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    • 81. 发明申请
    • LOW DROP-OUT DC VOLTAGE REGULATOR
    • 低压降直流稳压器
    • WO2009098545A1
    • 2009-08-13
    • PCT/IB2008/051769
    • 2008-02-04
    • FREESCALE SEMICONDUCTOR, INC.SICARD, Thierry
    • SICARD, Thierry
    • G05F1/56
    • G05F1/56
    • A low drop-out DC voltage regulator comprising an output pass element (306) for controlling an output voltage ( v O ) of power supplied from a power supply through the output pass element to a load ( R L ), a source of a reference voltage ( v ref ), and a feedback loop for providing to the output pass element a control signal tending to correct error in the output voltage. The feedback loop includes a differential module (302) responsive to relative values of the output voltage ( v O ) and the reference voltage ( v ref ) and an intermediate module (304) driven by the differential module for providing the control signal. The differential module (302) presents the widest bandwidth of the modules of the regulator and the differential module presents a frequency pole (500) that is higher than the cut-off frequency (502) of the regulator, at which its regulation gain becomes less than one.
    • 一种低压降直流电压调节器,包括用于控制从电源通过输出通过元件提供给负载(RL)的电力的输出电压(v O)的输出通过元件(306),参考电压源 (v ref)和用于向输出通过元件提供趋向于校正输出电压误差的控制信号的反馈回路。 反馈回路包括响应于输出电压(v O)和参考电压(v ref)的相对值的差分模块(302)和由差分模块驱动的用于提供控制信号的中间模块(304)。 差分模块(302)呈现调节器的模块的最宽带宽,并且差分模块呈现高于调节器的截止频率(502)的频率极(500),在该调节器的调节增益变小 比一个。
    • 82. 发明申请
    • HYBRID ON-CHIP REGULATOR FOR LIMITED OUTPUT HIGH VOLTAGE
    • 用于有限输出高电压的混合型片内调节器
    • WO2009091474A1
    • 2009-07-23
    • PCT/US2008/087050
    • 2008-12-16
    • OMNIVISION TECHNOLOGIES, INC.KOH, Yun-HakWU, Charles, Qingle
    • KOH, Yun-HakWU, Charles, Qingle
    • H02M3/335
    • G05F1/56
    • A driver circuit (300) provides fast settling times, slew rate control, and power efficiency, while reducing the need for large external capacitors (340). A voltage reference circuit (310) generates a voltage reference signal (Vref ). A comparator (330) compares the voltage reference signal and a driver output signal (320) and generates an output high voltage control signal. An output driver (320) includes a first (321) and a second (322) switch that are coupled together. The first and second switches are further coupled to generate the driver output signal in response to coupling the output high voltage control signal (333) to the control terminal of the first switch and coupling an input signal (power down) to the control terminal of the second switch.
    • 驱动电路(300)提供快速建立时间,转换速率控制和功率效率,同时减少对大型外部电容器的需求(340)。 电压参考电路(310)产生电压参考信号(Vref)。 比较器(330)比较电压基准信号和驱动器输出信号(320),并产生输出高电压控制信号。 输出驱动器(320)包括耦合在一起的第一(321)和第二(322)开关。 第一和第二开关还被耦合以响应于将输出高电压控制信号(333)耦合到第一开关的控制端而产生驱动器输出信号,并将输入信号(掉电)耦合到控制端 第二个开关
    • 84. 发明申请
    • LINEAR VOLTAGE REGULATOR
    • 线性稳压器
    • WO2009027220A1
    • 2009-03-05
    • PCT/EP2008/060565
    • 2008-08-12
    • INTERNATIONAL BUSINESS MACHINES CORPORATIONIBM UNITED KINGDOM LIMITEDKIM, Seongwon
    • KIM, Seongwon
    • G05F1/56
    • G05F1/56
    • A linear voltage regulator is provided. The linear voltage regulator includes a first circuit configured to receive the first voltage from a voltage source and to remove frequency components of the first voltage in a first frequency range to obtain an output voltage at a primaryoutput node. The linear voltage regulator further includes a second circuit having first and second inverterselectrically coupled to the primaryoutput node of the first circuit. The second circuit is configured to receive the output voltage and to remove frequency components of the output voltage in a second frequency range. The second frequency range is greater than the first frequency range.
