- Patent Title: Multi-level power factor correction circuit using hybrid devices
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Application No.: US16007325Application Date: 2018-06-13
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Publication No.: US10361626B2Publication Date: 2019-07-23
- Inventor: Dianbo Fu , Xiaolin Mao , Heping Dai
- Applicant: Futurewei Technologies, Inc.
- Applicant Address: US TX Plano
- Assignee: Futurewei Technologies, Inc.
- Current Assignee: Futurewei Technologies, Inc.
- Current Assignee Address: US TX Plano
- Agency: Vierra Magen Marcus LLP
- Main IPC: H02M7/219
- IPC: H02M7/219 ; H02M1/42 ; H02M7/483 ; H02M7/487 ; H02M7/06 ; H02M1/00

Abstract:
AC to DC converters, more specifically Power Factor Correction (PFC) circuits, using a multi-level waveform and hybrid devices are presented. From an AC voltage input a multi-level waveform is generated, which is used to generate high and low DC output voltage levels. The multi-level waveform is connected to the DC outputs through a corresponding intermediate node by an initial switch, and from the intermediate node to the corresponding output by a hybrid device. The hybrid device includes a first current path, such as a series connected switch-diode pair, in parallel with second current path of a relatively faster and lower current device, such as a diode. The resultant arrangement can use devices having lower voltage ratings relative to typical PFC circuit designs.
Public/Granted literature
- US20190020271A1 MULTI-LEVEL POWER FACTOR CORRECTION CIRCUIT USING HYBRID DEVICES Public/Granted day:2019-01-17
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