A Novel Variable Duty Cycle Control to Achieve Optimal Reduction of the Electrolytic Capacitor Ripple Current for DCM Boost PFC Converter
Kai Yao ; Xincheng Hu ; Wenbin Hu ; Weijie Tang ; Jianguo Lyu
DCM boost PFC
,
3rd harmonic current
,
electrolytic capacitor
,
ripple current
,
variable duty cycle
In PFC converter, an electrolytic capacitor (E-Cap) is usually used, which has the shortest lifetime. The mathematical relationship between the…
Analysis and Design of DCM SEPIC PFC with Adjustable Output Voltage
SEPIC
,
PFC
,
DCM
,
Coupled Inductor
,
Notch filter
,
PR controller
,
adjustable output voltage
A non-isolated hard switching DCM SEPIC PFC with adjustable output voltage is analyzed and designed. With PWM switching averaged model, DC-DC…
Analysis, Modeling and Design of a True Bridgeless Single Stage PFC with Galvanic Isolation
Simon Nigsch ; Slobodan Cuk ; Kurt Schenk
PFC
,
Single Stage
,
Bridgeless
,
Analysis
,
Control Design
,
Highest Efficiency
Power Factor Correction (PFC) has been established for a long time to fulfill the harmonic standards. To meet the demand for a compact,…
Design Improvements for Primary-Side-Regulated High-Power Flyback Converters in Continuous-Conduction-Mode
Bernard Keogh ; Billy Long ; Joe Leisten
Flyback
,
PSR
,
CCM
,
Primary Side Sensing
Primary-Side-Regulation (PSR) indirectly senses output voltage, to eliminate the secondary-side error amplifier and feedback opto-coupler "…
High-Power-Factor Quasi-Resonant Flyback Converters Draw Sinusoidal Input Current
Claudio Adragna ; Giovanni Gritti
Quasi-Resonant Flyback Converters
This paper presents a novel control methodology that enables high-power-factor quasi-resonant flyback converters with peak current mode…