    • 提供线性稳压器。 线性稳压器包括被配置为从电压源接收第一电压并且在第一频率范围中去除第一电压的频率分量以获得主输出节点处的输出电压的第一电路。 线性电压调节器还包括具有第一和第二反相器的第二电路,该第一和第二反相器选择性地耦合到第一电路的主输出节点。 第二电路被配置为接收输出电压并且在第二频率范围中去除输出电压的频率分量。 第二个频率范围大于第一个频率范围。
    • 87. 发明申请
    • A RECONFIGURABLE TOPOLOGY FOR SWITCHING AND LINEAR VOLTAGE REGULATORS
    • 用于开关和线性稳压器的可重构拓扑
    • WO2004063865A2
    • 2004-07-29
    • PCT/US2004/000182
    • 2004-01-06
    • TEXAS INSTRUMENTS INCORPORATEDTRAFTON, Fredrick, W.GUNAWAN, Sujanto
    • TRAFTON, Fredrick, W.GUNAWAN, Sujanto
    • G06F
    • G05F1/56
    • A configurable voltage regulator (28; 128) operable in either of two selectable modes or topologies is disclosed. In one disclosed embodiment, the voltage regulator (28) can operate as a linear regulator or a switching regulator. A gate driver (35) and an error amplifier (36) is used in each mode. Configuration switches (34) are controlled by a configuration amplifier (40) to connect the error amplifier (36) to the gate driver (35) in the linear regulator mode, or to connect the error amplifier (36) to circuitry (42, 44, 46) for controlling the gate driver (35) in switching regulator mode. In another disclosed embodiment, the voltage regulator (128) generates a negative polarity regulated voltage according to a switching regulator or charge pump topology.
    • 公开了可在两种可选模式或拓扑结构中的任何一种中操作的可配置电压调节器(28; 128)。 在一个公开的实施例中,电压调节器(28)可以作为线性调节器或开关调节器工作。 在每个模式中使用栅极驱动器(35)和误差放大器(36)。 配置开关(34)由配置放大器(40)控制以在线性调节器模式中将误差放大器(36)连接到栅极驱动器(35),或者将误差放大器(36)连接到电路(42,44) ,46),用于在开关调节器模式下控制栅极驱动器(35)。 在另一个公开的实施例中,电压调节器(128)根据开关调节器或电荷泵拓扑产生负极性调节电压。
    • 89. 发明申请
    • VARIABLE MULTI-CHANNEL HIGH VOLTAGE POWER SOURCE, WITH ACCURATE CURRENT SENSE
    • 可变多通道高压电源,具有精确的电流检测
    • WO2002097549A1
    • 2002-12-05
    • PCT/US2002/017165
    • 2002-05-31
    • ACLARA BIOSCIENCES, INC.WEVERS, William, E.BJORNSON, Torleif, O.DUMITRESCU, George
    • WEVERS, William, E.BJORNSON, Torleif, O.DUMITRESCU, George
    • G05F1/40
    • G05F1/56
    • A circuit generates a plurality of channels of high-voltage output signals (212) from the substantially constant bulk power source output signal of a high-voltage power source (204) that is powered by a low-voltage power source (206). The circuit includes a plurality of high-voltage regulators (208), each high voltage regulator corresponds to a particular one of the channels. Each high-voltage regulator (208) regulates the bulk power source output signal based on an input control voltage signal for that channel e.g., provided from a microprocessor (202) to generate a regulated high-voltage output signal for that channel. The regulated high-voltage output signal has voltage level corresponding to a level of the input control voltage signal for that channel. The high-voltage regulator circuit (208) also generating a high-voltage tracking power signal (211) for that channel having a voltage level within a predetermined range of the regulated high-voltage output signal. Furthermore, each channel has associated with a current sensor (210). The current sensor (210) for a particular channel is powered by the high-voltage tracking power signal (211) for that channel and generates an output high-voltage digital current sensing signal for that channel that corresponds to the current in the regulated high-voltage output signal for that channel. An isolation barrier (216) is provided for each channel. Each isolation barrier (216) translates the voltage level of the output high-voltage digital current sensing signal for that channel to a low-voltage level.
