公开(公告)号：US07791314B2

公开(公告)日：2010-09-07

申请号：US12054743

申请日：2008-03-25

Applicant: Constantin Bucur ,  Vlad Mihail Popescu-Stanesti ,  Marian Niculae ,  Daryl Nees

Inventor： Constantin Bucur ,  Vlad Mihail Popescu-Stanesti ,  Marian Niculae ,  Daryl Nees

IPC: H01M10/46

CPC classification number: H02J7/0013 ,  H02J5/00 ,  H02J7/0018 ,  H02J7/0027 ,  H02J7/0057 ,  H02J7/0068 ,  H02J7/02 ,  H02J7/34 ,  H02J9/061 ,  H02J2007/0059 ,  H02J2007/0067 ,  H02M2001/0045 ,  Y02T10/7055 ,  Y10T307/527 ,  Y10T307/696

Abstract: A power supply topology according to one embodiment includes a first path coupled to a controllable DC power source, a second path coupled to a rechargeable battery, and a third path coupled to a system load, the three paths coupled to a common node. The topology may further include a unidirectional switch coupled to the first path and a selectively unidirectional switch coupled to the second path. The topology may further include a power management control circuit including a wake up circuit having a comparison circuit and an output decision circuit. Of course, many alternatives, variations, and modifications are possible without departing from this embodiment.

Abstract translation: 根据一个实施例的电源拓扑结构包括耦合到可控DC电源的第一路径，耦合到可再充电电池的第二路径和耦合到系统负载的第三路径，所述三条路径耦合到公共节点。 拓扑还可以包括耦合到第一路径的单向开关和耦合到第二路径的选择性单向开关。 拓扑还可以包括功率管理控制电路，其包括具有比较电路和输出判定电路的唤醒电路。 当然，在不偏离本实施例的情况下，可以进行许多替代，变化和修改。

公开(公告)号：US07782222B2

公开(公告)日：2010-08-24

申请号：US11307958

申请日：2006-02-28

Applicant: Ming-Han Lee ,  Tzung-Ming Chen

Inventor： Ming-Han Lee ,  Tzung-Ming Chen

IPC: G08B23/00

CPC classification number: G05F1/56 ,  H02M3/155 ,  H02M2001/0045 ,  H02M2001/009

Abstract: A voltage regulating power supply includes: a switching regulator powered by a supply voltage level, the switching regulator for generating a first output voltage in accordance to a first reference voltage; and a linear regulator coupled to the first output voltage, the linear regulator for generating a second output voltage in accordance to a second reference voltage; wherein a noise sensitive circuit draws power from the second output voltage.

Abstract translation: 电压调节电源包括：由电源电压供电的开关调节器，用于根据第一参考电压产生第一输出电压的开关调节器; 以及耦合到所述第一输出电压的线性调节器，所述线性调节器用于根据第二参考电压产生第二输出电压; 其中噪声敏感电路从第二输出电压获取功率。

公开(公告)号：US20100188051A1

公开(公告)日：2010-07-29

申请号：US12308283

申请日：2007-06-13

Applicant: Kazuo Yamazaki ,  Hidenori Tanaka ,  Yukihiro Terada ,  Tamiji Nagai ,  Toshio Nagai

Inventor： Kazuo Yamazaki ,  Hidenori Tanaka ,  Yukihiro Terada ,  Tamiji Nagai ,  Toshio Nagai

IPC: H02J7/00

CPC classification number: H02M3/1584 ,  H02J7/0072 ,  H02M3/1582 ,  H02M2001/0045

Abstract: The present invention provides a highly safe charging circuit with which overcharge of a secondary battery will never occur even when a failure occurs in a transistor or the like that controls the charging voltage or charging current or when a protection circuit does not operate normally. In a secondary battery charging circuit 4 that charges a secondary battery E2 with an input power source voltage, the power source voltage is set to a voltage (e.g. 4.0 V) that is lower than the full-charge voltage (e.g. 4.2 V) of the secondary battery. When the voltage of the secondary battery E2 is lower than the power source voltage, a constant current circuit operates to perform constant current charging without voltage step-up, and when the voltage of the secondary battery E2 is higher than the power source voltage and lower than the full-charge voltage, a voltage step-up circuit operates to perform constant current charging with voltage step-up.

