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Convertidores Alimentados por Corriente

Referencia técnica sobre Convertidores Alimentados por Corriente para el diseño, integración e implementación de sistemas de energía inalámbrica.

6 minArtículo 26/50Electrónica de Potencia

Current-Fed Converters — educational diagram — Fig.: Diagrama educativo de “Current-Fed Converters”.

Current-fed topologies place an inductor in series with the DC input so the bridge sees approximately constant current. For WPT, that can limit fault current during receiver short and provide a natural match to some resonant tank excitations.

Open-circuit or high-impedance receiver conditions produce high voltage at the inverter output — clamping and overvoltage protection are mandatory.

01Advantages

Inherent limit on shoot-through current during bridge faults.
Can simplify some series-resonant WPT architectures.
Useful when multiple receivers detune the tank unpredictably.

Current-Fed Converters — supporting diagram — Fig.: Ilustración de apoyo para “Current-Fed Converters”.

02Risks

Voltage spikes when coupling drops suddenly — AGV leaving dock mid-power. Input inductor saturation during asymmetric switching must be prevented. Control bandwidth differs from voltage-fed designs — retune power loops accordingly.

03Application fit

Specialized high-power docks with defined OV clamp strategy.
Research platforms — less common in standard AGV products than voltage-fed.
Pair with active clamp or SAED networks when literature topology demands it.