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Designing an LLC Converter
In this post, I will share one of my electronic projects: designing an open-loop 15 Watts LLC converter circuit. This post will cover the…
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Designing a Type III Compensator for Cuk Converter [also applicable to Boost, Buck-Boost]
PLECS simulation files: Simulation_DC_converters-Voltage_controlled The Ćuk converter is a low ripple current buck-boost converter. A Ćuk converter combines a boost and buck converter with a…
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Deriving the Small-Signal Model of the Boost Converter using State-Space Averaging
The small-signal model is so handy in predicting the behavior of the non-linear system. But sometimes the process of deriving the small-signal model equation can…
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Deriving the Small-Signal Equation of a Buck Converter
When designing a control strategy for an electronic circuit we have to be able to model the circuit in mathematical expression. This time I will…
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Choosing the Transformer Size of the LLC Converter
A transformer is a critical component in an LLC converter, and designing it will be challenging as there is no straightforward method for choosing the…
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Using LTspice to Run the Parametric Analysis for Designing Resonant Tank of an LLC Converter
This time we will use LTspice to run the simulation of the linearized model LLC converter. In order to calculate the value of each element…
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Choosing “Qe” and “Ln” for Designing an LLC Resonant Converter
This is the link to the video of this post. The first step in designing an LLC converter is selecting the quality factor (Qe) and…
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Calculating the Minimum Forward Current of the Diode on a Buck Converter
The figure above shows the diode current waveform at the steady state. The average value of this current waveform can be calculated as the area…
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Calculating the Minimum Drain Current of MOSFET on a Buck Converter
The average value of this current waveform can be calculated as the area during the ON of the MOSFET.The area below the waveform is equal…
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Calculating the Capacitor’s Value on a Buck Converter
In a buck converter cicuit, the output capacitor will determine the output ripple voltage. Having a big output capacitor at the output can lower the…
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Calculating the Inductor’s Value on a Buck Converter
On a buck converter circuit, the value of the inductor will determine the output ripple current. One way to determine this value is by calculating…
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PCB Layout of a Buck Converter
The picture above is the 3D model of a synchronous buck converter I designed. There are some considerations on this PCB layout to make a…