公开(公告)号：US09136724B2

公开(公告)日：2015-09-15

申请号：US13107086

申请日：2011-05-13

申请人： Mao Ye ,  Jinrong Qian ,  Suheng Chen ,  Richard Stair

发明人： Mao Ye ,  Jinrong Qian ,  Suheng Chen ,  Richard Stair

IPC分类号： H02J7/00 ,  H02M1/10 ,  H02M3/158 ,  H02M1/32

CPC分类号： H02J7/0063 ,  H02J7/0068 ,  H02J2007/0059 ,  H02M1/10 ,  H02M1/32 ,  H02M3/1582 ,  Y02T90/127 ,  Y10T307/625

摘要： A power supply system includes a rechargeable battery to deliver a supply current to a load and a circuit to limit a discharge current when the rechargeable battery is supplying power to the load. The power supply system may further include an integrator for integrating a discharge voltage representing the discharge current that exceeds a predetermined limit, a pulse-width-modulation (PWM) circuit for producing a control signal having a PWM duty cycle representing the discharge voltage, and a driver circuit for delivering the supply current to said load according to said control signal. In one embodiment, a digital register is used to set the battery discharging current limit, in another embodiment an analog circuit is used to set the battery discharging current limit, and in yet another embodiment or a combination of the digital register and analog circuit is used to set the battery discharging current limit.

摘要翻译： 电源系统包括可充电电池，用于向负载输送电流，并且当可再充电电池向负载供电时，限制放电电流。 供电系统还可以包括用于积分表示超过预定极限的放电电流的放电电压的积分器，用于产生具有表示放电电压的PWM占空比的控制信号的脉冲宽度调制（PWM）电路，以及 驱动电路，用于根据所述控制信号将电源电流传送到所述负载。 在一个实施例中，使用数字寄存器来设置电池放电电流限制，在另一实施例中，使用模拟电路来设置电池放电电流限制，并且在另一个实施例中或者使用数字寄存器和模拟电路的组合 设置电池放电电流限制。

公开(公告)号：US20120139345A1

公开(公告)日：2012-06-07

申请号：US13106773

申请日：2011-05-12

申请人： Mao Ye ,  Richard Stair ,  Suheng Chen ,  Jinrong Qian ,  Qiong M. Li

发明人： Mao Ye ,  Richard Stair ,  Suheng Chen ,  Jinrong Qian ,  Qiong M. Li

IPC分类号： H02J9/04

CPC分类号： H02J7/0063 ,  H02J7/0068 ,  H02J2007/0059 ,  H02M1/10 ,  H02M1/32 ,  H02M3/1582 ,  Y02T90/127 ,  Y10T307/625

摘要： A power supply system and method for operating same. The power supply system is connectable to receive power from an adapter and supply power to a load. The power supply system includes a rechargeable battery, a buck mode circuit, and a boost mode circuit. A switching circuit switches between the buck mode circuit and boost mode circuit for supplying power to the load. If the power required by the load reaches a first predetermined level related to an adapter overload condition for a first predetermined time, the switching circuit disconnects said buck mode circuit from the load and connects the rechargeable battery and the boost mode circuit to said load. The first predetermined level may be established by a first predetermined percent of the current of a dynamic power management level established by the load, which is related to a power level below that which can be provided by the adapter.

摘要翻译： 供电系统及其运行方法。 电源系统可连接，以从适配器接收电力并向负载供电。 电源系统包括可充电电池，降压模式电路和升压模式电路。 开关电路在降压模式电路和升压模式电路之间切换，以向负载供电。 如果负载所需的功率达到与适配器过载状态相关的第一预定时间的第一预定电平，则开关电路将所述降压模式电路与负载断开，并将可再充电电池和升压模式电路连接到所述负载。 可以通过由负载建立的动态功率管理电平的电流的第一预定百分比来建立第一预定电平，其与低于可由适配器提供的功率电平相关联。

