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1. 发明授权

US06339315B1 Measuring counter of the state of charge of the powering battery of an electronic appliance 有权
标题翻译：电子设备供电电池的充电状态的计数器
公开(公告)号：US06339315B1
公开(公告)日：2002-01-15
申请号：US09503652
申请日：2000-02-14
申请人： Claudia Castelli , Fabrizio Fraternali , Adalberto Mariani , Alex Pojer
发明人： Claudia Castelli , Fabrizio Fraternali , Adalberto Mariani , Alex Pojer
IPC分类号： H02J700
CPC分类号： G01R31/3606 , G01R31/3648
摘要： A charge counter for monitoring the charge of the battery state of an electronic device includes a sensing circuit of the charge and discharge current of the battery. The sensing circuit includes a differential amplifier having inputs coupled to the terminals of a sensing resistor of the battery current, a resettable integrator of the output signal of the amplifier, a first comparator and a second comparator of the output signal of the integrator generating a logic charge interrupt signal and a logic discharge interrupt signal, respectively. The sensing circuit also includes a switch for discharging the capacitance of the integrator momentarily closed by a logic circuit at every transition of the output signal of one or the other of the first and second comparators. Further, the sensing circuit includes a processor for the interrupts which monitors the state of charge of the battery, a timer for measuring the time elapsing from the start of a new integration ramp and the switching instant of either one of the first and second comparators, and a nonvolatile memory register containing the measure of the time interval of integration of the offset of the differential amplifier up to the switching of either of the first and second comparators.
摘要翻译：用于监视电子设备的电池状态的充电的计费计数器包括电池的充放电电流的感测电路。感测电路包括具有耦合到电池电流的感测电阻器的端子的输入的差分放大器，放大器的输出信号的可复位积分器，积分器的输出信号的第一比较器和第二比较器，其产生逻辑充电中断信号和逻辑放电中断信号。感测电路还包括用于在第一和第二比较器中的一个或另一个的输出信号的每个转变处，由逻辑电路暂时闭合的积分器的电容放电的开关。此外，感测电路包括用于监视电池的充电状态的中断的处理器，用于测量从新的积分斜坡开始经过的时间的定时器和第一和第二比较器中的任一个的切换时刻，以及非易失性存储寄存器，其包含将差分放大器的偏移积分到第一和第二比较器之一的切换的时间间隔的测量值。

2. 发明授权

US06300749B1 Linear voltage regulator with zero mobile compensation 有权
标题翻译：线性稳压器，零移动补偿
公开(公告)号：US06300749B1
公开(公告)日：2001-10-09
申请号：US09563100
申请日：2000-05-02
申请人： Claudia Castelli , Francesco Villa
发明人： Claudia Castelli , Francesco Villa
IPC分类号： G05F140
CPC分类号： G05F1/575
摘要： A method and apparatus to dynamically modify the internal compensation of a low drop out linear voltage regulator is presented. The process involves using zero mobile compensation; when the output pole of the voltage regulator moves, a compensating zero is moved toward higher frequencies. This compensation zero is used to compensate the effect of a second pole in the loop gain. The circuit includes an input stage having an error amplifier. The error amplifier includes a differential stage output coupled to an output terminal of the buffer stage. An output stage of the circuit includes an output transistor having a conduction terminal connected to an output terminal of the voltage regulator, and having a control terminal coupled to the output terminal of the buffer stage. Additionally, a variable compensation network is connected between the differential stage output and a voltage reference. This variable compensation network can include an RC circuit having a resistive transistor. The resistance value of the resistive transistor is modulated according to the output load current of the voltage regulator, thereby changing the location of the compensating zero.
摘要翻译：提出了一种动态修改低压降线性稳压器内部补偿的方法和装置。该过程涉及使用零移动补偿; 当电压调节器的输出极点移动时，补偿零向高频移动。该补偿零用于补偿环路增益中第二极点的影响。电路包括具有误差放大器的输入级。误差放大器包括耦合到缓冲级的输出端的差分级输出。电路的输出级包括输出晶体管，其具有连接到电压调节器的输出端的导通端子，并且具有耦合到缓冲级的输出端子的控制端子。此外，可变补偿网络连接在差分级输出和电压基准之间。该可变补偿网络可以包括具有电阻晶体管的RC电路。电阻晶体管的电阻值根据调压器的输出负载电流进行调制，从而改变补偿零点的位置。

3. 发明授权

US07000122B2 Managing system and synchronization method for a plurality of VRM-type modules 有权
公开(公告)号：US07000122B2
公开(公告)日：2006-02-14
申请号：US09982132
申请日：2001-10-16
申请人： Alessandro Zafarana , Claudia Castelli
发明人： Alessandro Zafarana , Claudia Castelli
IPC分类号： G06F1/26
CPC分类号： G06F1/26 , Y10T307/505 , Y10T307/555
摘要： A managing system manages a plurality of VRMs associated with a plurality of microprocessors and connected in parallel together between first and second voltage references, the VRMs having output terminals connected together and arranged to communicate over a common bus. The managing system includes an error amplifier being input an output voltage signal from the VRM plurality, a reference voltage, and a droop voltage produced through an equivalent droop resistor receiving an output current signal from the VRM plurality and being connected to the common bus. The error amplifier effects a comparison of the input signals to generate a control voltage signal to the VRM plurality. Advantageously, the managing system comprises a controller connected to the equivalent droop resistor.

4. 发明授权

US06628110B2 Voltage/current controller device, particularly for interleaving switching regulators 有权
公开(公告)号：US06628110B2
公开(公告)日：2003-09-30
申请号：US10197237
申请日：2002-07-15
申请人： Alessandro Zafarana , Claudia Castelli
发明人： Alessandro Zafarana , Claudia Castelli
IPC分类号： G05F140
CPC分类号： H02M3/1584 , H02M2001/0009
摘要： A voltage/current controller device, particularly for interleaving switching regulators, comprises: a DC/DC converter having a plurality of modules, with each module including a drive transistor pair connected in series between first and second supply voltage references, a current sensor connected to one transistor in the pair, and a current read circuit connected to the sensor. Advantageously, the read circuit comprises a transconductance amplifier connected across the current sensor to sense a voltage signal related to a load current being applied to each module, the transconductance amplifier reading the voltage signal with the transistor in the conducting state.

5. 发明授权

US06583608B2 Voltage/current controller device, particularly for interleaving switching regulators 有权
公开(公告)号：US06583608B2
公开(公告)日：2003-06-24
申请号：US09955735
申请日：2001-09-18
申请人： Alessandro Zafarana , Claudia Castelli
发明人： Alessandro Zafarana , Claudia Castelli
IPC分类号： G05F140
CPC分类号： H02M3/1584 , H02M2001/0009
摘要： A voltage/current controller device, particularly for interleaving switching regulators, comprises: a DC/DC converter having a plurality of modules, with each module including a drive transistor pair connected in series between first and second supply voltage references, a current sensor connected to one transistor in the pair, and a current read circuit connected to the sensor. Advantageously, the read circuit comprises a transconductance amplifier connected across the current sensor to sense a voltage signal related to a load current being applied to each module, the transconductance amplifier reading the voltage signal with the transistor in the conducting state.

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