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公开(公告)号：US10890608B2
公开(公告)日：2021-01-12
申请号：US16316130
申请日：2016-07-08
摘要： A system and method to determine a capacitance of a capacitor. In one embodiment, a power converter includes a controller coupled to an output capacitor and a power train configured to convert an input voltage to a nominal output voltage. The controller is configured to ramp up an output voltage of the power converter with a first slope and a second slope, and receive a first output current of the power converter during a first rise time associated with the first slope and a second output current of the power converter during a second rise time associated with the second slope. The controller is also configured to compute a capacitance of the output capacitor employing the first and second output currents, the first and second rise times, and the nominal output voltage.
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2.发明授权公开(公告)号：US09847729B2
公开(公告)日：2017-12-19
申请号：US14895342
申请日：2015-01-21
CPC分类号： H02M3/33546 , H02M1/14 , H02M3/337 , H02M2001/0045
摘要： A method of operating a switched mode power supply comprising a switched mode converter and a control arrangement. The switched mode converter converts an input voltage to an output voltage and includes a primary winding, controllable switch based circuitry connecting the input voltage over the primary winding, a secondary winding coupled to the primary winding, and an LC filter including an inductive element and a capacitive element, wherein the output voltage is obtained as the voltage over the capacitive element and a duty cycle of the switched mode converter can be controlled by controlling the switch based circuitry. The switched mode converter is controlled depending on measurements of the input and output voltages in a hybrid regulated ratio control scheme. The power of the switched mode power supply is shut off or a current thereof is limited, when a current of the switched mode power supply reaches a maximum current.
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3.发明申请SWITCHED MODE POWER SUPPLY AND METHOD OF OPERATING A SWITCHED MODE POWER SUPPLY 审中-公开开关电源和操作开关电源的方法公开(公告)号：US20160261193A1
公开(公告)日：2016-09-08
申请号：US14432149
申请日：2014-06-18
发明人： Magnus Karlsson , Oscar Persson , Fredrik Wahledow
CPC分类号： H02M3/33507 , H02M1/08 , H02M3/33569 , H02M3/337 , H02M2001/0022
摘要： A switched mode power supply comprises a switched mode converter and a controller for controlling the switched mode converter, wherein the switched mode converter is provided for converting an input voltage to an output voltage and includes, on a primary side, a primary winding and a controllable switch based circuitry connecting the input voltage over the primary winding; and, on a secondary side, a secondary winding coupled to the primary winding, and a capacitive element connected over the secondary winding, wherein the output voltage is obtained as the voltage over the capacitive element. The primary winding comprises a first winding portion and at least one further winding portion. The switch based circuitry comprises controllable switches capable of switching between a first operation state wherein the input voltage is connected only over the first winding portion and at least a second operation state wherein the input voltage is connected over the first and the at least one further winding portions, thereby enabling switching between two different transformer ratios.
摘要翻译： 开关模式电源包括开关模式转换器和用于控制开关模式转换器的控制器，其中提供开关模式转换器用于将输入电压转换为输出电压，并且在初级侧包括初级绕组和可控制的 基于开关的电路连接初级绕组上的输入电压; 并且在次级侧，耦合到初级绕组的次级绕组和连接在次级绕组上的电容元件，其中输出电压被获得作为电容元件上的电压。 初级绕组包括第一绕组部分和至少一个另外的绕组部分。 基于开关的电路包括能够在第一操作状态（其中输入电压仅连接在第一绕组部分上）和至少第二操作状态之间切换的可控开关，其中输入电压连接在第一和至少一个另外的绕组 从而能够在两个不同的变压器比之间进行切换。
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公开(公告)号：US20190317141A1
公开(公告)日：2019-10-17
申请号：US16316130
申请日：2016-07-08
摘要： A system and method to determine a capacitance of a capacitor. In one embodiment, a power converter includes a controller coupled to an output capacitor and a power train configured to convert an input voltage to a nominal output voltage. The controller is configured to ramp up an output voltage of the power converter with a first slope and a second slope, and receive a first output current of the power converter during a first rise time associated with the first slope and a second output current of the power converter during a second rise time associated with the second slope. The controller is also configured to compute a capacitance of the output capacitor employing the first and second output currents, the first and second rise times, and the nominal output voltage.
