Open AccessDesign of Adjustable Switching Power Supply with Current Type Single-Ended Flyback Output
Author(s) -
Chia-Wei Huang,
Jun-Yu Du,
Wei-Tai Hsu
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/644/1/012012
Subject(s) - flyback transformer , switched mode power supply , flyback converter , ripple , flyback diode , constant power circuit , power supply rejection ratio , voltage , power factor , voltage regulation , electrical engineering , control theory (sociology) , computer science , engineering , boost converter , control (management) , artificial intelligence , transformer
This study is based on the UC3845 controller, designed a flyback switching power supply, which has a wide input voltage range, high output voltage accuracy, and high load regulation. According to the characteristics of flyback switching power supply and UC3845, adding filter circuit, a feedback circuit, protection circuit, etc., develop a single-ended flyback switching power supply with adjustable output, stable and reliable, and high efficiency. According to the simulation results, it can be seen that the designed switching power supply has high output voltage accuracy, and the input voltage in the range of 200V∼240V, the accuracy of the output voltage is kept within 1.3%; the voltage adjustment is less than 1%, The output ripple factor is kept below 0.09%, and the output voltage is adjustable.