Abstract
Abstract
A novel bi-directional dc-dc converter with Zero
Voltage Switching (ZVS) and interleaving for dual
voltage systems in automobiles is presented. A variable
frequency extended band hysteretic current control
method is proposed. In comparison with classical fixed
frequency current control PWM, the reverse polarity peak
current needed for ZVS operation is kept constant.
Inductor current ripple decreases with load reduction.
Automatic changes in operation between buck and boost
modes are accomplished without transient currents.
Converter simulations are carried out using
Matlab/Simulink platform.