Extensions of Leading-Edge Modulated One-Cycle Control for Totem-Pole Bridgeless Rectifiers
Totem-Pole Bridgeless Rectifier (TPBR) is a promising power circuit topology for power factor correction, but low-cost input current sensing is a challenge in this topology that needs to be solved for its adoption in cost-sensitive applications. This article presents two new extensions to leading-ed...
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Veröffentlicht in: | IEEE transactions on power electronics 2020-05, Vol.35 (5), p.5447-5460 |
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description | Totem-Pole Bridgeless Rectifier (TPBR) is a promising power circuit topology for power factor correction, but low-cost input current sensing is a challenge in this topology that needs to be solved for its adoption in cost-sensitive applications. This article presents two new extensions to leading-edge modulated one-cycle control (LEM-OCC) that can achieve stable control of the TPBR using a shunt resistor connected to the low side of the output voltage for current sensing. Besides that, the proposed extensions also improves the performance of LEM-OCC, where one of them shows a reduction of 60% of the input current total harmonic distortion (THD) at light load and high input voltage, while the other shows a reduction of 45% of the input current THD. The higher performance extension requires a digital controller, but the second extension can be implemented with analog circuits. A 300-W prototype is used to validate the control equations and stability analysis. |
doi_str_mv | 10.1109/TPEL.2019.2946570 |
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This article presents two new extensions to leading-edge modulated one-cycle control (LEM-OCC) that can achieve stable control of the TPBR using a shunt resistor connected to the low side of the output voltage for current sensing. Besides that, the proposed extensions also improves the performance of LEM-OCC, where one of them shows a reduction of 60% of the input current total harmonic distortion (THD) at light load and high input voltage, while the other shows a reduction of 45% of the input current THD. The higher performance extension requires a digital controller, but the second extension can be implemented with analog circuits. 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subjects | AC–DC power converters Analog circuits Circuit stability Circuits Control stability Control systems current control Distortion Electric potential Engineering Engineering, Electrical & Electronic Harmonic distortion Inverters one-cycle control (OCC) Performance enhancement Power factor power factor correction (PFC) Rectifiers Reduction Science & Technology Sensors Stability analysis Technology Topology Voltage Voltage control |
title | Extensions of Leading-Edge Modulated One-Cycle Control for Totem-Pole Bridgeless Rectifiers |
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