公开(公告)号：US09490719B2

公开(公告)日：2016-11-08

申请号：US14133129

申请日：2013-12-18

Applicant: Infineon Technologies AG

Inventor： Luca Scandola

IPC: H02M7/515 ,  H02M3/335 ,  H02M3/158 ,  H02M1/00

CPC classification number: H02M3/33569 ,  H02M3/158 ,  H02M3/1588 ,  H02M3/33592 ,  H02M2001/0058 ,  Y02B70/1466 ,  Y02B70/1475 ,  Y02B70/1491

Abstract: According to an embodiment, a power supply controller includes a first controller, a second controller, a transformation circuit, a switch signal generator. The first controller is configured to provide a first control parameter based on a first power supply measurement signal and the second controller is configured to provide a second control parameter based on a second power supply measurement signal. The transformation circuit is configured to provide a first switching control parameter dependent on both the first control parameter and the second control parameter, and to provide a second switching control parameter dependent on both the first control parameter and the second control parameter. The switch signal generator is configured to generate switching signals that depend on both the first switching control parameter and the second switching control parameter.

Abstract translation: 根据实施例，电源控制器包括第一控制器，第二控制器，变换电路，开关信号发生器。 第一控制器被配置为基于第一电源测量信号提供第一控制参数，并且第二控制器被配置为基于第二电源测量信号提供第二控制参数。 变换电路被配置为提供依赖于第一控制参数和第二控制参数的第一切换控制参数，并且提供依赖于第一控制参数和第二控制参数两者的第二切换控制参数。 开关信号发生器被配置为产生依赖于第一开关控制参数和第二开关控制参数的开关信号。

公开(公告)号：US20160322900A1

公开(公告)日：2016-11-03

申请号：US15136848

申请日：2016-04-22

Applicant: Chengdu Monolithic Power Systems Co., Ltd.

Inventor： Li Xu

IPC: H02M3/158 ,  H02M1/08

CPC classification number: H02M3/1588 ,  H02M2001/0009 ,  Y02B70/1466

Abstract: A zero current detection method used in a switching converter, wherein the switching converter has a first switch, a second switch with a body diode, and a tank element. The current flowing through the tank element increases when the first switch is on and the second switch is off, and decreases when the first switch is off and the second switch is on. The zero current detection method includes: adjusting an offset signal in accordance with the on-time of the body diode in the second switch; comparing the current flowing through the tank element with the offset signal; and turning off the second switch if the current flowing through the tank element is detected to be lower than the offset signal.

Abstract translation: 一种在开关转换器中使用的零电流检测方法，其中所述开关转换器具有第一开关，具有体二极管的第二开关和容器元件。 当第一开关接通并且第二开关断开时，流过储罐元件的电流增加，并且当第一开关关闭且第二开关接通时，电流减小。 零电流检测方法包括：根据第二开关中的体二极管的接通时间来调整偏移信号; 将流经储罐元件的电流与偏移信号进行比较; 并且如果检测到流经槽元件的电流低于偏移信号，则关闭第二开关。

公开(公告)号：US09484813B2

公开(公告)日：2016-11-01

申请号：US14592269

申请日：2015-01-08

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Ken Toshiyuki

IPC: G05F1/56 ,  H02M3/156 ,  H02M3/158 ,  H02M1/00

CPC classification number: H02M3/156 ,  H02M3/1588 ,  H02M2001/0032 ,  H02P2201/09 ,  Y02B70/1466 ,  Y02B70/16

Abstract: A boost converter includes an inductor configured to have one terminal connected with an input power source; a switching element configured to be connected between another terminal of the inductor and a reference potential terminal; a rectifier configured to be connected between the other terminal of the inductor and an output terminal; and a controller configured to boost a voltage of the input power source using the inductor by applying a duty drive to the switching element in a switching cycle so that a command value of a current to be flowing into the inductor is equivalent to an average value of a current flowing into the inductor during an off period during which the switching element is duty-off in the switching cycle, and to have the voltage output from the output terminal.

