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1. 发明申请

US20120049820A1 SOFT START METHOD AND APPARATUS FOR A BIDIRECTIONAL DC TO DC CONVERTER 审中-公开
标题翻译：双向DC-DC转换器的软启动方法和装置
公开(公告)号：US20120049820A1
公开(公告)日：2012-03-01
申请号：US13094007
申请日：2011-04-26
申请人： Zaki Moussaoui , Jifeng Qin , Joseph Buxton
发明人： Zaki Moussaoui , Jifeng Qin , Joseph Buxton
IPC分类号： G05F1/618
CPC分类号： H02M1/36 , H02M3/1582
摘要： A system and method for reducing negative inductor current during soft start of a bidirectional direct current (DC)-to-DC converter is provided. Typically, the bidirectional DC-to-DC converter includes an active switch and a passive switch. The system employs a soft start circuit that controls the duty cycle of the passive switch during soft start of the active switch. In one aspect, the soft start circuit gradually increases the duty cycle of the passive switch from zero to a steady state value, and provides a soft start for the passive switch concurrently/simultaneously during the soft start of the active switch. Moreover, the soft start circuit disclosed herein can avoid the reverse transient inductor current during start-up, prevent system damage and make the design of the bidirectional DC-to-DC converter more robust.
摘要翻译：提供了一种用于在双向直流（DC）至DC转换器的软启动期间减小负电感电流的系统和方法。通常，双向DC-DC转换器包括有源开关和无源开关。该系统采用软起动电路，在有源开关的软启动期间控制无源开关的占空比。在一个方面，软启动电路逐渐将无源开关的占空比从零增加到稳态值，并且在有源开关的软启动期间同时/同时提供无源开关的软启动。此外，本文公开的软启动电路可以避免启动期间的反向瞬态电感器电流，防止系统损坏并且使双向DC-DC转换器的设计更加坚固。

2. 发明授权

US08723490B2 Controlling a bidirectional DC-to-DC converter 有权
标题翻译：控制双向DC-DC转换器
公开(公告)号：US08723490B2
公开(公告)日：2014-05-13
申请号：US13195423
申请日：2011-08-01
申请人： Zaki Moussaoui , Jifeng Qin , Joseph Buxton
发明人： Zaki Moussaoui , Jifeng Qin , Joseph Buxton
IPC分类号： G05F1/00
CPC分类号： H02M3/1588 , H02M2001/0003 , Y02B70/1466
摘要： 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.
摘要翻译：提供了一种用于调节双向直流（DC）至DC转换器中的电流和限制电感电流的系统和方法。在一个方面，提供反馈电路以基于双向DC-DC转换器中的输入/输出电压和/或电流条件来控制功率流和/或限制电感器电流。在升压工作模式下，基于对高侧电压和正电感电流的分析，降低了双向DC-DC转换器内的低侧开关的占空比。此外，在降压操作模式下，基于低侧电压和负电感器电流的分析，低侧开关的占空比增加。此外，调节低侧开关的占空比，使得高侧电压，低侧电压和电感器电流（两个方向）不超过预设阈值，并且双向DC-DC转换器返回到稳定状态。

3. 发明申请

US20120049772A1 CONTROLLING A BIDIRECTIONAL DC-TO-DC CONVERTER 有权
标题翻译：控制双向DC-DC转换器
公开(公告)号：US20120049772A1
公开(公告)日：2012-03-01
申请号：US13195423
申请日：2011-08-01
申请人： Zaki Moussaoui , Jifeng Qin , Joseph Buxton
发明人： Zaki Moussaoui , Jifeng Qin , Joseph Buxton
IPC分类号： H02P3/14 , G05F1/10
CPC分类号： H02M3/1588 , H02M2001/0003 , Y02B70/1466
摘要： 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.
摘要翻译：提供了一种用于调节双向直流（DC）至DC转换器中的电流和限制电感电流的系统和方法。在一个方面，提供反馈电路以基于双向DC-DC转换器中的输入/输出电压和/或电流条件来控制功率流和/或限制电感器电流。在升压工作模式下，基于对高侧电压和正电感电流的分析，降低了双向DC-DC转换器内的低侧开关的占空比。此外，在降压操作模式下，基于低侧电压和负电感器电流的分析，低侧开关的占空比增加。此外，调节低侧开关的占空比，使得高侧电压，低侧电压和电感器电流（两个方向）不超过预设阈值，并且双向DC-DC转换器返回到稳定状态。

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