公开(公告)号：US20050134220A1

公开(公告)日：2005-06-23

申请号：US10995742

申请日：2004-11-22

申请人： Paul Brohlin ,  Robert Martinez ,  Richard Stair

发明人： Paul Brohlin ,  Robert Martinez ,  Richard Stair

IPC分类号： H02J7/00

CPC分类号： H02J7/0072 ,  H02J7/0052

摘要： A feedback-controlled battery charger circuit (500) provides, alternatively, constant current and constant voltage to a battery (328) being charged. Current and voltage at the charger output (326) are sensed in sensing elements (308) and compared to preset reference values from reference generators for current (330) and voltage (332), thus generating error signals for both current and voltage. These error signals are amplified in separate amplifiers (530, 534); then, depending on battery voltage, one of the amplified error signals is automatically selected by a signal selector (540). The selected error signal is applied to a single compensation amplifier (554) with reactive feedback loop (552, 556); the output of the compensation amplifier with feedback (504) then controls the output current or voltage of the output stage (306). This output stage is a voltage controlled current source. The output of this voltage controlled current source is connected through an output filter (318) and sensing elements (308) to the battery (328) being charged.

摘要翻译： 反馈控制的电池充电器电路（500）可替代地向被充电的电池（328）提供恒定电流和恒定电压。 在感测元件（308）中感测充电器输出端（326）处的电流和电压，并将其与来自参考发生器的预设参考值（对于电流（330）和电压（332）进行比较），从而产生电流和电压两者的误差信号。 这些误差信号在单独的放大器（530,534）中被放大; 那么根据电池电压，一个放大的误差信号由信号选择器（540）自动选择。 选择的误差信号被施加到具有反应反馈回路（552,556）的单个补偿放大器（554）; 具有反馈（504）的补偿放大器的输出然后控制输出级（306）的输出电流或电压。 该输出级是电压控制电流源。 该电压控制电流源的输出端通过输出滤波器（318）和感测元件（308）连接到被充电的电池（328）。

公开(公告)号：US20120139500A1

公开(公告)日：2012-06-07

申请号：US13107086

申请日：2011-05-13

申请人： Mao Ye ,  Jinrong Qian ,  Suheng Chen ,  Richard Stair

发明人： Mao Ye ,  Jinrong Qian ,  Suheng Chen ,  Richard Stair

IPC分类号： H02J7/04

CPC分类号： H02J7/0063 ,  H02J7/0068 ,  H02J2007/0059 ,  H02M1/10 ,  H02M1/32 ,  H02M3/1582 ,  Y02T90/127 ,  Y10T307/625

摘要： A power supply system includes a rechargeable battery to deliver a supply current to a load and a circuit to limit a discharge current when the rechargeable battery is supplying power to the load. The power supply system may further include an integrator for integrating a discharge voltage representing the discharge current that exceeds a predetermined limit, a pulse-width-modulation (PWM) circuit for producing a control signal having a PWM duty cycle representing the discharge voltage, and a driver circuit for delivering the supply current to said load according to said control signal. In one embodiment, a digital register is used to set the battery discharging current limit, in another embodiment an analog circuit is used to set the battery discharging current limit, and in yet another embodiment or a combination of the digital register and analog circuit is used to set the battery discharging current limit.

摘要翻译： 电源系统包括可充电电池，用于向负载输送电流，并且当可再充电电池向负载供电时，限制放电电流。 供电系统还可以包括用于积分表示超过预定极限的放电电流的放电电压的积分器，用于产生具有表示放电电压的PWM占空比的控制信号的脉宽调制（PWM）电路，以及 驱动电路，用于根据所述控制信号将电源电流传送到所述负载。 在一个实施例中，使用数字寄存器来设置电池放电电流限制，在另一实施例中，使用模拟电路来设置电池放电电流限制，并且在另一个实施例中或者使用数字寄存器和模拟电路的组合 设置电池放电电流限制。