公开(公告)号：WO2022269216A1

公开(公告)日：2022-12-29

申请号：PCT/GB2022/050771

申请日：2022-03-29

Applicant: CIRRUS LOGIC INTERNATIONAL SEMICONDUCTOR LIMITED

Inventor： SADATI, Hamed ,  BRESLIN, John Anthony ,  HEGDE, Susanth ,  MELANSON, John L.

IPC: G05F1/565 ,  H02M3/158 ,  H03K17/04206 ,  H03K17/063 ,  H03K17/302

Abstract: Pre-conditioning circuitry for pre-conditioning a node of a circuit to support a change in operation of the circuit, wherein the circuit is operative to change a state of the node to effect the change in operation of the circuit, and wherein the pre-conditioning circuitry is configured to apply a voltage, current or charge directly to the node to reduce the magnitude of the change to the state of the node required by the circuit to achieve the change in operation of the circuit.

公开(公告)号：WO2022098562A1

公开(公告)日：2022-05-12

申请号：PCT/US2021/057138

申请日：2021-10-28

Applicant: PSEMI CORPORATION

Inventor： VANGARA, Satish ,  KAMEL, Amr

IPC: G05F1/565 ,  G05F1/575

Abstract: Low drop-out (LDO) regulator circuits and methods that can operate at high frequencies without the adverse consequences of an oscillatory resonance effect from a capacitive load. In a first embodiment, a low pass filter (LPF) is coupled to the LDO and tuned to cancel the oscillatory resonance effect. In a second embodiment, the LPF is a second-order LPF and/or programmable. Since the tuning values of the programmable LPF may be programmatically selected, a much greater range of external capacitors values (with attendant ESR and ESL values), as well as a wider range of system parasitic capacitances, can be accommodated while maintaining system stability. Some variants of the second embodiment include an oscillation detector and filter bit control circuit that allows the tuning values of the programmable LPF to be dynamically determined and re-determined. An impedance-lowering device may be coupled to lower the impedance of the connection to the LPF.

公开(公告)号：WO2016114911A1

公开(公告)日：2016-07-21

申请号：PCT/US2015/067488

申请日：2015-12-22

Applicant: CAO, Hua

Inventor： CAO, Hua

IPC: H02M3/137 ,  H02M3/156 ,  G05F1/565

CPC classification number: H02M3/156 ,  H02M2003/1566

Abstract: A novel method to operate a switching regulator is presented. The method includes the generation of at least two reference signals. A first reference signal is a constant DC voltage signal and a second reference signal is a periodic ramp sawtooth signal at a given frequency. It also includes the generation of a feedback signal by using the output voltage of the switching regulator. In one method, a capacitor is either charged by a bias current or discharged by a switch. A first comparator is configured to compare a first constant DC reference voltage signal to a feedback signal. A second comparator is configured to compare a periodic negative ramp sawtooth signal to a voltage signal on the capacitor. In an alternative method, a comparator is configured to compare the feedback signal to either the periodic ramp sawtooth reference signal or the constant DC reference signal depending on the switching operation of the switching regulator. In the alternative method, the periodic ramp sawtooth reference signal can be either positive or negative. The method is presented for buck switching regulators, and can be utilized also for boost, buck-boost, flyback, forward, and sepic, etc.

Abstract translation: 介绍了一种操作开关稳压器的新方法。 该方法包括产生至少两个参考信号。 第一参考信号是恒定的直流电压信号，第二参考信号是给定频率的周期性斜坡锯齿波信号。 它还包括通过使用开关稳压器的输出电压产生反馈信号。 在一种方法中，电容器由偏置电流充电或由开关放电。 第一比较器被配置为将第一恒定DC参考电压信号与反馈信号进行比较。 第二比较器被配置为将周期性负斜坡锯齿波信号与电容器上的电压信号进行比较。 在替代方法中，比较器被配置为根据开关调节器的开关操作将反馈信号与周期性斜坡锯齿参考信号或恒定DC参考信号进行比较。 在替代方法中，周期性斜坡锯齿参考信号可以是正或负。 该方法用于降压开关稳压器，也可用于升压，降压 - 升压，反激，前进和分离等。

公开(公告)号：WO2016044487A1

公开(公告)日：2016-03-24

申请号：PCT/US2015/050526

申请日：2015-09-16

Applicant: ALPHA AND OMEGA SEMICONDUCTOR (CAYMAN) LTD.

