TY  - CHAP
A1  - Himmelstoss, Felix
A1  - Votzi, Helmut
T1  - Two-Stage Step-up Converter with Different Voltage Transformation Ratios depending on the Duty Cycle
T2  - 20th International Conference on Renewable Energies and Power Quality (ICREPQ’22) Vigo (Spain), 27th to 29th July 2022
N2  - A two-stage converter with high output voltage
ratio and reduced current stress of the inductors and partly
reduced voltage stress is discussed. The function is explained
with the help of voltage and current diagrams. The voltage
transformation ratio changes between a quadratic step-up for
duty cycles lower 0.5 and a double Boost converter for duty
cycles higher than 0.5. Dimensioning hints, the control law for
feed-forward controls, the transient when the supply is turned on
is discussed and some simulations are given. A comparison to
other two-stage converters is also treated.
KW  - Quadratic boost
KW  - double boost converter
KW  - feed-forward control
KW  - start-up
Y1  - 
U6  - http://dx.doi.org/10.24084/repqj20.218
VL  - Vol. 20
SP  - 66
ER  -