Understanding the nuances between different types of MOSFETs is crucial for anyone venturing into the world of analog and digital electronics. While both depletion-mode (D-MOSFET) and enhancement-mode (E-MOSFET) MOSFETs are fundamental building bloc…
I have always been eager to explore motors, robotics, drones, and similar technologies. For me, building these systems is one of the most enjoyable ways to learn physics and engineering concepts. Through this journey, I’ve come to understand the cri…
While learning to repair my laptop I found MOSFETs with 8 pins in the schematic. SI7121DN MOSFET is one example of such mosfet which is new to me and back in the engineering college I never encountered or hear of 8 pins MOSFET. I am writing this …
I found this SI7121DN MOSFET on dell inspiron laptop during repair and wanted to know what it is? why it is used? what are its alternatives or replacement MOSFET. The SI7121DN is a high-performance N-channel MOSFET made by Vishay, often used in p…
I have writing notes on my journey to learning to repair laptop motherboards. I have a damaged dell inspiron laptop and wrote about it in my note starting point to repair my Laptop . In the second note, Dell Inspiron Power Supply Revisted For Repai…
Differential amplifiers are key components in many electronic circuits, enabling the amplification of the difference between two input signals while rejecting common-mode noise. They are essential in applications like audio processing, instrumentati…
The choice among IRF540 , IRF740 , and IRFZ44 depends on the specific application and the parameters you care about most, such as voltage rating, current handling, R D S ( o n ) _{DS(on)} D S ( o n ) , and switching frequency. Here's a compar…
Hello everyone! Today, we will demonstrate the working principle of a RC snubber circuit with R and C value calculation and simulation in Proteus. A snubber circuit is a crucial component used in power electronics to suppress voltage spikes and pro…
Inductive loads like flyback transformers, relays, or motors often cause high-voltage spikes when a transistor interrupts their current. These spikes can damage components and cause EMI issues. Snubber circuits are the most common solution, helpi…