Abstract translation: 本发明提供了一种高度安全的充电电路，即使在控制充电电压或充电电流的晶体管等中发生故障或者当保护电路不能正常工作时，也不会发生二次电池的过度充电。 在以输入电源电压对二次电池E2进行充电的二次电池充电电路4中，电源电压被设定为低于电源电压的全充电电压（例如4.2V）的电压（例如4.0V） 二次电池 当二次电池E2的电压低于电源电压时，恒流电路进行无电压升压的恒流充电，并且当二次电池E2的电压高于电源电压并且较低时 电压升压电路比完全充电电压工作，通过升压升压来进行恒流充电。

公开(公告)号：US20100156515A1

公开(公告)日：2010-06-24

申请号：US12719240

申请日：2010-03-08

Applicant: SHUI-MU LIN ,  TSUNG-WEI HUANG ,  JIEN-SHENG CHEN

Inventor： SHUI-MU LIN ,  TSUNG-WEI HUANG ,  JIEN-SHENG CHEN

IPC: G05F1/10

CPC classification number: H02M3/07 ,  H02M2001/0045

Abstract: A charge pump regulator has a charge pump to establish a charge path and a discharge path alternately, so as to produce a regulated voltage on an output terminal. The charge pump has at least a current control element on the charge path or the discharge path to control the current flowing therethrough according to an output-dependent feedback signal.

公开(公告)号：US20100127666A1

公开(公告)日：2010-05-27

申请号：US12277621

申请日：2008-11-25

Applicant: Alan R. Ball

Inventor： Alan R. Ball

IPC: H02J7/04 ,  H02J7/06

CPC classification number: H02J7/045 ,  H02J7/0073 ,  H02J7/008 ,  H02J7/047 ,  H02J2007/0059 ,  H02J2007/0062 ,  H02M3/158 ,  H02M2001/0045 ,  H02M2001/327

Abstract: A battery charger circuit includes a transistor having a first current electrode for receiving a charging voltage, a control electrode for receiving a control signal, and a second current electrode for providing an output voltage. The battery charger circuit further includes a rectifier having a terminal coupled to the second current electrode of the transistor, and another terminal coupled to a power supply voltage terminal. The battery charger circuit also includes a control and regulation circuit having an input for receiving a feedback signal representative of a temperature, and an output for providing the control signal. The control and regulation circuit operates in either a switching mode or a linear mode in response to the feedback signal.

Abstract translation: 电池充电器电路包括具有用于接收充电电压的第一电流电极的晶体管，用于接收控制信号的控制电极和用于提供输出电压的第二电流电极。 电池充电器电路还包括整流器，其具有耦合到晶体管的第二电流电极的端子，以及耦合到电源电压端子的另一端子。 电池充电器电路还包括具有用于接收表示温度的反馈信号的输入的控制和调节电路以及用于提供控制信号的输出。 控制和调节电路响应于反馈信号在开关模式或线性模式中工作。

公开(公告)号：US07701690B1

公开(公告)日：2010-04-20

申请号：US12008843

申请日：2008-01-15

Applicant: Yushan Li ,  Arthur J. Zirger

Inventor： Yushan Li ,  Arthur J. Zirger

IPC: H01H47/00

CPC classification number: G05F1/56 ,  H02M3/1584 ,  H02M2001/0045

Abstract: A system and a method are disclosed for suppressing load transients in radio frequency power amplifier switching power supplies. A power supply control circuit is provided that includes a switcher circuit and a low drop out circuit. Load transients are suppressed by generating a preload control signal that activates an active current source either in the switcher circuit or in the low drop out circuit. The active current source counteracts a decrease in the switcher operating voltage when a load transient is present. Load transients are also suppressed by generating a step control signal that activates a transistor in a feedback resistor divider network in the switcher circuit to increase the switcher operating voltage during a load transient. The preload and step control signals are reset when the load transient has ended.

Abstract translation: 公开了一种用于抑制射频功率放大器开关电源中的负载瞬变的系统和方法。 提供一种电源控制电路，其包括开关电路和低压降电路。 通过产生在切换器电路或低压降电路中激活有源电流源的预载控制信号来抑制负载瞬变。 当存在负载瞬变时，有源电流源抵消了开关器工作电压的降低。 还通过产生一个步进控制信号来抑制负载瞬变，该步进控制信号激活开关电路中的反馈电阻分压网络中的晶体管，以在负载瞬变期间增加开关器工作电压。 当负载瞬变结束时，预载和步进控制信号被复位。

公开(公告)号：US07701183B2

公开(公告)日：2010-04-20

申请号：US11866739

申请日：2007-10-03

Applicant: Chih-Yuan Hsieh ,  Jiunn-Way Miaw

Inventor： Chih-Yuan Hsieh ,  Jiunn-Way Miaw

IPC: G05F1/40 ,  G05F3/02

CPC classification number: G05F1/56 ,  H02M3/07 ,  H02M2001/0045

Abstract: A power circuit and a charge pumping circuit add one control switch of small size to control a power transistor, and save one switch of large area and one capacitor of large area as compared with a conventional power circuit and a conventional charge pumping circuit. The power circuit includes a power processing circuit, a linear voltage-regulating switch, and a capacitor. The linear voltage-regulating switch includes a power transistor and a control switch. The control switch has a first end coupled to a gate of the power transistor and a second end coupled to one of a drain and a source of the power transistor. When the control switch is “on”, the power transistor is “off”. When the control switch is “off”, the voltage on the drain of the power transistor is maintained at a predetermined value by the linear voltage-regulating switch.

