Proposal of a switch-mode power supply by the association of an interleaved boost-flyback converter and an interleaved forward topology

2005 ◽  
Author(s):  
C.A. Gallo ◽  
M.T. Galelh ◽  
E.A.A. Coelho ◽  
L.C. Freitas ◽  
J.B. Vieira ◽  
...  
Keyword(s):  
Power Supply ◽  
Switch Mode Power Supply ◽  
Flyback Converter ◽  
Switch Mode

scholarly journals Comparision of Voltage Stress Across the MOSFET Switch of a Flyback Converter with Various Snubbers

2020 ◽  
Vol 5 (6) ◽  
pp. 1567-1571
Author(s):  
Soumya . ◽  
A.N Nagashree ◽  
R.S Geetha
Keyword(s):  
High Voltage ◽  
Power Supply ◽  
Switch Mode Power Supply ◽  
Critical Part ◽  
Leakage Inductance ◽  
Flyback Converter ◽  
Voltage Stress ◽  
Switch Mode ◽  
Active Clamp ◽  
Output Capacitance

A Flyback converter is a simple switch-mode power supply that can be used to generate a DC output from either an AC or DC input. The converter switch is the most critical part of any converter. The voltage stress across the switch is a major issue as the high voltage spikes occur due to interaction between its output capacitance and the leakage inductance of the transformer. These spikes can be reduced with various snubbers like conventional tertiary winding, Resistor Capacitor and Diode(RCD) snubber, energy regenerative snubber and an active clamp snubber. This paper aims to analyze and compare the voltage stress across the MOSFET switch of Flyback converter with various snubber circuits.

scholarly journals Development of high frequency generator for bipolar electrosurgical unit

2018 ◽  
Vol 7 (2.29) ◽  
pp. 20 ◽  
Author(s):  
Ali Idham alzaidi ◽  
Azli Yahya ◽  
Tan Tian Swee ◽  
Norhalimah Idris
Keyword(s):  
Power Switching ◽  
Switch Mode Power Supply ◽  
X Ray ◽  
Flyback Converter ◽  
High Efficient ◽  
Switch Mode ◽  
Frequency Generator ◽  
Improved Performance ◽  
Electrosurgical Unit ◽  
High Frequency Generator

Power Electronics is widely used in bioscience and medical instruments such as Electrosurgical Units, MRI and X-ray. An advance development in switch mode power supply leads to a new design topology of DC to DC convertor for Electrosurgical Systems. The new designed system has a capacity to produce high efficient output power with high resonance, this improves the performance of the surgery operation. This paper reports a Buck-Boost topology DC to DC (Flyback) converter with high power switching. The simulation results show an improved performance when compared to the existing system. 

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