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公开(公告)号：US09401653B2
公开(公告)日：2016-07-26
申请号：US14477483
申请日：2014-09-04
申请人： Bose Corporation
CPC分类号： H02M3/33569 , H02M1/4208 , H02M3/337 , H02M2001/0032 , Y02B70/126 , Y02B70/16
摘要： Circuits and techniques for improving power converter efficiencies and controllability are disclosed. For example, a first converter stage includes a push-pull circuit topology and an isolating element including a magnetizing inductance for isolating a primary side of the first converter stage from a secondary side of the first converter stage. The magnetizing inductance may vary as a function of a current flowing in the primary side of the first converter stage. For example, the isolating element can be a transformer with a stepped gap core and have a varying magnetizing inductance profile.
摘要翻译： 公开了用于提高功率转换器效率和可控性的电路和技术。 例如，第一转换器级包括推挽电路拓扑结构和包括用于将第一转换器级的初级侧与第一转换器级的次级侧隔离的磁化电感的隔离元件。 磁化电感可以随着在第一转换器级的初级侧流动的电流而变化。 例如，隔离元件可以是具有台阶间隙芯的变压器，并具有变化的磁化电感分布。
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公开(公告)号：US20160181908A1
公开(公告)日：2016-06-23
申请号：US14576069
申请日：2014-12-18
申请人： Bose Corporation
发明人： Manoel Soares
CPC分类号： H02M1/36 , H02M1/4225 , H02M3/33507 , Y02B70/126
摘要： An example apparatus may include a power supply circuit comprising a first stage, the first stage comprising a current-fed topology and a transformer for isolating a primary side of the first stage from a secondary side of the first stage; a control module configured to provide control signals to one or more switches of the power supply circuit and to perform startup operations comprising: determining a peak line voltage value of an AC input voltage to the power supply circuit; initiating, when the power supply circuit is started, a hard-switching method; determining a center tap voltage of the transformer; stopping the hard-switching method, when the center tap voltage crosses a fraction of the peak line voltage value; and initiating, when the hard-switching method stops, a zero-voltage switching method with peak current mode control.
摘要翻译： 示例性装置可以包括电源电路，其包括第一级，第一级包括电流馈送拓扑和用于将第一级的初级侧与第一级的次级侧隔离的变压器; 控制模块，被配置为向所述电源电路的一个或多个开关提供控制信号，并且执行启动操作，包括：确定所述电源电路的AC输入电压的峰值电压值; 当电源电路启动时启动硬切换方式; 确定变压器的中心抽头电压; 当中心抽头电压跨越峰值电压值的一部分时，停止硬切换方式; 并且当硬切换方法停止时，启动具有峰值电流模式控制的零电压切换方法。
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公开(公告)号：US20160103155A1
公开(公告)日：2016-04-14
申请号：US14512194
申请日：2014-10-10
申请人： Bose Corporation
IPC分类号： G01R15/20
CPC分类号： G01R15/207 , G01R15/202 , G01R15/205 , H02M1/00 , H02M2001/0009
摘要： An example circuit may include an inductor; a low-frequency sensor connected to the inductor; a high-frequency sensor connected to the inductor; and an integrator connected to the low-frequency sensor and the high frequency sensor, comprising one or more resistive devices and one or more capacitive devices, wherein the integrator is characterized by a time constant that varies as a function of the inductance of the inductor. The inductor may, for example, be part of a switched-mode power supply or an amplifier.
摘要翻译： 示例电路可以包括电感器; 连接到电感器的低频传感器; 连接到电感器的高频传感器; 以及连接到所述低频传感器和所述高频传感器的积分器，包括一个或多个电阻器件和一个或多个电容器件，其中所述积分器的特征在于随着所述电感器的电感而变化的时间常数。 电感器可以例如是开关模式电源或放大器的一部分。
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公开(公告)号：US09590493B2
公开(公告)日：2017-03-07
申请号：US14576069
申请日：2014-12-18
申请人： Bose Corporation
发明人： Manoel Soares
CPC分类号： H02M1/36 , H02M1/4225 , H02M3/33507 , Y02B70/126
摘要： An example apparatus may include a power supply circuit comprising a first stage, the first stage comprising a current-fed topology and a transformer for isolating a primary side of the first stage from a secondary side of the first stage; a control module configured to provide control signals to one or more switches of the power supply circuit and to perform startup operations comprising: determining a peak line voltage value of an AC input voltage to the power supply circuit; initiating, when the power supply circuit is started, a hard-switching method; determining a center tap voltage of the transformer; stopping the hard-switching method, when the center tap voltage crosses a fraction of the peak line voltage value; and initiating, when the hard-switching method stops, a zero-voltage switching method with peak current mode control.