Abstract translation: 电源电路和电荷泵浦电路加上一个小尺寸的控制开关来控制功率晶体管，与常规电源电路和常规电荷泵浦电路相比，可以节省大面积的一个开关和大面积的一个电容器。 电源电路包括功率处理电路，线性电压调节开关和电容器。 线性电压调节开关包括功率晶体管和控制开关。 控制开关具有耦合到功率晶体管的栅极的第一端和耦合到功率晶体管的漏极和源极之一的第二端。 当控制开关为“开”时，功率晶体管为“关”。 当控制开关“关闭”时，功率晶体管的漏极上的电压通过线性电压调节开关保持在预定值。

公开(公告)号：US07679350B2

公开(公告)日：2010-03-16

申请号：US10587785

申请日：2004-02-05

Applicant: Christopher T. Falvey ,  Andrew Wu

Inventor： Christopher T. Falvey ,  Andrew Wu

IPC: G05F1/618

CPC classification number: H02M3/158 ,  H02M2001/0009 ,  H02M2001/0045

Abstract: A switch-mode DC/DC converter (101) and linear low drop out (LIDO) DC/DC regulator (105) are connected in parallel to drive a single load Both regulators share a common voltage reference, feedback network (103), input supply and output such that the regulated voltage is identical during each mode of operation. During heavy loads the switch-mode regulator (107) is in operation and the linear regulator is disabled for the highest efficiency possible. Conversely at light loads the linear regulator is in operation with the switch-mode regulator (107) disabled, also maximizing the efficiency. Each regulator senses load current (131) to automatically transition between the appropriate voltage regulators at fixed load current levels. The presented invention also includes a make before break transition scheme of the voltage regulators (103) to minimize the voltage transients.

Abstract translation: 开关模式DC / DC转换器（101）和线性低压降（LIDO）DC / DC稳压器（105）并联连接以驱动单个负载。两个稳压器共享公共参考电压，反馈网络（103），输入 供应和输出，使得在每个操作模式期间调节电压相同。 在重负载期间，开关模式稳压器（107）处于工作状态，线性稳压器被禁用，以实现最高的效率。 相反，轻负载时，线性稳压器在开关模式稳压器（107）禁用的情况下运行，同时也使效率最大化。 每个调节器感测负载电流（131），以在固定负载电流水平下自适应在适当的电压调节器之间转换。 本发明还包括电压调节器（103）的断开前转换方案以最小化电压瞬变。

公开(公告)号：US20090243568A1

公开(公告)日：2009-10-01

申请号：US12057717

申请日：2008-03-28

Applicant: James H. Nguyen

Inventor： James H. Nguyen

IPC: G05F1/44

CPC classification number: H02M3/1588 ,  G05F1/56 ,  H02M2001/0045 ,  Y02B70/1466

Abstract: A switch-mode synchronous boost voltage regulator is disclosed that includes a boost voltage regulator and an active current modulator. The active current modulator detects a negative current flowing through the high-side switch during a light load condition. When the negative current is detected, the active current modulator is operable to maintain the high-side switch “on” in a linear mode and to limit the negative current to a predetermined current level.

Abstract translation: 公开了一种开关模式同步升压稳压器，其包括升压稳压器和有源电流调制器。 有源电流调制器在轻负载状态期间检测流经高侧开关的负电流。 当检测到负电流时，有源电流调制器可操作地将高侧开关“保持”为线性模式，并将负电流限制在预定的电流水平。

公开(公告)号：US20090184753A1

公开(公告)日：2009-07-23

申请号：US12354486

申请日：2009-01-15

Applicant: Nan Kawashima ,  Fumiyasu Utsunomiya

Inventor： Nan Kawashima ,  Fumiyasu Utsunomiya

IPC: G05F1/10

CPC classification number: H02M3/073 ,  H02M1/32 ,  H02M2001/0045

Abstract: Provided is a charge pump circuit capable of shortening a settling time. When a boosted voltage (Vout) becomes high to be equal to or larger than an overshoot voltage, a transistor (T1) is turned on and an output terminal of the charge pump circuit is discharged. Accordingly, it is easy to reduce the boosted voltage (Vout) after an occurrence of an overshoot, and a period of time in which the boosted voltage (Vout) decreases from a voltage after the occurrence of the overshoot to a desired voltage is shortened, leading to a reduction in a settling time.

Abstract translation: 提供了能够缩短稳定时间的电荷泵电路。 当升高电压（Vout）变高到等于或大于过冲电压时，晶体管（T1）导通，并且电荷泵电路的输出端子被放电。 因此，在发生过冲之后容易降低升压电压（Vout），并且缩短升压电压（Vout）从过冲发生之后的电压降低到期望电压的时间段， 导致建立时间缩短。