Inventor： LIN, Tien-Chi ,  LIU, Chih-Yuan ,  HSU, Yung-Chuan ,  HUANG, Pei-Lun

IPC: H02M1/10 ,  H02M3/335 ,  H02M7/155 ,  H02M7/21 ,  G05F1/565

CPC classification number: H02M3/33507 ,  H02M1/36 ,  H02M3/33515 ,  H02M3/33523

Abstract: A constant on-time isolated converter comprising a transformer is disclosed. The transformer primary side connects to an electronic switch and secondary-side connects to a load and a processor. The processor connects to a driver on primary side through at least one coupling element and to the electronic switch. The processor receives an output voltage or an output current across the load generating a control signal. The driver receives control signal through the coupling element and accordingly changes the electronic switch ON/OFF state, regulating output voltage and current via the transformer, where the electronic switch ON/OFF duration is determined between the moment control signal changes from negative to positive and the moment it changes from positive to negative to achieve a high-speed response to load transient.

Abstract translation: 公开了一种包括变压器的恒定导通时间隔离变换器。 变压器初级侧连接到电子开关，次级侧连接到负载和处理器。 处理器通过至少一个耦合元件和电子开关连接到初级侧的驱动器。 处理器接收跨越负载的输出电压或输出电流，产生控制信号。 驱动器通过耦合元件接收控制信号，从而改变电子开关的ON / OFF状态，通过变压器调节输出电压和电流，其中确定电子开关ON / OFF持续时间在时刻控制信号从负变为正， 它从正向变化到负值，实现对负载瞬变的高速响应。

公开(公告)号：WO2016004987A1

公开(公告)日：2016-01-14

申请号：PCT/EP2014/064699

申请日：2014-07-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD. ,  ZHOU, Bin ,  KOIFMAN, Vladimir

Inventor： ZHOU, Bin ,  KOIFMAN, Vladimir

IPC: G05F1/56 ,  G05F1/563 ,  G05F1/565 ,  G05F1/575 ,  G05F1/618

CPC classification number: G05F1/575 ,  G05F1/10 ,  G05F1/56 ,  G05F1/563 ,  G05F1/565 ,  G05F1/618

Abstract: A low dropout voltage regulator (100) includes: a pass element (M0) connected between an input terminal (Vin) and an output terminal (Vout) of the low dropout voltage regulator; an error amplifier (OP0) driving a control terminal of the pass element (M0); a first compensation element (M6) connected to the output terminal (Vout) of the low dropout voltage regulator; and a compensation circuit (101) connected to a control terminal (A) of the first compensation element (M6), wherein the compensation circuit (101) is configured to control a trans-conductance ( g m6 ) of the first compensation element (M6) in accordance with a noise compensation criterion.

Abstract translation: 低压降稳压器（100）包括：连接在低压降稳压器的输入端（Vin）和输出端（Vout）之间的通过元件（M0） 驱动通过元件（M0）的控制端子的误差放大器（OP0）; 连接到所述低压差稳压器的输出端子（Vout）的第一补偿元件（M6）; 以及连接到所述第一补偿元件（M6）的控制端子（A）的补偿电路（101），其中所述补偿电路（101）被配置为控制所述第一补偿元件（M6）的跨导电性（g m6） ）根据噪声补偿标准。