Abstract translation: 升压转换器包括被配置为具有与输入电源连接的一个端子的电感器; 开关元件，被配置为连接在所述电感器的另一个端子与参考电位端子之间; 整流器被配置为连接在电感器的另一个端子和输出端子之间; 以及控制器，其被配置为通过在开关周期中向所述开关元件施加占空比驱动来使用所述电感器来升压所述输入电源的电压，使得要流入所述电感器的电流的指令值等于 在开关元件在开关周期期间占空比的关闭期间流入电感器的电流，以及从输出端子输出的电压。

公开(公告)号：US09461463B2

公开(公告)日：2016-10-04

申请号：US14210151

申请日：2014-03-13

Applicant: Infineon Technologies Americas Corp.

Inventor： Michael A. Briere ,  Jason Zhang ,  Bo Yang

IPC: H02M3/158 ,  H02H7/12 ,  H02M1/32

CPC classification number: H02H7/1213 ,  H02M1/32 ,  H02M3/1588 ,  Y02B70/1466 ,  Y02B70/1483

Abstract: Disclosed is a buck converter for converting a high voltage at the input of the buck converter to a low voltage at the output of the buck converter. The buck converter includes a control circuitry configured to control a duty cycle of a control switch, the control switch being interposed between the input and the output of the buck converter. A synchronous switch is interposed between the output and ground. The control switch and the synchronous switch comprise depletion-mode III-nitride transistors. In one embodiment, at least one of the control switch and the synchronous switches comprises a depletion-mode GaN HEMT. The buck converter further includes protection circuitry configured to disable current conduction through the control switch while the control circuitry is not powered up.

Abstract translation: 公开了一种降压转换器，用于将降压转换器的输入处的高电压转换为降压转换器的输出处的低电压。 降压转换器包括配置成控制控制开关的占空比的控制电路，控制开关插入降压转换器的输入和输出之间。 同步开关插在输出和地之间。 控制开关和同步开关包括耗尽型III族氮化物晶体管。 在一个实施例中，控制开关和同步开关中的至少一个包括耗尽型GaN HEMT。 降压转换器还包括保护电路，其被配置为在控制电路未上电时禁止通过控制开关的电流传导。

公开(公告)号：US09444342B2

公开(公告)日：2016-09-13

申请号：US14516859

申请日：2014-10-17

Applicant: Dialog Semiconductor (UK) Limited

Inventor： Mark Childs

IPC: H02M3/158 ,  H02M3/155 ,  H02M3/156 ,  H02M1/00

CPC classification number: H02M3/158 ,  H02M3/155 ,  H02M3/156 ,  H02M3/1582 ,  H02M3/1588 ,  H02M2001/0032 ,  H02M2003/1566 ,  Y02B70/1466 ,  Y02B70/16

Abstract: A hysteretic mode control circuit within a DC-to-DC converter is configured for varying the current limit that controls the switching interval and duration of a power switching section of the DC-to-DC converter to permit the DC-to-DC converter to manage large changes in output current load of the DC-to-DC converter. The hysteretic mode control circuit has a positive and a negative current limit section that develop a first and a second reference signal for turning on and turning off the first and the second switching device. The first and second reference signals are compared to an output voltage of the power switching section to determine if the first switching device or the second switching device is to be turned on or turned off.

Abstract translation: 配置DC-DC转换器内的迟滞模式控制电路，用于改变控制DC-DC转换器的功率切换部分的切换间隔和持续时间的电流限制，以允许DC-DC转换器 管理DC-DC转换器的输出电流负载的巨大变化。 迟滞模式控制电路具有正和负极限部分，其形成用于接通和关断第一和第二开关装置的第一和第二参考信号。 将第一和第二参考信号与功率切换部分的输出电压进行比较，以确定第一开关器件或第二开关器件是否被接通或断开。

公开(公告)号：US20160261187A1

公开(公告)日：2016-09-08

申请号：US15016905

申请日：2016-02-05

Applicant: SILERGY SEMICONDUCTOR TECHNOLOGY (HANGZHOU) LTD.