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5.发明授权公开(公告)号：US09680387B2
公开(公告)日：2017-06-13
申请号：US14768425
申请日：2014-11-17
发明人： Magnus Karlsson , Oscar Persson , Fredrik Wahledow
CPC分类号： H02M3/33592 , H02M3/335 , H02M3/33523 , H02M3/33553 , H02M2001/0022
摘要： A switched mode power supply comprising a switched mode converter and a controller for controlling the switched mode converter, the switched mode converter being provided for converting an input voltage to an output voltage and including, on a primary side, a primary winding and a controllable switch based circuitry connecting the input voltage over the primary winding; and, on a secondary side, a secondary winding coupled to the primary winding and a capacitive element connected over the secondary winding, wherein the output voltage is obtained as the voltage over the capacitive element. The primary winding comprises a first winding portion and at least one further winding portion and the switch based circuitry comprises controllable switches capable of controlling the duty cycle of the switched mode converter and capable of switching between a first operation state wherein the input voltage is connected only over the first winding portion and at least a second operation state wherein the input voltage is connected over the first and the at least one further winding portions, thereby enabling switching between two different transformer ratios. The controller comprises a first control arrangement connected to monitor the output voltage of the switched mode converter and operatively connected to the controllable switches to control the controllable switches to switch to thereby control the duty cycle in response to the monitored output voltage and a reference voltage using PID feedback control. The controller further comprises a second control arrangement connected to monitor the input voltage of the switched mode converter and operatively connected to the controllable switches to control the controllable switches to switch between the first and the at least second operation states in response to the monitored input voltage.
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公开(公告)号：US09525347B2
公开(公告)日：2016-12-20
申请号：US14366632
申请日：2013-06-12
CPC分类号： H02M3/158 , H02M3/157 , H02M2001/0006 , H02M2001/008
摘要： A voltage converter (200) is disclosed, which comprises a controller (210) operable in: a first mode to control the voltage converter so as to convert an input voltage (Vin) at an input (230) of the voltage converter to an output voltage (Vout) at an output (240) of the voltage converter; and a second mode, in which the controller (210) is configurable by configuration control signals (270) so as to change the control applied by the controller to the voltage converter. The voltage converter (200) also includes a power module (280) arranged to derive and supply an operation voltage (Voperation) to the controller (210), the power module (280) being arranged to derive the operation voltage from the input voltage (Vin) during operation of the controller (210) in the first mode, and a voltage source (340) other than the input voltage (Vin) during operation of the controller (210) in the second mode. There is also described herein a power supply system comprising one or more such voltage converters, and a method of configuring the power supply system.
摘要翻译： 公开了一种电压转换器（200），其包括控制器（210），其可操作于：第一模式以控制所述电压转换器，以便将所述电压转换器的输入端（230）的输入电压（Vin）转换为输出 电压转换器的输出（240）的电压（Vout）; 以及第二模式，其中控制器（210）可由配置控制信号（270）配置，以便将由控制器施加的控制改变为电压转换器。 电压转换器（200）还包括功率模块（280），其被配置为向控制器（210）导出并提供操作电压（V operation），功率模块（280）被布置成从输入电压（ Vin），以及在第二模式下在控制器（210）的操作期间除了输入电压（Vin）之外的电压源（340）。 这里还描述了包括一个或多个这样的电压转换器的电源系统以及配置电源系统的方法。
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公开(公告)号：US20150340949A1
公开(公告)日：2015-11-26
申请号：US14366632
申请日：2013-06-12
IPC分类号： H02M3/158
CPC分类号： H02M3/158 , H02M3/157 , H02M2001/0006 , H02M2001/008
摘要： A voltage converter (200) is disclosed, which comprises a controller (210) operable in: a first mode to control the voltage converter so as to convert an input voltage (Vin) at an input (230) of the voltage converter to an output voltage (Vout) at an output (240) of the voltage converter; and a second mode, in which the controller (210) is configurable by configuration control signals (270) so as to change the control applied by the controller to the voltage converter. The voltage converter (200) also includes a power module (280) arranged to derive and supply an operation voltage (Voperation) to the controller (210), the power module (280) being arranged to derive the operation voltage from the input voltage (Vin) during operation of the controller (210) in the first mode, and a voltage source (340) other than the input voltage (Vin) during operation of the controller (210) in the second mode. There is also described herein a power supply system comprising one or more such voltage converters, and a method of configuring the power supply system.
摘要翻译： 公开了一种电压转换器（200），其包括控制器（210），其可操作于：第一模式以控制所述电压转换器，以便将所述电压转换器的输入端（230）的输入电压（Vin）转换为输出 电压转换器的输出（240）的电压（Vout）; 以及第二模式，其中控制器（210）可由配置控制信号（270）配置，以便将由控制器施加的控制改变为电压转换器。 电压转换器（200）还包括功率模块（280），其被配置为向控制器（210）导出并提供操作电压（V operation），功率模块（280）被布置成从输入电压（ Vin），以及在第二模式下在控制器（210）的操作期间除了输入电压（Vin）之外的电压源（340）。 这里还描述了包括一个或多个这样的电压转换器的电源系统以及配置电源系统的方法。
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