公开(公告)号：EP2615731A1

公开(公告)日：2013-07-17

申请号：EP12150761.0

申请日：2012-01-11

申请人： Research In Motion Limited

发明人： Muhammad, Khurram

IPC分类号： H02M3/158

CPC分类号： H02M3/1584 ,  H02M2003/1566

摘要： Provided is an apparatus comprising a DCDC converter having a plurality of converter modules each configured to convert current from a first voltage level to another voltage form. In accordance with an embodiment of the disclosure, the converter modules are configured to be dynamically enabled or disabled such that only each converter module that has been enabled converts current for an output of the DCDC converter. Any inefficiency that would have been introduced by converter modules that are not needed are mitigated or eliminated altogether. The effect is that efficiency can be improved during low load conditions when there is no need to enable all of the converter modules.

摘要翻译： 提供了包括具有转换器模块多个均配置为将电流从第一电压电平到另一电压形式的DCDC转换器的装置。在雅舞蹈与本公开的实施例中，转换器模块被配置为动态地启用或禁用搜索 也只有每个转换器模块被使能做到电流转换为在DCDC转换器的输出。 这将已经介绍了变流器模块的任何低效率却并不需要的是减轻或完全消除。 效果确实效率可以在低负荷条件下当没有必要使所有的转换器模块来改善。

公开(公告)号：EP2272159A1

公开(公告)日：2011-01-12

申请号：EP09721852.3

申请日：2009-03-19

申请人： QUALCOMM Incorporated

发明人： MOK, Ken Tsz Kin ,  KING, Jackson ,  KOSKI, Marko

IPC分类号： H02M3/156

CPC分类号： H02M3/156 ,  H02M2003/1566

摘要： A power controller having good transient performance and including a voltage regulator and one or more (K) transient recovery circuits is described. The voltage regulator receives a supply voltage and generates a regulator output signal used to generate K output voltages for K loads. Each transient recovery circuit detects for transients in a respective output voltage and corrects the detected transients. In one design, the transient recovery circuit compares the output voltage against a low threshold voltage, detects a low transient when the output voltage is below the low threshold voltage, and couples the output voltage to a high voltage to correct the low transient. Alternatively or additionally, the transient recovery circuit compares the output voltage against a high threshold voltage, detects a high transient when the output voltage is above the high threshold voltage, and couples the output voltage to a low voltage to correct the high transient.

公开(公告)号：EP1691473A3

公开(公告)日：2009-09-30

申请号：EP06100499.0

申请日：2006-01-18

申请人： Intersil Americas Inc.

发明人： Qiu, Weihong ,  Liang, Zhixiang ,  Isham, Robert H. ,  Dowlat, Ben A. ,  Abou-Hamze, Rami

IPC分类号： H02M3/156 ,  H02M3/158

CPC分类号： H02M3/1584 ,  H02M3/1588 ,  H02M2001/0025 ,  H02M2003/1566 ,  Y02B70/1466

摘要： A dual-edge modulation controller for fast response to fast load transitions including first and second ramp circuits, first and second comparators, an error amplifier and pulse control logic. The first ramp circuit provides a leading-edge ramp synchronous with a clock. The error amplifier compares a feedback signal with a reference and provides a compensation signal. The first comparator compares the leading-edge ramp with the compensation signal and asserts a set signal. The second ramp circuit provides a trailing-edge ramp that begins ramping when the set signal is asserted. The second comparator compares the trailing-edge ramp with the compensation signal and asserts a reset signal. The pulse control logic asserts a PWM signal when the set signal is asserted and de-asserts the PWM signal when the reset signal is asserted. The controller may control multiple phases with current balancing. The slew rate of the ramps may be adjusted based on the number of PWM signal asserted.

公开(公告)号：EP1813011A2

公开(公告)日：2007-08-01

申请号：EP05801775.7

申请日：2005-11-08

申请人： Koninklijke Philips Electronics N.V.

发明人： SCHOOFS, Frans

IPC分类号： H02M3/155 ,  H02M3/07

CPC分类号： H02M3/07 ,  H02M3/158 ,  H02M7/487 ,  H02M2003/1566

摘要： A power converter (1) comprises a voltage level increasing circuit (3) which receives a DC-input voltage (VIN) between first and second power converter inputs (IN1, IN2), and which has an output (O1; O2, O3) to supply an adapted input voltage having either a higher level than the input voltage (VIN) or a polarity opposite to the input voltage (VIN). A down-converter (2) has first and second down-converter inputs (IN3, IN4), a control switch (S1) with a main current path arranged between a first node (N1) and the first down­converter input (IN3), an inductor (L) arranged between the first node (N1) and a load (LO), and a sync switch (S2) arranged between the first node (N1) and the second down-converter input (IN4). A controller (4) controls the control switch (S1), and switches (S3, S4; S3, S4, S5, S6, S7, S8) of the voltage level increasing circuit (3) for either coupling the input voltage (VIN) or the adapted input voltage to the first node (N1) or to the first or second down­converter inputs (IN3, IN4).

公开(公告)号：EP3200334B1

公开(公告)日：2018-12-05

申请号：EP16178971.4

申请日：2016-07-12

申请人： MediaTek Inc.

