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This paper presents a high pulsed electric field generator for microbial inhibition of liquid food in continuous treatment applications. The proposed pulsed electric field generator adopts forward/flyback hybrid converters to achieve a bidirectional narrow pulse voltage output. With this circuit structure, the proposed one can reduce voltage stresses of output diodes and switches in secondary winding...
This paper presents a narrow pulsed voltage generator along with an ultrasound generator for liquid food sterilization. The generator is derived from a bidirectional flyback converter with leakage energy recovery circuits, which can improve efficiency about 12%. In addition, the proposed generator is associated with a half-bridge inverter for generating ultrasound to clean sterilizer electrodes. In...
The paper proposes an active clamp interleaved flyback converter with a single-capacitor turn-off snubber associated with a full-bridge inverter for stunning poultry applications. The proposed converter can use active clamp circuit to recover the energy of transformer and to achieve zero-voltage switching at turn-on transition. In addition, the proposed one adopts a single-capacitor snubber not only...
This paper presents a high step-up converter associated with a full-bridge inverter for livestock stunning applications. The proposed converter adopts a two stage converter and uses partial energy processing to reduce voltage stress and switching loss and then, its switches are operated in a complementary manner to reduce component counts and circuit structure complexity. To further improve its conversion...
This paper presents an intelligent poultry stunner for improving carcass quality and animal welfare. In the stunner system, an active clamp circuit is used in a forward converter to reset the magnetizing energy and to recover leakage energy trapped in the transformer, increasing its conversion efficiency. In addition, a dither generator realized with a half-bridge inverter is adopted to fast breakdown...
This paper presents an intelligent poultry stunner for improving carcass quality and animal welfare. In the stunner system, an active clamp circuit is used in a forward converter to reset the magnetizing energy and to recover leakage energy trapped in the transformer, increasing its conversion efficiency. In addition, a dither generator realized with a half-bridge inverter is adopted to fast breakdown...
This paper presents a high step-up converter associated with a full-bridge inverter for livestock stunning applications. The proposed converter adopts a two stage converter and uses partial energy processing to reduce voltage stress and switching loss and then, its switches are operated in a complementary manner to reduce component counts and circuit structure complexity. To further improve its conversion...
This paper proposes an interleaving forward converters with single-capacitor turn-off snubber associated with a full-bridge inverter for poultry stunning applications. The proposed converters can use the single-capacitor snubber to smooth out switch turn-off transient for reducing turn-off loss. As compared with the counterparts of the conventional converter topologies, the proposed converters have...
This paper proposes a wide pulse combined with narrow pulse generator for solid food sterilization. The proposed generator is composed of a full-bridge converter in phase-shift control to generate high dc-link voltage, and a full-bridge inverter associated with an L-C network and a transformer to generate wide pulses combined with narrow pulses. These combined pulses can prevent undesired strong air...
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