Author: Vijay
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Transformer Design Flow Chart
Trabsformer design procedure is an important to follow for calculating number of turns on primary and secondary side along with leakage inductance values with a proper isolation. These steps depends mainly on 3 things The complete design steps and flow shown in below flowchart for better understanding.
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Diode Vs SR MOSFET
The replacement of a diode in a power electronic converters with a MOSFET is called synchronous rectification (SR) and that particular switch is called SR MOSFET. Basically, this helps in increasing the overall efficiency by reducing the conduction losses in circuit. Uses: Reduce the conduction losses —> Converter efficiency increases Let’s explore practically where it…
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DC-DC Converters: Why Resonant Converters? How these are benficial than PWM Converters?
DC-DC converter: The converters which takes DC and it steps-up or steps-down that DC value in same form. If it steps-up the input voltage is called step-up DC-DC converter. If it steps-down the input voltage is called step-down DC-DC converter. The power generation of renwable energy sources like solar are vary in nature due to…
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Phase-shift full-bridge (PSFB) Resonant Converter with Current Doubler: Circuit & Operation
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Overview of operating modes in PSFB Resonant Converter Operation
The PSFB resonant converter full-cycle operation divided into 10 operating modes: (t0 – Ts). All modes in this cycle are divided into mainly 4 modes At any period of time in the operation belongs to above any one of mode. Power Transfer Mode In this mode, only diagonal active switch pair conduct (S1, S2) or…
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Resonant Inductor
Resonant inductor selection is depends on many crucial factors {Power transfer capability, Dead time, ZVS }= function (Resonant inductor) Power Transfer Capability The power transfer capability of a converter is depends on the how much time the active switches are turned-on to deliver the energy to load. The mode (t4 – t7) in PSFB converter operation have the…
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Inductor Associated Losses & it’s Equations
The losses related to an inductor can be categorized into two types. One type is entirely dependent on the properties of the core material, while the other type relies solely on the characteristics of the conductor and current flowing through it. Copper losses When a magnetic bar is inserted into an current carries conductor and…
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Window Area Calculations
Two different areas are involved in any core shape These two areas multiplication only area product (AP = AE. AW) which is important and used in inductor design steps. After selecting the core in magnetics design, we look for core areas in core data sheet for calculating the area product. The core cross-sectional area (Ae)…
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Inductor Design Equations Derivation
The main equations used in inductor design steps are derived below. These are Area Product (AP) Area product of any magnetic core involves in the cross-sectional area and window areas of core Area product, AP = AE . AW Lets derive one by one. There are two law’s are involved in this process Cross-sectional area…
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Inductor Design Flow Chart
Inductor design procedure is an important to follow for getting the targeted inductance value with a proper functioning and decent efficiency. These steps depends mainly on 3 things The complete design steps and flow shown in below flowchart for better understanding. The derivation of area product equation and number of turns equation clearly explained in…