公开(公告)号：WO2015081628A1

公开(公告)日：2015-06-11

申请号：PCT/CN2014/071011

申请日：2014-01-21

Applicant: 深圳市华星光电技术有限公司

Inventor： 胡安乐 ,  曹丹

IPC: G05F1/565

CPC classification number: H03K17/223

Abstract: 一种IC芯片输入电压范围优化电路及优化方法，该电路中上拉单元接收输入电压，输出相应的电压电平；触发单元将上拉单元输出的电压电平与给定的阈值电压进行比较，根据比较结果输出相应电平的使能信号给IC芯片的使能端，以控制IC芯片启停；稳压单元接收上拉单元和触发单元输出的电压电平，根据上拉单元和触发单元输出的电压电平输出相应电平的电压给上拉单元，使上拉单元上拉输出的电压电平大于等于阈值电压，使IC芯片启动工作，或者使上拉单元保持输出的电压电平大于等于所述阈值电压，使IC芯片工作不受所述输入电压变化的影响；能够确保当输入电压在一定的范围内变化时IC芯片仍然能够正常工作。

公开(公告)号：WO2014133521A1

公开(公告)日：2014-09-04

申请号：PCT/US2013/028251

申请日：2013-02-28

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： HUMPHREY, Daniel ,  BEMAT, Mohamed Amin

IPC: G05F1/565 ,  G05F1/66

CPC classification number: H02M1/4216 ,  H02J1/14 ,  H02J3/46 ,  H02M7/04 ,  Y10T307/406

Abstract: A sharing criteria metric is received for each of three phases of a three-phase power. Loads on power converters receiving the three phase power are adjusted based on the sharing criteria metric of each of the three phases.

Abstract translation: 为三相电源的三相中的每一个接收共享标准度量。 接收三相电力的电力转换器的负载根据三相各自的共用标准指标进行调整。

公开(公告)号：WO2014031348A1

公开(公告)日：2014-02-27

申请号：PCT/US2013/054062

申请日：2013-08-08

Applicant: SANDISK TECHNOLOGIES INC.

Inventor： RICHTER, Elkana ,  HASSAN, Yossi ,  ELRAN, Tomer

IPC: G05F1/565

CPC classification number: G05F1/565

Abstract: A voltage regulator compensation circuit provides power to a dynamic load and includes a power transistor configured to drive the dynamic load, a reference determining transistor configured to establish a voltage reference proportional to a regulated output voltage of the power transistor, and a control circuit coupled to a gate input of both the power transistor and the reference determining transistor. Also included is a comparison engine configured to compare the regulated output voltage and the voltage reference, and a current consuming transistor operatively coupled to an output of the power transistor and configured to provide a varying secondary load. The comparison engine is configured to control the current consuming transistor to increase current draw or decrease current draw from the power transistor based on the difference between the regulated output voltage and the voltage reference.

Abstract translation: 电压调节器补偿电路为动态负载提供电力，并且包括被配置为驱动动态负载的功率晶体管，配置为建立与功率晶体管的调节输出电压成比例的电压基准的参考确定晶体管，以及耦合到 功率晶体管和参考确定晶体管的栅极输入。 还包括被配置为比较调节的输出电压和电压基准的比较引擎，以及可操作地耦合到功率晶体管的输出并被配置为提供变化的次级负载的电流消耗的晶体管。 比较引擎被配置为基于调节的输出电压和电压基准之间的差异来控制电流消耗晶体管以增加从功率晶体管的电流消耗或减小电流消耗。

公开(公告)号：WO2014026178A1

公开(公告)日：2014-02-13

申请号：PCT/US2013/054481

申请日：2013-08-12

Applicant: TEXAS INSTRUMENTS INCORPORATED ,  TEXAS INSTRUMENTS JAPAN LIMITED

Inventor： BARTH, Carsten ,  HOVERSTEN, John ,  BERG, Steven ,  HELLEMAN, Bert ,  VANNORSDEL, Kevin ,  STAVEREN, Arie Van ,  YOUSEFZADEH, Vahid

