公开(公告)号：WO2014116841A2

公开(公告)日：2014-07-31

申请号：PCT/US2014/012768

申请日：2014-01-23

Applicant: QUALCOMM INCORPORATED

Inventor： SHI, Song S. ,  LI, Pengfei ,  MATHE, Lennart Karl-Axel

IPC: H02M3/158

CPC classification number: H03G1/0005 ,  H02M1/088 ,  H02M3/158 ,  H02M2001/0045 ,  H02M2001/0058 ,  Y02B70/1491

Abstract: Techniques for reducing ringing arising from L-C coupling in a boost converter circuit during a transition from a boost ON state to a boost OFF state. In an aspect, during an OFF state of the boost converter circuit, the size of the high-side switch coupling a boost inductor to the load is gradually increased over time. In this manner, the on-resistance of the high-side switch is decreased from a first value to a second (lower) value over time, which advantageously reduces ringing (due to high quality factor or Q) when initially entering the OFF state, while maintaining low conduction losses during the remainder of the OFF state. Further techniques are provided for implementing the high-side switch as a plurality of parallel-coupled transistors.

Abstract translation: 在升压转换电路从升压导通状态转换到升压关断状态时，减少由升压转换器电路中的L-C耦合引起振铃的技术。 在一方面，在升压转换器电路的OFF状态期间，将升压电感器耦合到负载的高侧开关的尺寸随时间逐渐增加。 以这种方式，高边开关的导通电阻随着时间从第一值降低到第二（较低）值，这有利于当初始进入截止状态时减少振铃（由于高品质因数或Q） 同时在关闭状态的剩余期间保持低导通损耗。 提供了用于将高侧开关实现为多个并联耦合晶体管的进一步技术。

公开(公告)号：WO2014116608A2

公开(公告)日：2014-07-31

申请号：PCT/US2014/012393

申请日：2014-01-21

Applicant: QUALCOMM INCORPORATED

Inventor： MATHE, Lennart Karl-Axel ,  LI, Pengfei ,  SHI, Song ,  SHI, Yunfei ,  RUTKOWSKI, Joseph

IPC: H03G1/00

CPC classification number: H03F1/0222 ,  H03F1/0227 ,  H03F3/19 ,  H03F3/21 ,  H03F3/245 ,  H03F2200/102 ,  H03F2200/451

Abstract: Techniques for dynamically generating a headroom voltage for an envelope tracking system. In an aspect, an initial headroom voltage is updated when a signal from a power amplifier (PA) indicates that the PA headroom is insufficient. The initial headroom voltage may be updated to an operating headroom voltage that includes the initial voltage plus a deficiency voltage plus a margin. In this manner, the operating headroom voltage may be dynamically selected to minimize power consumption while still ensuring that the PA is linear. In a further aspect, a specific exemplary embodiment of a headroom voltage generator using a counter is described.

Abstract translation: 动态生成包络跟踪系统的净空电压的技术。 在一个方面，当来自功率放大器（PA）的信号指示PA余量不足时，初始净空电压被更新。 初始净空电压可以被更新为包括初始电压加上缺陷电压加上裕度的运行净空电压。 以这种方式，可以动态选择操作净空电压以最小化功耗，同时仍然确保PA是线性的。 在另一方面，描述了使用计数器的净空电压发生器的具体示例性实施例。

公开(公告)号：WO2014110457A1

公开(公告)日：2014-07-17

申请号：PCT/US2014/011164

申请日：2014-01-10

Applicant: QUALCOMM INCORPORATED

Inventor： SHI, Song S. ,  LI, Pengfei ,  MATHE, Lennart Karl-Axel ,  SHI, Yunfei

IPC: H03F1/02 ,  H02M3/155

CPC classification number: G05F3/02 ,  H02M3/155 ,  H02M3/1582 ,  H02M2001/008 ,  H03F1/0238

Abstract: Techniques for generating a boost clock signal for a boost converter from a buck converter clock signal, wherein the boost clock signal has a limited frequency range. In an aspect, the boost clock signal has a maximum frequency determined by Vbst / T, wherein Vbst represents the difference between a target output voltage and a battery voltage, and T represents a predetermined cycle duration. The boost converter may include a pulse insertion block to limit the minimum frequency of the boost clock signal, and a dynamic blanking / delay block to limit the maximum frequency of the boost clock signal. Further techniques are disclosed for generally implementing the minimum frequency limiting and maximum frequency limiting blocks.

Abstract translation: 用于从降压转换器时钟信号产生用于升压转换器的升压时钟信号的技术，其中所述升压时钟信号具有有限的频率范围。 在一方面，升压时钟信号具有由Vbst / T确定的最大频率，其中Vbst表示目标输出电压和电池电压之间的差，T表示预定的周期持续时间。 升压转换器可以包括用于限制升压时钟信号的最小频率的脉冲插入块以及限制升压时钟信号的最大频率的动态消隐/延迟块。 公开了通常实现最小频率限制和最大频率限制块的其它技术。

公开(公告)号：WO2011150287A2

公开(公告)日：2011-12-01

申请号：PCT/US2011/038252

申请日：2011-05-26

Applicant: QUALCOMM INCORPORATED ,  ROSIK, Raymond, K. ,  LI, Pengfei ,  IRISH, Linda, S.

Inventor： ROSIK, Raymond, K. ,  LI, Pengfei ,  IRISH, Linda, S.

IPC: H02J7/02

CPC classification number: H02J7/0091 ,  H01M10/443 ,  H01M10/486 ,  H02J5/00 ,  H02J7/0031 ,  H02J7/0055 ,  H02J7/02 ,  H02J7/025 ,  H02J50/12 ,  H02J50/20 ,  H04B5/0037 ,  H04B5/0043

Abstract: Exemplary embodiments are directed to an electronic device for enabling a temperature of a battery unit to be sensed with a wired power charger or a wireless power. A device may include a wireless power receiver and a wired charging module operably coupled to the wireless power receiver. The device may also include an interface configured to couple to a battery unit and for selectively enabling one of the wireless power receiver and the wired charging module to determine a temperature of the battery unit.

Abstract translation: 示例性实施例涉及一种能够利用有线电力充电器或无线电力来感测电池单元的温度的电子设备。 设备可以包括无线电力接收器和可操作地耦合到无线电力接收器的有线充电模块。 该设备还可以包括被配置为耦合到电池单元并且用于选择性地使无线电力接收器和有线充电模块中的一个确定电池单元的温度的接口。