发明人： Lin, Shih-Mei ,  Kuan, Chien-Wei ,  Lee, Chien-Lung ,  Meng, Che-Hao

IPC分类号： H02M3/158

CPC分类号： H02M3/158 ,  G05F1/618 ,  H02M1/08 ,  H02M2001/0009 ,  H02M2001/0045 ,  H02M2003/1566

摘要： A DC-DC converter (100) includes an inductor (110), a switch module (MP, MN), a pull-up circuit (1 20) and a pull-down circuit (1 30). The inductor (1 10) has a first node and a second node, and the second node is coupled to an output node (Nout) of the DC-DC converter (1 00). The switch module (MP, MN) is arranged for selectively connecting an input voltage or a ground voltage to the first node of the inductor (110) according to a driving signal. The pull-up circuit (120) is arranged for selectively providing a first current to the output node (Nout) of the DC-DC converter (100). The pull-down circuit (130) is arranged for selectively sinking a second current from the output node (Nout) of the DC-DC converter (100). In addition, at least one of the first current provided by the pull-up circuit (120) and the second current sunk by the pull-down circuit (130) is determined based on an inductor current flowing through the inductor (110).

公开(公告)号：EP2688200B1

公开(公告)日：2018-07-18

申请号：EP11861029.4

申请日：2011-10-24

申请人： ZTE Corporation

发明人： WANG, Linguo ,  ZHANG, Bin

IPC分类号： H02M3/155 ,  H02J1/10 ,  H03F1/32 ,  H03F1/02

CPC分类号： H02M3/10 ,  H02M3/155 ,  H02M7/483 ,  H02M2001/0022 ,  H02M2001/0045 ,  H02M2003/1566 ,  H03F1/0227

摘要： A modulation method and modulator for an envelope tracking power supply. An output of a multi-level switching regulator (202) in the envelope tracking power supply modulator is in parallel connection with an output of a linear regulator (201) via an inductor (203) and supplies power to a load. The modulation method for the envelope tracking power supply includes: generating a first control signal (209) according to the current (211) obtained from inputting a first reference level signal (206); comparing the amplitude of a second reference level signal (2061) obtained according to the first reference level signal (206) with preset amplitudes of at least three levels, and outputting a second control signal (210) according to the comparison result and the first control signal (209); the multi-level switching regulator (202) outputting a level signal of corresponding amplitude according to the second control signal(21 0), and loading the amplitude of the level on the inductor (203) to output an inductive current (208'); and linearly regulating the first reference level signal (206) via a linear regulator (201) to obtain a voltage output (207) to the load. The present disclosure resolves the problem of fixed rate of change of current output by the switching regulator of the envelope tracking power supply regulator and cannot adjust to different load current change rates, thus the inductive current outputted by the multi-level switching regulator can better track the load current change.

公开(公告)号：EP3304713A4

公开(公告)日：2018-05-30

申请号：EP16804673

申请日：2016-06-06

申请人： ENDURA TECH LLC

发明人： IHS HASSAN ,  RAU JASON

IPC分类号： H02M3/157

CPC分类号： H02M3/158 ,  H02M1/08 ,  H02M3/157 ,  H02M2001/0009 ,  H02M2001/0019 ,  H02M2003/1566

摘要： A DC-DC converter including digital circuitry for determining load current supplied to a load. In some embodiments the digital circuitry determines the load current differently based on whether the DC-DC converter is operating in pulse frequency modulation mode or pulse width modulation mode. In some embodiments the DC-DC converter includes circuitry for determining if a short circuit or over current condition exists.

公开(公告)号：EP3198356A4

公开(公告)日：2018-05-16

申请号：EP15844733

申请日：2015-08-31

申请人： INTEL CORP

发明人： COWLEY NICHOLAS P ,  SARASWAT RUCHIR ,  GOLDMAN RICHARD J ,  BERNARD DAVID T ,  WALSH GORDON J ,  LANGAN MICHAEL

IPC分类号： G05F1/56 ,  G11C5/14 ,  H02M3/156

CPC分类号： H02M3/156 ,  G05F1/56 ,  H02M1/36 ,  H02M2001/0032 ,  H02M2001/009 ,  H02M2003/1566

摘要： In at least one embodiment there is provided a method for managing bulk capacitance of a power supply system. The method includes precharging first and second bulk capacitors of the power supply system to approximately a first output voltage level and a second output voltage level, respectively; receiving a first command signal to generate, by the power supply, the first output voltage level; coupling the first bulk capacitance to load circuitry coupled to the power supply; receiving a second command signal to generate, by the power supply, the second output voltage level; and coupling the second bulk capacitance to the load circuitry coupled to the power supply.

公开(公告)号：EP3304709A4

公开(公告)日：2018-05-02

申请号：EP16804674

申请日：2016-06-06

申请人： ENDURA TECH LLC

发明人： IHS HASSAN

IPC分类号： H02M3/157 ,  H02M1/00 ,  H02M1/32 ,  H02M3/158

CPC分类号： H02M3/158 ,  H02M1/32 ,  H02M3/157 ,  H02M2001/0019 ,  H02M2003/1566

摘要： A DC-DC converter operating in pulse frequency modulation (PFM) and pulse width modulation (PWM) modes includes a plurality of PWM signal generators. The PWM signal generators generate PWM signals with different duty cycles. PWM signals with larger duty cycles may be selected for use in undervoltage situations.

公开(公告)号：EP3155714A4

公开(公告)日：2018-03-14

申请号：EP15809244

申请日：2015-06-16

申请人： ENDURA TECH LLC

发明人： DOSLUOGLU TANER ,  IHS HASSAN

IPC分类号： H02M3/156 ,  G11C5/14

CPC分类号： H02M3/158 ,  H02M1/32 ,  H02M1/36 ,  H02M2003/1566

摘要： Automatic transient control circuitry may be used to alleviate issues relating to large changes in power demands by a load in an integrated circuit. The transient control circuitry may inject current to or retract current from a load, for example charging or discharging a bypass capacitor associated with the load, when circuitry of the load is commanded to an operational state from a standby state or vice-versa, respectively.