What is LLC resonant converter?
What is LLC resonant converter?
The LLC converter is a resonant inverter with three reactive elements where the DC input voltage is turned into a square wave by a switch…
What is the meaning of synchronous rectification?
Active rectification, or synchronous rectification, is a technique for improving the efficiency of rectification by replacing diodes with actively controlled switches, usually power MOSFETs or power bipolar junction transistors (BJT).
What is synchronous rectifier controller?
Texas Instruments UCC24630 Synchronous Rectifier Controller is a high-performance controller and driver for N-channel MOSFET power devices used for secondary-side synchronous rectification (SR). This solution directly reduces power dissipation of the rectifier.
How do LLC converters work?
A regular LLC resonant half bridge converter works a combination mode of a voltage divider and amplifier of resonant inductor voltage of the resonant tank. At the resonant frequency, impedance of resonant tank is zero, which means the input voltage is 100% applied on the load.
How does a resonant converter work?
The resonant link circuit is driven with either square waves of voltage or current in the inverter. By rectifying the voltage across the inductor or capacitor, a DC voltage is obtained. The DC voltage can either be increased or decreased. Thus this converter be operated as step-up or step-down converter.
What is IGBT rectifier?
IGBT stands for Insulated Gate Bipolar Transistor. It is a three terminal electronic device that is used as a switch. The main advantage of the IGBT Rectifier is the fact it produces a sinusoidal input current with low harmonics at the input with unity Power Factor through most of the load range.
How does a diode work?
A diode is a semiconductor device that essentially acts as a one-way switch for current. It allows current to flow easily in one direction, but severely restricts current from flowing in the opposite direction.
What is rectifier controller?
Dynapower’s Multi-Unit Rectifier Controller allows users to save time with the automation of recipes, fault diagnostics, and data logging of multiple rectifiers from a single touchscreen. …
What is SR controller?
The Senior Controller oversees the activities of the junior Controller, ensuring proper execution of his functions. The Senior Controller is involved in all aspects of financial management, inclusive of corporate accounting, budget and forecast preparation, internal regulation, and financial reporting.
Why do we use resonant converter?
Circulating current in a resonant converter is used to charge or discharge the parasitic capacitors of the switching elements (e.g. MOSFET) during the switching dead-time, a period that all the switches are turned off.
What are the advantages of resonant converter?
Abstract: Owing to the advantages of high efficiency, high energy density, electrical isolation, low electromagnetic interference (EMI) and harmonic pollution, magnetic integration, wide output ranges, low voltage stress, and high operation frequency, the LLC resonant converters are widely used in various sectors of …
What is the need of resonant converter?
