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    PROGRAMMABLE POWER SUPPLIES FOR CELLULAR BASE STATIONS AND RELATED METHODS OF REDUCING POWER LOSS IN CELLULAR SYSTEMS
    31.
    发明公开
    PROGRAMMABLE POWER SUPPLIES FOR CELLULAR BASE STATIONS AND RELATED METHODS OF REDUCING POWER LOSS IN CELLULAR SYSTEMS 审中-公开

    公开(公告)号：EP3826194A1

    公开(公告)日：2021-05-26

    申请号：EP21152068.9

    申请日：2015-01-30

    申请人： CommScope Technologies LLC

    发明人： CHAMBERLAIN, John C. ,  GUERIN, Michael

    IPC分类号： H04B3/54 ,  H04M19/00 ,  G05F1/62 ,  H04W52/02

    摘要： A power supply for providing electrical power to a radio over a cable, comprising control logic circuitry configured to obtain a resistance of the cable having a first end coupled to the power supply; a conversion circuit electrically coupled to the control logic circuitry, and configured to output direct current (DC) power comprising a voltage; and current sensor circuitry, electrically coupled to the control logic circuitry, and configured to measure a current level, of the output DC power, drawn by the radio over the cable; wherein the conversion circuit is further configured to adjust a voltage level of the output DC power using the obtained resistance and the measured current level of the output DC power.

    Control circuit for current mode buck converter
    36.
    发明公开
    Control circuit for current mode buck converter 有权
    SteuerschaltungfürStrombetriebsarten-Abwärtswandler

    公开(公告)号：EP1632827A1

    公开(公告)日：2006-03-08

    申请号：EP04020456.2

    申请日：2004-08-27

    申请人： Infineon Technologies AG

    发明人： Bernacchia, Giuseppe ,  Chiozzi, Giorgio ,  Capodivacca, Giovanni

    IPC分类号： G05F1/62 ,  H02M3/158

    CPC分类号： H02M3/1588 ,  Y02B70/1466

    摘要： A control circuit for a switch element (T1) in a switching mode converter, used to convert an input voltage (Vin) into an output voltage (Vout).
    The circuit comprises:

    a pulse width modulator circuit (13), configurated so as to provide a pulse-width-modulated actuating signal (S1) for the switch element (T1) depending on a regulating signal (S14) dependent on the output voltage (Vout) and a current measurement signal (Vc) dependent on a current through an inductive storage element (Lout),
    an arrangement (20) that provides the current measurement signal (Vc), wherein the arrangement (20) for providing the current measurement signal is a measuring and regulating arrangement, configured so as to simulate the current measurement signal (Vc) from a signal dependent on the output voltage (Vout), a signal dependent on the difference between the input voltage (Vin) and the output voltage (Vout), and at least a first sampled value of a signal (Vs) proportional to the current (Iout) across the inductive storage element (Lout) during a period of the pulse-width-modulated actuating signal (S1).

    摘要翻译： 一种开关模式转换器中用于将输入电压（Vin）转换为输出电压（Vout）的开关元件（T1）的控制电路。 该电路包括：脉冲宽度调制器电路（13），其配置为根据取决于输出电压的调节信号（S14）为开关元件（T1）提供脉冲宽度调制的致动信号（S1） Vout）和取决于通过电感存储元件（Lout）的电流的电流测量信号（Vc），提供电流测量信号（Vc）的装置（20），其中用于提供电流测量信号的装置（20） 是一种测量和调节装置，其被配置为根据取决于输出电压（Vout）的信号来模拟电流测量信号（Vc），该信号取决于输入电压（Vin）和输出电压（Vout）之间的差 ）以及在脉冲宽度调制的致动信号（S1）的周期期间与电感性存储元件（Lout）两端的电流（Iout）成比例的信号（Vs）的至少第一采样值。

    VERFAHREN ZUR ERZEUGUNG EINER GEREGELTEN GLEICHSPANNUNG AUS EINER WECHSELSPANNUNG UND STROMVERSORGUNGSEINRICHTUNG ZUR DURCHFÜHRUNG DES VERFAHRENS
    37.
    发明授权
    VERFAHREN ZUR ERZEUGUNG EINER GEREGELTEN GLEICHSPANNUNG AUS EINER WECHSELSPANNUNG UND STROMVERSORGUNGSEINRICHTUNG ZUR DURCHFÜHRUNG DES VERFAHRENS 有权
    方法产生直流稳压从交流电源和电源电源装置执行的过程