IPC: G05F1/565 ,  G05F1/10 ,  G05F1/66

CPC classification number: H02M3/158 ,  H02M2001/0045 ,  H03F1/0222 ,  H03F2200/102 ,  H03F2200/432

Abstract: A disclosed switched mode assisted linear (SMAL) amplifier/regulator architecture may be configured as a SMAL regulator (200) to supply power to a dynamic load, such as an RF power amplifier. Embodiments of a SMAL regulator include configurations in which a linear amplifier (210) and a switched mode converter (switcher) (230) parallel coupled at a supply node, and configured such that the amplifier sets load voltage (VPA), while the amplifier and the switched mode converter are cooperatively controlled to supply load current (lPA). In one embodiment, the linear amplifier (210) is AC coupled to the supply node (ΡΑ0υτ), and the switched converter is configured with a capacitive charge control loop that controls the switched converter to effectively control the amplifier to provide capacitive charge control. In another embodiment, the amplifier includes separate feedback loops: an external relatively lower speed feedback loop may be configured for controlling signal path bandwidth, and an internal relatively higher speed feedback loop may be configured for controlling output impedance bandwidth of the linear amplifier.

Abstract translation: 公开的开关模式辅助线性（SMAL）放大器/调节器架构可以被配置为SMAL调节器（200），以向诸如RF功率放大器之类的动态负载供电。 SMAL调节器的实施例包括其中在电源节点处并联耦合的线性放大器（210）和开关模式转换器（切换器）（230）并且被配置为使得放大器设置负载电压（VPA）的配置，而放大器和 开关模式转换器协同控制以提供负载电流（IPA）。 在一个实施例中，线性放大器（210）被AC耦合到电源节点（RhoAlpha0upsilontau），并且开关转换器配置有电容性电荷控制环路，其控制开关转换器以有效地控制放大器以提供电容充电控制。 在另一个实施例中，放大器包括单独的反馈回路：外部相对较低速度的反馈回路可以被配置为用于控制信号路径带宽，并且可以配置内部相对较高速度的反馈回路来控制线性放大器的输出阻抗带宽。

公开(公告)号：WO2014011338A1

公开(公告)日：2014-01-16

申请号：PCT/US2013/045111

申请日：2013-06-11

Applicant: R2 SEMICONDUCTOR, INC. ,  GALBIS, Pablo Moreno ,  BROWN, James E.C. ,  SEVERSON, Cory

Inventor： GALBIS, Pablo Moreno ,  BROWN, James E.C. ,  SEVERSON, Cory

IPC: G05F1/565

CPC classification number: G05F1/46 ,  H02M3/156

Abstract: Embodiments of systems, methods and apparatuses of a switching voltage regulator are disclosed. One switching voltage regulator includes a series switch element, a shunt switch element, a PWM controller, and a mode controller. The PWM controller includes an error amplifier and a switching controller. The error amplifier generates an error signal based on a difference between a reference voltage and an output voltage. Further, the switching controller is operative to generate switch element control voltages based on the error signal, for controlling opening and closing of the series switch element and the shunt switch element, wherein the opening and closing of the series switch element and the shunt switch element generates a switching voltage. The mode controller is operative adjust a gain of the error amplifier over a selected range of frequencies based on a parameter indicative of a likelihood of oscillations in the output voltage.

Abstract translation: 公开了开关电压调节器的系统，方法和装置的实施例。 一个开关电压调节器包括串联开关元件，分流开关元件，PWM控制器和模式控制器。 PWM控制器包括误差放大器和开关控制器。 误差放大器基于参考电压和输出电压之间的差产生误差信号。 此外，开关控制器可操作地基于误差信号产生开关元件控制电压，用于控制串联开关元件和分流开关元件的断开和闭合，其中串联开关元件和分流开关元件的断开和闭合 产生开关电压。 模式控制器可操作地基于指示输出电压中的振荡的可能性的参数在所选择的频率范围内调整误差放大器的增益。