Heat Sink Thermal Resistance Calculation Easy Explanation

Posted on November 26, 2015November 26, 2015 by electronicsbeliever

For power devices like power MOSFETs, power BJT and power diodes, heat sink is very important to provide thermal relief. From the name itself, it will sink the heat from the power devices and help con... Read More

MOSFET RDSon Temperature Coefficient Usage and Interpretation

Posted on November 23, 2015November 23, 2015 by electronicsbeliever

MOSFET RDSon temperature coefficient is positive. Meaning, it will increase with increasing temperature. In this article I will discuss and interpret MOSFET RDSon temperature coefficient that is often... Read More

How to Use MOSFET RDSon Data from the Datasheet

Posted on November 22, 2015November 26, 2015 by electronicsbeliever

In this article I will discuss the proper way on how to use MOSFET RDSon data provided by datasheets. RDSon is a channel on-state resistance of MOSFET. This is provided in the data sheet taken from di... Read More

Worst Case Analysis and Tolerance Simulation Using LTSpice

Posted on November 20, 2015November 20, 2015 by electronicsbeliever

I believe there are few ways to perform worst case analysis and tolerance simulation using LTSpice. In this article, I will be sharing my own technique. This can be an easier approach and at the same ... Read More

NPN Transistor Biasing Tool and Checker in Excel

Posted on November 18, 2015November 18, 2015 by electronicsbeliever

In this article I will discuss the feature of the NPN transistor biasing tool and checker in excel that I made. This is very useful for design engineers that don’t want to perform simulations and lo... Read More

Sizing the Inductor of Buck Converter and Setting its Operation

Posted on November 11, 2015February 12, 2016 by electronicsbeliever

One of the most important parts of a buck converter is the inductor. Sizing the inductor of buck converter and setting its operation mode makes the converter function correctly. The shape and the magn... Read More

Buck Converter Duty Cycle Derivation

Posted on November 11, 2015November 11, 2015 by electronicsbeliever

In this article I will share to you the methods I used in buck converter duty cycle derivation. We will consider the ideal and the real scenarios. In ideal buck converter duty cycle derivation, you do... Read More

Common Application of Optocoupler in Today’s Electronic Circuits

Posted on May 4, 2015September 29, 2015 by electronicsbeliever

The most common application of Optocoupler is signal isolation. It provides complete isolation because its input side is not electrically connected to the output side. Its input side is a light source... Read More

Disadvantage of using Optocoupler with Low CTR for Switch Operation

Posted on May 4, 2015June 20, 2015 by electronicsbeliever

In optocoupler, CTR stands for current transfer ratio. This is comparable to the current gain beta in BJT. This is the most important parameters of an optocoupler to function normally. There are sever... Read More

Optocoupler Device CTR and Circuit CTR Explained

Posted on April 30, 2015June 19, 2015 by electronicsbeliever

When you already heard about Optocoupler devices, you may be heard also about CTR. CTR stands for current transfer ratio. In bipolar junction transistor this is the so called current gain or simply be... Read More

3 of 9
« Previous
1
2
3
4
5
…
9
Next »