    • 电路从由低压电源(206)供电的高压电源(204)的基本上恒定的体电源输出信号产生多个通道的高压输出信号(212)。 电路包括多个高压调节器(208),每个高电压调节器对应于特定的一个通道。 每个高压调节器(208)基于用于该通道的输入控制电压信号(例如从微处理器(202)提供)产生用于该通道的调节的高电压输出信号来调节体电源输出信号。 调节的高电压输出信号具有与该通道的输入控制电压信号的电平相对应的电压电平。 高压调节器电路(208)还产生用于该通道的高电压跟踪功率信号(211),其具有在调节的高电压输出信号的预定范围内的电压电平。 此外,每个通道与电流传感器(210)相关联。 用于特定通道的电流传感器(210)由用于该通道的高电压跟踪功率信号(211)供电,并为该通道产生对应于调节高频电流中的电流的输出高电压数字电流感测信号, 该通道的电压输出信号。 为每个通道提供隔离屏障(216)。 每个隔离屏障(216)将该通道的输出高电压数字电流感测信号的电压电平转换为低电压电平。
    • 90. 发明申请
    • WIDEBAND REGULATOR WITH FAST TRANSIENT SUPPRESSION CIRCUITRY
    • 宽瞬态抑制电路的宽带调节器
    • WO02019487A2
    • 2002-03-07
    • PCT/US2001/027140
    • 2001-08-30
    • G05F1/56G05F3/24H02M3/07H02B
    • G05F3/242G05F1/56H02M3/07
    • A wideband voltage regulator is configured to provide suppression of fast transients, which can include a boosting circuit and a sensing circuit. The boosting circuit can be suitably configured to boost the voltage regulator response, while the sensing circuit can determine when such a boost may be desired. Accordingly, the response of the voltage regulator can be accelerated to a fast load transient beyond the closed loop bandwidth limited response or the slew rate limited response of the voltage regulator. An exemplary voltage regulator can be configured with an active sensing circuit comprising a sensing amplifier with switch control outputs, and a boosting circuit comprising N stored charge sources, e.g., boost capacitors, and (3N-1) switches that are configured to accelerate the voltage regulators response to a fast load transient beyond the closed loop bandwidth limited or slew rate limited response of the voltage regulator. The sensing circuit can determine when to switch the state of the stored charge sources by comparison of the output voltage of the regulator to a constant reference voltage. In addition, the sensing circuit can switch the state of the boost capacitors by comparing the voltage drop across the parasitic inductance between the voltage regulator output and the load to a constant reference voltage, or by comparing the difference between the voltage drop across the parasitic inductance of the supply side and the ground return of the load. Further, the sensing circuit can be triggered on a one-shot basis with preset pulse width, or by any other suitable trigger methodology. Still further, a differential offset voltage can be added to the sense amplifier to suitably adjust or configure the sensitivity of the sensing circuit.
    • 用于快速瞬态抑制的宽带稳压器,可能包括升压电路和检测电路。 升压电路放大响应,同时检测电路可以检测何时需要这样的升压。 结果,电压调节器对快速充电瞬态的响应可以被加速超过对闭环的带宽的有限响应,或者限于电压调节器的上升速率。 举例来说,这种电压调节器可以包括主动检测电路,该主动检测电路包括切换控制输入的检测放大器和包括N个存储的电荷源(例如升压电容器)和开关(3N -1),它能够加快电压调节器对快速充电瞬态的响应速度,超出对闭环带宽的有限响应或电压调节器的上升速率。 另外,检测电路可以通过比较电压调节器的输出和恒定的参考电压负载之间的寄生电感两端的电压降,或者通过比较电压之间的差异来切换电容器的状态。 电源侧寄生电感和负载回地。 此外,检测电路可以以预设脉冲宽度或其他合适的触发技术一次性触发。 最后,可以将偏移差分电压添加到检测放大器,以便以适当的方式调整或配置检测电路的灵敏度。