    公开(公告)号：EP1157320B1

    公开(公告)日：2003-05-07

    申请号：EP00903561.9

    申请日：2000-02-14

    申请人： DANFOSS COMPRESSORS GmbH

    发明人： HARVEST, Nils-Ole

    IPC分类号： G05F1/62 ,  H02M3/158

    CPC分类号： H02M3/158 ,  H02M2001/007

    摘要： The invention relates to a method for generating a regulated direct voltage (UG) from an alternating voltage (UW) using a step-down transformer (S1, D1, D2, C0, L), a step-up transformer (S2, D2, C0, L), an inductance coil (L) and a control device (11) that controls the transformer in a step-down or step-up transformation mode. According to the invention, an inductance coil voltage measuring signal (I) is compared with three limiting values (A, B, C) with the purpose of simplifying said method, wherein A corresponds to zero, B lies between A and C and B and C correspond to the direct voltage (UG). Switching from the step-down to the step-up transformation mode is effected when the increasing voltage measuring signal (I) drops after reaching B and A is not reached again and increases to C instead. Switching from step-down to step-up transformation mode is effected when the decreasing voltage measuring signal (I) increases after reaching A and B is not reached and drops to A instead. In the power supply device for implementing the method, the control device (11) comprises three comparators (15, 16, 17) for comparing the limiting values (A, B, C) with the voltage measuring signal (I) of a voltage measuring device (5), wherein at least B and C are dependent upon regulation deviation (XW).

    DC power supply with enhanced input power factor
    38.
    发明公开
    DC power supply with enhanced input power factor 失效
    Gleichstromversorgung mit verbessertem Leistungsfaktor

    公开(公告)号：EP0779700A3

    公开(公告)日：1998-12-23

    申请号：EP96308924

    申请日：1996-12-10

    申请人： LOCKHEED CORP

    发明人： BENDALL CLARK ALEXANDER ,  PETERSON WILLIAM ANDERS

    IPC分类号： G05F1/62 ,  H02M1/00 ,  H02M1/42 ,  H02M3/158 ,  H02M1/12

    CPC分类号： H02M1/4208 ,  G05F1/62 ,  H02M3/1582 ,  Y02B70/126

    摘要： A direct current or direct voltage power supply (10) operating from a mains AC line (12) is corrected for power factor so that the maximum power can be extracted from the source. The AC line is full-wave rectified (14), filtered (16) and the resulting pulsating direct voltage is applied to a buck/boost switched inductor (22) switched (24) at a frequency higher than the line frequency. The buck/boost switching action is controlled so that the switchover between buck and boost modes occurs when the instantaneous value of the pulsating direct voltage equals the supply output voltage. The inductor current in the buck mode of operation is controlled to have an input voltage-squared characteristic; the inductor current in the boost mode is controlled to have an input voltage-proportional characteristic. The resulting average current makes the AC line current substantially proportional to the AC line voltage, to achieve substantially unity power factor.

    摘要翻译： 根据功率因数对从市电AC线路（12）运行的直流电或直流电压电源（10）进行校正，使得可以从电源提取最大功率。 AC线被全波整流（14），滤波（16），并且所产生的脉动直流电压以高于线频率的频率被施加到开关（24）的降压/升压开关电感器（22）。 控制降压/升压开关动作，以便当脉动直流电压的瞬时值等于电源输出电压时，发生降压和升压模式之间的切换。 控制降压操作模式中的电感器电流以具有输入电压平方特性; 控制升压模式下的电感电流以具有输入电压成比例的特性。 由此产生的平均电流使交流线电流与交流线电压基本成比例，从而实现基本上单位功率因数。

    Adaptive voltage regulator
    40.
    发明公开
    Adaptive voltage regulator 失效
    Adaptiver Spannungsregler。

    公开(公告)号：EP0500381A2

    公开(公告)日：1992-08-26

    申请号：EP92301433.6

    申请日：1992-02-21

    申请人： SGS-THOMSON MICROELECTRONICS, INC. (a Delaware corp.)

    发明人： Iannuzo, James M.

    IPC分类号： H03F1/02 ,  G05F1/62 ,  H02M3/156 ,  G05F1/56

    CPC分类号： G05F1/468 ,  G05F1/56 ,  H02M3/1563 ,  H03F1/0233

    摘要： A regulated power supply provides a regulated supply voltage at a preselected level under normal operating conditions. When power demands of the circuitry driven by the supply requires a higher voltage, the supply adapts to supply such a higher voltage. Such a supply can be used with automotive electronic circuitry, and can supply voltages up to approximately the voltage available on an automobile battery when such higher power demands occur. The higher supply voltages remain regulated, and return to normal levels when the extra power requirement is removed.

    摘要翻译： 稳定的电源在正常工作条件下提供预设电平的稳压电源电压。 当由电源驱动的电路的电源需求需要更高的电压时，电源适应于提供更高的电压。 这样的电源可以与汽车电子电路一起使用，并且当发生更高的功率需求时，可以提供高达大约在汽车电池上可用的电压的电压。 更高的电源电压保持稳定，并且在额外的功率需求被去除时恢复正常水平。