Inventor： FUHUA DENG

IPC: H02M3/158 ,  H02M1/08

CPC classification number: H02M3/1588 ,  H02M2001/0009 ,  Y02B70/1466

Abstract: The present disclosure relates to a switching power converter, a control circuit and an integrated circuit therefor, and a constant-current control method. The control circuit samples a valley value of an electric current through a first power transistor in a power stage circuit and a peak value of an electric current through a second power transistor in the power stage circuit, and obtains parameters representing an output current in accordance with an average value of the valley value and peak value. Thus, the constant-current control can be performed by sampling the electric current through the first power transistor and the second power transistor. Moreover, the switching power converter simplifies a current feedback loop for outputting a constant current, and the integrated circuit has fewer pins.

Abstract translation: 本公开涉及开关电源转换器，控制电路及其集成电路以及恒流控制方法。 控制电路通过功率级电路中的第一功率晶体管和功率级电路中的第二功率晶体管的电流的峰值取样电流的谷值，并获得表示输出电流的参数 谷值和峰值的平均值。 因此，可以通过对通过第一功率晶体管和第二功率晶体管的电流进行采样来执行恒定电流控制。 此外，开关电源转换器简化用于输出恒定电流的电流反馈回路，并且集成电路具有较少的引脚。

公开(公告)号：US09414461B2

公开(公告)日：2016-08-09

申请号：US14446641

申请日：2014-07-30

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sung-Cheon Park

IPC: H05B33/08 ,  H02M3/158 ,  H02M1/00 ,  G09G3/32

CPC classification number: H05B33/0896 ,  G09G3/3233 ,  G09G2330/02 ,  H02M3/158 ,  H02M3/1588 ,  H02M2001/0054 ,  Y02B70/1466 ,  Y02B70/1491

Abstract: An organic light emitting display device includes a DC-DC converter to supply first and second voltages to one or more pixels. The DC-DC converter includes a first voltage supply to convert an input voltage to a first voltage and a second voltage supply to convert the input voltage to a second voltage. The first and second voltages are coupled to opposing ends of the one or more pixels. The first voltage supply includes a first inductor between a first input terminal and first node, a first transistor between the first node and a reference potential, a second transistor between the first node and first output terminal, a first diode between the first node and a second node, a second diode between the second node and first output terminal, and a first switch between the second node and first output terminal.

Abstract translation: 有机发光显示装置包括DC-DC转换器，用于向一个或多个像素提供第一和第二电压。 DC-DC转换器包括将输入电压转换为第一电压的第一电压电源和第二电压电源，以将输入电压转换为第二电压。 第一和第二电压耦合到一个或多个像素的相对端。 第一电压源包括在第一输入端和第一节点之间的第一电感器，第一节点和参考电位之间的第一晶体管，第一节点和第一输出端之间的第二晶体管，第一节点和第一节点之间的第一二极管 第二节点，第二节点和第一输出终端之间的第二二极管，以及第二节点和第一输出终端之间的第一开关。

公开(公告)号：US09407146B2

公开(公告)日：2016-08-02

申请号：US14833198

申请日：2015-08-24

Applicant: LAPIS SEMICONDUCTOR CO., LTD.

Inventor： Takashi Taya

IPC: G05F1/563 ,  H02M3/158 ,  G05F5/00 ,  H02J7/00 ,  H02M1/00

CPC classification number: H02M3/158 ,  G05F1/563 ,  G05F5/00 ,  H02J7/0065 ,  H02M3/1584 ,  H02M3/1588 ,  H02M2001/0032 ,  H02M2001/0045 ,  H02M2001/0048 ,  Y02B70/1466 ,  Y02B70/1491 ,  Y02B70/16

Abstract: A power source circuit includes a power source terminal for inputting a power source voltage; a switching regulator including a switching circuit connected to the power source terminal and a smoothing circuit connected to the switching circuit; a series regulator connected to the switching regulator in series; a switching portion; and a control portion. The smoothing circuit includes a capacitor and an inductor to output a first voltage. The series regulator is connected to the switching circuit and the smoothing circuit in series to output a second voltage. The switching portion supplies the power source voltage to the series regulator. The control portion outputs a switching signal for controlling the switching portion to turn on or off according to the power source voltage.

