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This study presents a sensorless static model based with output current estimation method for digital PWM control dc-dc converters. The static model is a feedforward type control method adopted in coordination with the standard PID control and it can improve characteristics of wide input and output range of dc-dc converter by using information of output current. The one of the drawbacks of the static...
Recently, the energy saving is required. It is necessary for the energy saving to operate the electric device in the sleep mode. Therefore, the output voltage rises abnormally because the dc-dc converter is required the operation in the discontinuous current mode. Therefore, we have proposed the model control using static model and strived for improvements. In the proposed method, the output voltage...
A parallel power conversion based fast battery charger topology for electric vehicles is presented in this study. The proposed topology has high system efficiency as well as reduced converter size. The proposed topology also provides wider range of duty ratio compared to conventional topologies. The enhancements of the proposed topology are evaluated and the results are demonstrated through an example...
This paper investigates a power supply of medium voltage with enhanced ignition characteristics for plasma torch in waste disposal system. Series resonant half-bridge topology is presented to be a suitable ignition circuitry. The ignition circuitry is integrated into the main power conversion system of a multi-phase staggered three-level dc-dc converter with a diode front-end rectifier. The plasma...
A SEPIC (single-ended primary inductor converter) DC-DC converter is capable of operating in either step-up or step-down mode and widely used in battery-operated equipment. There are two possible modes of operation in the SEPIC converter: continuous conduction mode (CCM) and discontinuous conduction mode (DCM). This paper presents modeling of a SEPIC converter operating in DCM using the state-space...
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