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1. 发明授权

US06967467B2 Method and apparatus for current delegation to a plurality of loads 有权
标题翻译：用于当前委托给多个负载的方法和装置
公开(公告)号：US06967467B2
公开(公告)日：2005-11-22
申请号：US10646329
申请日：2003-08-22
申请人： Marc B. Riley , Taneka L. Frazier , Martin H. Ramsden
发明人： Marc B. Riley , Taneka L. Frazier , Martin H. Ramsden
IPC分类号： H02J7/00 , H01M10/44 , H01M10/46
CPC分类号： H02J7/0022 , H02J7/0013
摘要： A charging circuit is provided for coupling a power source to a plurality of loads. The circuit includes a controller that continually senses the output voltage of the power source. The controller may also decouple the power source from the loads to measure the open circuit voltage of the power source. Once the open circuit voltage is known, the controller establishes a threshold voltage that is slightly below the open circuit voltage of the power supply. The controller then begins delivering current to one of the loads by way of a current regulator. Whenever the power source voltage is below the threshold voltage, the controller reduces the current flowing through the current regulator. When the power source voltage is above the threshold voltage, the controller increases the current flowing through the current regulator. In so doing, the charging circuit simultaneously charges both loads, thereby reducing overall charge time.
摘要翻译：提供一种用于将电源耦合到多个负载的充电电路。该电路包括连续感测电源的输出电压的控制器。控制器还可以将电源与负载分离以测量电源的开路电压。一旦已知开路电压，控制器建立一个略低于电源开路电压的阈值电压。然后，控制器通过电流调节器开始向一个负载传送电流。无论何时电源电压低于阈值电压，控制器将减少流过电流调节器的电流。当电源电压高于阈值电压时，控制器增加流过电流调节器的电流。这样，充电电路同时对两个负载充电，从而减少总充电时间。

2. 发明授权

US06850040B2 Charge boost battery charging and protection circuit 有权
标题翻译：充电提升电池充电和保护电路
公开(公告)号：US06850040B2
公开(公告)日：2005-02-01
申请号：US10463893
申请日：2003-06-19
申请人： Seng P. Xiong , Martin H. Ramsden , Marc B. Riley
发明人： Seng P. Xiong , Martin H. Ramsden , Marc B. Riley
IPC分类号： H02J7/00
CPC分类号： H02J7/0077
摘要： A circuit and method for charging a rechargeable cell is provided. The circuit includes a voltage regulator coupled serially between a power source and a rechargeable cell. The circuit further comprises a controller capable of both monitoring the power dissipation across the voltage regulator and altering the current flowing through the voltage regulator. When the power dissipation in the voltage regulator exceeds a predetermined threshold, the controller increases the current. Where the power source is a linear transformer, this increase of current will cause the transformer to become loaded. The loading causes the transformer output voltage to fall, thereby reducing the power dissipation in the voltage regulator below the predetermined threshold. If, however, the power dissipation does not fall below the predetermined threshold within a predetermined time following the increase of current, the controller will then reduce the current to a level low enough to cause the power dissipation in the voltage regulator to fall below the predetermined threshold. The circuit and method provide a way to rapidly charge batteries while ensuring that the voltage regulator is not subject to thermal compromise.
摘要翻译：提供一种用于对可再充电电池充电的电路和方法。电路包括串联地耦合在电源和可充电电池之间的电压调节器。该电路还包括控制器，其能够监测跨越电压调节器的功率耗散并改变流过电压调节器的电流。当电压调节器的功耗超过预定阈值时，控制器增加电流。在电源为线性变压器的地方，电流的增加将导致变压器加载。负载导致变压器输出电压下降，从而将电压调节器的功耗降低到低于预定阈值。然而，如果在电流增加之后的预定时间内功率耗散不低于预定阈值，则控制器然后将电流降低到足够低的水平，以使得电压调节器中的功率耗散低于预定值阈。电路和方法提供了一种快速充电电池的方法，同时确保电压调节器不受热损坏。