摘要翻译： 示例性装置可以包括电源电路，其包括第一级，第一级包括电流馈送拓扑和用于将第一级的初级侧与第一级的次级侧隔离的变压器; 控制模块，被配置为向所述电源电路的一个或多个开关提供控制信号，并且执行启动操作，包括：确定所述电源电路的AC输入电压的峰值电压值; 当电源电路启动时启动硬切换方式; 确定变压器的中心抽头电压; 当中心抽头电压跨越峰值电压值的一部分时，停止硬切换方式; 并且当硬切换方法停止时，启动具有峰值电流模式控制的零电压切换方法。
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公开(公告)号：US20160118897A1
公开(公告)日：2016-04-28
申请号：US14521089
申请日：2014-10-22
申请人： Bose Corporation
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , G01R19/04 , H02M1/12 , H02M1/14 , H02M1/4258 , H02M2001/0022 , Y02B70/126
摘要： An example method for controlling a circuit may include determining an input signal in a circuit, the input signal comprising distortion; determining a fundamental component of the input signal; determining an error of the input signal using the input signal and the fundamental component; determining a distortion metric using the error; and controlling the circuit as a function of the distortion metric.
摘要翻译： 用于控制电路的示例性方法可以包括确定电路中的输入信号，所述输入信号包括失真; 确定输入信号的基本分量; 使用所述输入信号和所述基波分量确定所述输入信号的误差; 使用该误差确定失真度量; 并且根据失真度量来控制电路。
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公开(公告)号：US20160072392A1
公开(公告)日：2016-03-10
申请号：US14477483
申请日：2014-09-04
申请人： Bose Corporation
CPC分类号： H02M3/33569 , H02M1/4208 , H02M3/337 , H02M2001/0032 , Y02B70/126 , Y02B70/16
摘要： Circuits and techniques for improving power converter efficiencies and controllability are disclosed. For example, a first converter stage includes a push-pull circuit topology and an isolating element including a magnetizing inductance for isolating a primary side of the first converter stage from a secondary side of the first converter stage. The magnetizing inductance may vary as a function of a current flowing in the primary side of the first converter stage. For example, the isolating element can be a transformer with a stepped gap core and have a varying magnetizing inductance profile.
摘要翻译： 公开了用于提高功率转换器效率和可控性的电路和技术。 例如，第一转换器级包括推挽电路拓扑结构和包括用于将第一转换器级的初级侧与第一转换器级的次级侧隔离的磁化电感的隔离元件。 磁化电感可以随着在第一转换器级的初级侧流动的电流而变化。 例如，隔离元件可以是具有台阶间隙芯的变压器，并具有变化的磁化电感分布。
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公开(公告)号：US09595872B2
公开(公告)日：2017-03-14
申请号：US14521089
申请日：2014-10-22
申请人： Bose Corporation
CPC分类号： H02M3/33507 , G01R19/04 , H02M1/12 , H02M1/14 , H02M1/4258 , H02M2001/0022 , Y02B70/126
摘要： An example method for controlling a circuit may include determining an input signal in a circuit, the input signal comprising distortion; determining a fundamental component of the input signal; determining an error of the input signal using the input signal and the fundamental component; determining a distortion metric using the error; and controlling the circuit as a function of the distortion metric.
摘要翻译： 用于控制电路的示例性方法可以包括确定电路中的输入信号，所述输入信号包括失真; 确定输入信号的基本分量; 使用所述输入信号和所述基波分量确定所述输入信号的误差; 使用该误差确定失真度量; 并且根据失真度量来控制电路。
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公开(公告)号：US09523719B2
公开(公告)日：2016-12-20
申请号：US14512194
申请日：2014-10-10
申请人： Bose Corporation
CPC分类号： G01R15/207 , G01R15/202 , G01R15/205 , H02M1/00 , H02M2001/0009
摘要： An example circuit may include an inductor; a low-frequency sensor connected to the inductor; a high-frequency sensor connected to the inductor; and an integrator connected to the low-frequency sensor and the high frequency sensor, comprising one or more resistive devices and one or more capacitive devices, wherein the integrator is characterized by a time constant that varies as a function of the inductance of the inductor. The inductor may, for example, be part of a switched-mode power supply or an amplifier.
摘要翻译： 示例电路可以包括电感器; 连接到电感器的低频传感器; 连接到电感器的高频传感器; 以及连接到所述低频传感器和所述高频传感器的积分器，包括一个或多个电阻器件和一个或多个电容器件，其中所述积分器的特征在于随着所述电感器的电感而变化的时间常数。 电感器可以例如是开关模式电源或放大器的一部分。
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