Fuse Electrical Parameters Explanation

Fuse is a very simple electrical part and yet needs to be properly selected. Its role in the circuit is very important actually. Selecting a right fuse starts with a good understanding on fuse electrical parameters. There are some important fuse electrical parameters to consider. These are the Current Rating, Ampere Square Seconds, Breaking Capacity and Voltage Rating. Fuse Electrical Parameters Explanation 1.

circuit analysis methods

Circuit Analysis Methods

There are several circuit analysis methods. In this article I will discuss the most common. In the proceeding discussion I will just use a resistor as an example but in actual application it is not limited to it. Popular Circuit Analysis Methods 1. Ohm’s Law Ohm’s law is very popular in resistive circuit. It states that the current flowing through


Fuse Operation and Principle

In this article I will discuss Fuse Operation and Principle. A fuse is a simple electrical part which consists of a wire and terminals on each end. It is plainly a passive device which protects the circuit in the event of a large current. When this happens, the fuse element will open and the circuit will become discontinuous. Fuse operation

MOSFET and BJT Comparisson

MOSFET Advantages Over BJT in Switching Converters

Way back several years ago, power supply designers and engineers are continuously searching for innovation. Long time ago what is available is only the linear type power supply. A linear power supply will consume a lot of power in order to provide regulation. This huge power consumption sacrifices the efficiency of the power supply. Try to imagine if you are


Opto Coupler CTR Explanation

Opto coupler CTR explanation is not well elaborated by other authors and before I was also having hard time of understanding what is it. Current transfer ratio or commonly known as CTR is the ratio of the collector current to the forward current of an optocoupler. It is synonymous to a current gain of a bipolar junction transistor. If this is the first

MOSFET efficiency factors

MOSFET Efficiency Factors for Switching Converters

We will discuss here the three main contributors of power losses of the MOSFET when used in switching converter or switch mode power supply. The main MOSFET efficiency factors are drain to source on state resistance, gate charge and the equivalent output capacitance.  Drain to source on state resistance or simply RDSon has a positive temperature coefficient (increases with temperature