3. 发明授权

US06828759B1 Circuit for regulating current to multiple batteries in a battery charger 有权
标题翻译：用于将电流调节到电池充电器中的多个电池的电路
公开(公告)号：US06828759B1
公开(公告)日：2004-12-07
申请号：US10439257
申请日：2003-05-15
申请人： Seng P. Xiong , Martin H. Ramsden , Marc B. Riley
发明人： Seng P. Xiong , Martin H. Ramsden , Marc B. Riley
IPC分类号： H01M1046
CPC分类号： H02J7/0013 , H02J7/0052
摘要： A charging circuit for regulating current to a plurality of batteries is provided. The regulation is performed by a single control signal that is optionally scaled by resistor dividers. Switches coupled to the resistor dividers allow a microprocessor to actuate a particular resistor divider, thereby scaling the current flowing through a corresponding battery. As such, a single control signal, like a pulse width modulated signal, may be used to cause different currents to flow to different batteries, thereby leaving other output pins of the microprocessor open for other functions.
摘要翻译：提供了用于调节电流到多个电池的充电电路。该调节由单个控制信号执行，该信号可选地由电阻分压器来缩放。耦合到电阻分压器的开关允许微处理器致动特定的电阻分压器，从而缩放流过相应电池的电流。因此，单个控制信号，如脉冲宽度调制信号，可用于使不同的电流流向不同的电池，从而使微处理器的其他输出引脚打开以用于其他功能。

4. 发明授权

US06998818B2 Charging circuit with two levels of safety 失效
标题翻译：充电电路具有两级安全性
公开(公告)号：US06998818B2
公开(公告)日：2006-02-14
申请号：US10429070
申请日：2003-05-03
申请人： Seng P. Xiong , Martin H. Ramsden , Marc B. Riley
发明人： Seng P. Xiong , Martin H. Ramsden , Marc B. Riley
IPC分类号： H02J7/00
CPC分类号： H02J7/0029
摘要： A battery charging circuit having two levels of safety protection is provided. The circuit is said to have “two levels” of safety because if any one component fails (either as a short circuit or as an open circuit) the remainder of the charging circuit ensures that a rechargeable battery coupled to the circuit will not be overcharged. The circuit includes both hardware and firmware protection components, with a microprocessor providing the firmware protection. Overvoltage protection, voltage regulation and current regulation are provided, along with a microprocessor capable of sensing a plurality of voltages across the circuit. The overvoltage protection, voltage regulator and current regulator each include safety actuation points. In parallel, the microprocessor may isolate a rechargeable battery from the cell if voltage and current minimums and maximums are exceeded. The microprocessor further is able to isolate the battery from the circuit if the power dissipation in the voltage regulator, the current regulator or the overall charging circuit is exceeded, provided the microprocessor has decremented current to a minimum level.
摘要翻译：提供具有两级安全保护的电池充电电路。据说该电路具有“两个等级”的安全性，因为如果任何一个组件发生故障（作为短路或开路），则充电电路的其余部分确保连接到电路的可充电电池不会被过度充电。该电路包括硬件和固件保护组件，微处理器提供固件保护。提供过电压保护，电压调节和电流调节，以及能够感测电路两端的多个电压的微处理器。过压保护，电压调节器和电流调节器均包括安全驱动点。并行地，如果超过电压和电流最小值和最大值，则微处理器可以将可再充电电池与电池隔离。如果超过电压调节器，电流调节器或总体充电电路的功耗，则微处理器还能够将电池与电路隔离，只要微处理器将电流减小到最小电平。

5. 发明授权

US06445159B1 Power sharing method and circuit for simultaneously charging multiple loads 有权
标题翻译：用于同时对多个负载充电的功率共享方法和电路
公开(公告)号：US06445159B1
公开(公告)日：2002-09-03
申请号：US09957953
申请日：2001-09-24
申请人： Martin H. Ramsden
发明人： Martin H. Ramsden
IPC分类号： H02J700
CPC分类号： H02J9/062
摘要： This invention includes a circuit for charging multiple batteries simultaneously. The circuit monitors the amount of current being delivered to a first battery and compares it to a maximum available current. The circuit then delivers the difference to at least a second battery. The circuit includes a current sensing resistor and comparator for actuating a series switch to electrically couple and decouple a second battery depending upon the demands of the first battery. An optional microprocessor can manipulate a reference threshold to allow simultaneous charging of multiple batteries. The invention greatly reduces the time needed to charge a primary and spare battery.
摘要翻译：本发明包括同时对多个电池充电的电路。该电路监测正在传送到第一个电池的电流量，并将其与最大可用电流进行比较。电路然后将差异传递给至少第二电池。该电路包括电流检测电阻器和比较器，用于致动串联开关以根据第一电池的要求电耦合和解耦第二电池。可选的微处理器可以操纵参考阈值，以允许同时对多个电池充电。本发明大大减少了对主电池和备用电池充电所需的时间。

6. 外观设计

USD417189S Travel charger 失效
公开(公告)号：USD417189S
公开(公告)日：1999-11-30
申请号：US95881
申请日：1998-11-01
申请人： Willard F. Amero, Jr. , Martin H. Ramsden , John E. Herrmann
设计人： Willard F. Amero, Jr. , Martin H. Ramsden , John E. Herrmann

