and recombine.

Difference between intrinsic and extrinsic semiconductors: P-Type and N-Type

August 27, 2024November 17, 2018 by Gul Faraz

A semiconductor is a type of electrical material, which is used in electronic devices like PN junction diode, transistor and many more a replacement for a vacuum tube. The semiconductor can be intrinsic or extrinsic, where extrinsic has N-type and P-type.

Difference between Electrical Conductor, Semiconductor, and Insulator

August 27, 2024October 11, 2018 by Gul Faraz

Based on electrical resistivity, a material can be divided into three types: conductor, insulator, and semiconductor.