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In this paper, a current-fed asymmetric full-bridge LLCC resonant converter is proposed for the dielectric barrier discharge (DBD) applied to the surface treatment. Compared with a previous design, the asymmetric structure with no front-end buck circuit and only two reverse-voltage blocking diodes is adopted to reduce the component count and circuit complexity. Moreover, the phase-shift control of...
In dielectric barrier corona discharge (DBCD) used in material surface treatment, how to obtain a constant peak applied electrode voltage when regulating the power is an important issue as the voltage considerably influences the discharge stability and characteristics. In this study discontinuous current mode (DCM) is used in DBCD for surface treatment. The peak applied electrode voltage is constant...
An efficient and easily-realized semi-mathematical model of co-pack IGBT is proposed, based on existing built-in models for circuit simulator. With clamped inductive load there is strong interaction between the IGBT and the internal anti-parallel freewheeling diode (FWD) in the co-packed totem pole modules. This model provides a user-friendly co-pack IGBT model in which IGBT and its FWD are modeled...
The full-bridge series-parallel resonant converters (also known as LCC resonant converters) with capacitive output filter is evaluated in high output voltage (>50 kV), high power (>50 kW) and high frequency (20 kHz) ESP (Electrostatic Precipitator) power supply applications. By using the leakage inductance and the winding capacitance of the transformer as the resonant elements only an additional...
The design of a high voltage, high power and high frequency transformer is introduced considering its operation in the LCC resonant converter. The leakage inductance and winding capacitance of the transformer are used as the resonant elements. An additional series resonant capacitor is added to form the LCC topology. The discontinuous current mode (DCM) is adopted to achieve the ZCS turn-on and ZVZCS...
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