7. 发明授权

US06897634B2 Rechargeable battery having charging indicating means 有权
标题翻译：具有充电指示装置的充电电池
公开(公告)号：US06897634B2
公开(公告)日：2005-05-24
申请号：US10122946
申请日：2002-04-13
申请人： Martin H. Ramsden
发明人： Martin H. Ramsden
IPC分类号： H02J7/00 , H02J7/02
CPC分类号： H02J7/0045
摘要： A system for detecting information about rechargeable batteries having standard form factors, e.g. AA, C, D, etc., is disclosed. In one preferred embodiment, the invention includes a battery having a layer of insulating material with selective apertures. A charger is provided that senses the number and placement of the apertures to determine the particular battery configuration. Once the battery configuration is determined, the charger then charges the battery to apply a charging algorithm in accordance with the particular configuration. If a recognized battery configuration is not detectable, the charger does not charge, so as not to compromise the reliability of the battery.
摘要翻译：用于检测关于具有标准形状因子的可再充电电池的信息的系统， AA，C，D等。在一个优选实施例中，本发明包括具有选择性孔的绝缘材料层的电池。提供了一种充电器，其感测孔的数量和位置以确定特定的电池配置。一旦确定了电池配置，充电器然后对电池充电以根据特定配置应用充电算法。如果识别的电池配置无法检测到，充电器不充电，以免损害电池的可靠性。

8. 发明授权

US07088838B2 Speakerphone accessory assembly 有权
标题翻译：扬声器配件
公开(公告)号：US07088838B2
公开(公告)日：2006-08-08
申请号：US10411809
申请日：2003-04-11
申请人： Ryan P. Rye , Martin H. Ramsden
发明人： Ryan P. Rye , Martin H. Ramsden
IPC分类号： H04R1/02 , H05K5/00
CPC分类号： H04R1/2842 , H04M1/03 , H04R9/10
摘要： An acoustic accessory is provided having a loudspeaker and a circuit board disposed therein. An acoustic suspension system is formed within the acoustic accessory by board retention rings disposed within the upper and lower housings of the accessory. The board suspension rings clench the printed circuit board, which includes at least one aperture. Rubber gaskets are coupled to the board retention rings to form an airtight seal. The air mass above the printed circuit board joins with the air mass below the printed circuit board to form a unitary reactance against which the loudspeaker works. The size and number of apertures may be varied in accordance with the acoustic application. Board retention posts optionally seat within notches in the printed circuit board to prevent the printed circuit board from moving laterally. Electrical connections may be made through the printed circuit board into the acoustic chamber, thereby not compromising the airtight seal.
摘要翻译：提供了一种具有扬声器和设置在其中的电路板的声学附件。通过设置在附件的上壳体和下壳体内的板固定环，在声学附件内形成声学悬挂系统。板悬挂环夹紧包括至少一个孔的印刷电路板。橡胶垫圈连接到板保持环以形成气密密封。印刷电路板上方的空气质量与印刷电路板下面的空气块结合形成扬声器工作的整体电抗。孔的尺寸和数量可以根据声学应用而变化。板保持柱可选地位于印刷电路板的凹口内，以防止印刷电路板横向移动。电连接可以通过印刷电路板进入声室，从而不损害气密密封。

9. 发明授权

US06388449B1 Circuit and method for auto-calibration of an active load 有权
标题翻译：有源负载自动校准的电路和方法
公开(公告)号：US06388449B1
公开(公告)日：2002-05-14
申请号：US09818027
申请日：2001-03-27
申请人： Martin H. Ramsden
发明人： Martin H. Ramsden
IPC分类号： G10N37416
CPC分类号： H03M1/1009 , H03M1/12
摘要： This invention includes an auto-calibration circuit for eliminating errors due to resistor tolerances in measurement circuits. In many instances, an analog to digital (A/D) converter is called upon to measure signals that have voltages higher than the operation voltage of the converter. As a result, resistive dividers are employed to step the voltage down to an acceptable level. One preferred embodiment of this invention includes an auto-calibration circuit comprising a comparator, transistor and voltage reference. When the auto-calibration circuit is enabled, the auto-calibration circuit switches in a reference voltage. The firmware embedded in a control device, like a microprocessor for example, is then able to extrapolate the tolerance error associated with the resistive divider.
摘要翻译：本发明包括用于消除测量电路中的电阻容差引起的误差的自动校准电路。在许多情况下，需要模拟（A / D）转换器来测量具有高于转换器工作电压的电压的信号。结果，使用电阻分压器将电压降低到可接受的水平。本发明的一个优选实施例包括自动校准电路，其包括比较器，晶体管和电压基准。当自动校准电路使能时，自动校准电路切换参考电压。嵌入在控制设备中的固件（例如微处理器）然后能够推断与电阻分压器相关联的公差误差。

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