Invention Grant
- Patent Title: Controlling a bidirectional DC-to-DC converter
- Patent Title (中): 控制双向DC-DC转换器
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Application No.: US13195423Application Date: 2011-08-01
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Publication No.: US08723490B2Publication Date: 2014-05-13
- Inventor: Zaki Moussaoui , Jifeng Qin , Joseph Buxton
- Applicant: Zaki Moussaoui , Jifeng Qin , Joseph Buxton
- Applicant Address: US CA Milpitas
- Assignee: intersil Americas Inc.
- Current Assignee: intersil Americas Inc.
- Current Assignee Address: US CA Milpitas
- Agency: Fogg & Powers LLC
- Main IPC: G05F1/00
- IPC: G05F1/00

Abstract:
A system and method for regulating power flow and limiting inductor current in a bidirectional direct current (DC)-to-DC converter is provided. In one aspect, a feedback circuit is provided to control power flow and/or limit inductor current based on the input/output voltage and/or current conditions in the bidirectional DC-DC converter. During a boost mode of operation, the duty cycle of a low-side switch within the bidirectional DC-DC converter is reduced, based on an analysis of the high-side voltage and positive inductor current. Further, during a buck mode of operation, the duty cycle of the low-side switch is increased, based on an analysis of the low-side voltage and negative inductor current. Moreover, the duty cycle of the low-side switch is adjusted, such that, the high-side voltage, low-side voltage and inductor current (in both directions) do not exceed preset threshold and the bidirectional DC-DC converter returns to a steady state.
Public/Granted literature
- US20120049772A1 CONTROLLING A BIDIRECTIONAL DC-TO-DC CONVERTER Public/Granted day:2012-03-01
Information query
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