Abstract translation: 电源电路包括用于输入电源电压的电源端子; 开关调节器，包括连接到电源端子的开关电路和连接到开关电路的平滑电路; 串联稳压器串联连接到开关稳压器; 切换部; 和控制部。 平滑电路包括电容器和电感器以输出第一电压。 串联调节器串联连接到开关电路和平滑电路以输出第二电压。 开关部分将电源电压提供给串联调节器。 控制部根据电源电压输出用于控制开关部分导通或截止的开关信号。

公开(公告)号：US09397570B2

公开(公告)日：2016-07-19

申请号：US14504820

申请日：2014-10-02

Applicant: ADVANCED ANALOGIC TECHNOLOGIES INCORPORATED

Inventor： Robert Stephen Wrathall

IPC: H02M3/158 ,  H02M1/08 ,  H02M1/00

CPC classification number: H02M3/158 ,  H02M1/08 ,  H02M3/1588 ,  H02M2001/0022 ,  Y02B70/1466

Abstract: A circuit for controlling a switching regulator is provided. The circuit includes a first input to receive a feedback signal from the switching regulator proportional to an output voltage of the switching regulator, a second input to receive a voltage reference signal, an output to be coupled to an input of the switching regulator, an error amplifier having a first input terminal coupled to the first input to receive the feedback signal, a second input terminal coupled to the second input to receive the voltage reference signal, and an output terminal coupled to the output, and a compensation network coupled between the second input and the output. The compensation network includes a series combination of a first capacitance and a first resistance coupled between the second input and a node, a second resistance coupled between the node and the output, and a second capacitance coupled to the node.

Abstract translation: 提供一种用于控制开关调节器的电路。 该电路包括第一输入端，用于接收与开关稳压器的输出电压成比例的开关调​​节器的反馈信号，用于接收电压参考信号的第二输入端，耦合到开关调节器的输入端的输出端，误差 放大器，其具有耦合到第一输入端以接收反馈信号的第一输入端，耦合到第二输入以接收电压参考信号的第二输入端以及耦合到输出的输出端，以及耦合在第二输入端之间的补偿网络 输入和输出。 补偿网络包括第一电容和耦合在第二输入和节点之间的第一电阻，耦合在节点和输出之间的第二电阻以及耦合到该节点的第二电容的串联组合。

公开(公告)号：US09397567B2

公开(公告)日：2016-07-19

申请号：US14287931

申请日：2014-05-27

Applicant: Apple Inc.

Inventor： Shawn Searles ,  Emerson S Fang

IPC: G05F1/10 ,  H02M3/158 ,  H02M1/088

CPC classification number: H02M3/158 ,  H02M1/088 ,  H02M3/1584 ,  H02M3/1588 ,  Y02B70/1466

Abstract: A method and apparatus for augmenting an external voltage regulator with a shunt integrated voltage regulator is disclosed. In one embodiment, an integrated circuit (IC) includes a load circuit coupled to a supply voltage node. The supply voltage node is electrically coupled to receive a supply voltage from an external voltage regulator. The IC also includes a shunt integrated voltage regulator coupled to the supply voltage node and implemented on the same IC die as the load circuit. If the supply voltage falls below a specified value (e.g., to increased current demand), the integrated voltage regulator may begin supplying current to the load. This may cause the supply voltage to return to within its specified range of the specified value, while allowing the external voltage regulator sufficient time to respond to the increased current demand. Thus, voltage droops on the supply voltage node may be minimized.

Abstract translation: 公开了一种用于利用分流集成稳压器增强外部电压调节器的方法和装置。 在一个实施例中，集成电路（IC）包括耦合到电源电压节点的负载电路。 电源节点电耦合以从外部电压调节器接收电源电压。 IC还包括耦合到电源电压节点并在与负载电路相同的IC管芯上实现的分流集成稳压器。 如果电源电压低于指定值（例如，增加电流需求），集成稳压器可能开始向负载提供电流。 这可能导致电源电压恢复到指定值的指定范围内，同时允许外部电压调节器有足够的时间来响应增加的电流需求。 因此，电源电压节点上的电压下降可以被最小化。