Two of the most common three terminal semiconductor nowadays are MOSFET and BJT. MOSFET is metal oxide semiconductor field effect … MOSFET and BJT ComparisonRead more
How to Drive a Relay with a MOSFET
It is very common application to drive a relay with a MOSFET. From household applications to automotive are using this … How to Drive a Relay with a MOSFETRead more
How to Select a Circuit Breaker – Basic Tips
Circuit breaker is the most common short circuit and over current protection. It is a simple electrical device but very … How to Select a Circuit Breaker – Basic TipsRead more
How to Select Inductor for Boost Converter
1. Select Inductance Value a. Define the switching frequency for the boost converter Example: Fsw = 300kHz b. Define the … How to Select Inductor for Boost ConverterRead more
Inverting Buck-Boost Step by Step Design Guide
If you are planning to make your own inverting buck-boost but don’t know where to start, therefore this inverting buck-boost … Inverting Buck-Boost Step by Step Design GuideRead more
Quasi Resonant Flyback Primary Current Derivation
In order to derive the primary current of a Quasi resonant flyback, it is important to know the waveform of … Quasi Resonant Flyback Primary Current DerivationRead more
Quasi Resonant Flyback Transformer Saturation Analysis
One of the very important aspect to look at in dealing with quasi resonant flyback transformer is the saturation. A quasi-resonant flyback transformer is not actually a transformer that we usually know. A transformer will transfer energy from the primary to the secondary at real time. However, the flyback converter will store energy on the primary and then transfer that energy to the secondary somehow. This action makes a flyback transformer prone to saturation if not properly been designed.
MOSFET Reverse Battery Protection
You may not know how to use MOSFET as reverse battery protection. The most common method is using a diode. However, diode voltage drop is high and this will creat issue in low voltage circuits. That is the reason many use MOSFET as reverse battery protection due to its very low on state voltage drop.
Quasi Resonant Flyback Duty Cycle Derivation
Quasi Resonant flyback duty cycle will reach maximum when it operates in the transition mode or boundary region. However, as long as the operation will stay at the discontinues mode (DCM), that is the desired region of operation, the Quasi resonant flyback duty cycle will be variable.
Quasi Resonant Flyback Step by Step Design Guide
If you want to make a quasi resonant flyback but do not know where to start, therefore this Quasi Resonant Flyback Step by Step Design Guide is perfect for you. Follow below steps.