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公开(公告)号：US5235501A
公开(公告)日：1993-08-10
申请号：US733168
申请日：1991-07-19
Applicant: Thomas A. Stuart , Keming Chen
Inventor： Thomas A. Stuart , Keming Chen
IPC: H02M3/337 , H03K17/00 , H03K17/0814
CPC classification number: H02M3/3376 , H03K17/08146 , H03K17/08148 , H03K2217/0036
Abstract: A full bridge DC to DC converter which provides zero voltage switching (ZVS) for one leg of the bridge and zero current switching (ZCS) for the other leg of the bridge is described. ZVS is achieved with parallel capacitors, while ZCS is achieved by using the reverse breakdown characteristics of the various diode and switching devices. This technique provides a significant reduction in the switching losses of the switching devices, which allows for higher power and frequency combinations.
Abstract translation: 描述了为桥的一条支路提供零电压开关（ZVS）和桥的另一端的零电流开关（ZCS）的全桥DC到DC转换器。 ZVS采用并联电容实现，而ZCS通过使用各种二极管和开关器件的反向击穿特性来实现。 该技术显着降低了开关器件的开关损耗，这允许更高的功率和频率组合。
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公开(公告)号：US5844399A
公开(公告)日：1998-12-01
申请号：US687810
申请日：1996-07-26
Applicant: Thomas A. Stuart
Inventor： Thomas A. Stuart
CPC classification number: H02J7/022 , H01M10/44 , G05F1/67 , Y10T307/615
Abstract: A battery charger control system and method for maximizing output power to a battery. This is achieved by ensuring operation at either the maximum allowable input current or the thermal limit imposed by the battery charger using an on-line controller. In the invention, the thermal limit is determined by the junction temperatures of the two main IGBT's. Because direct measurement of these temperatures is impractical, they must be calculated by a computer algorithm that uses various on-line measurements. Test results for a 8 kW battery charger indicate reduction in the bulk charging time from conventional battery chargers of about 26% when charging a set of NiFe batteries.
Abstract translation: 一种用于使电池的输出功率最大化的电池充电器控制系统和方法。 这是通过确保在使用在线控制器的电池充电器施加的最大允许输入电流或热限制下进行操作来实现的。 在本发明中，热限制取决于两个主要IGBT的结温。 因为这些温度的直接测量是不切实际的，所以它们必须通过使用各种在线测量的计算机算法来计算。 8kW电池充电器的测试结果表明，当充电一组NiFe电池时，常规电池充电器的批量充电时间将减少约26％。
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3.发明授权
公开(公告)号：US6078165A
公开(公告)日：2000-06-20
申请号：US215488
申请日：1998-12-18
Applicant: Cyrus N. Ashtiani , Thomas A. Stuart
Inventor： Cyrus N. Ashtiani , Thomas A. Stuart
CPC classification number: H02J7/0021 , G01R31/362 , G01R31/3648 , G01R31/3658 , Y02T10/7055
Abstract: An energy management system for monitoring an energy storage device is disclosed. The energy management system includes a plurality of cells forming the energy storage device. Each of the cells includes a line for communicating a voltage signal. A local module is connected to the cells of the energy storage device. The local module has a plurality of inputs for receiving the voltage signals generated by the cells. The local module provides a multiplexed output signal. A processor is provided for receiving the multiplexed output signal from the local module and monitoring the voltage signals produced by the energy storage device.
Abstract translation: 公开了一种用于监视能量存储装置的能量管理系统。 能量管理系统包括形成能量存储装置的多个单元。 每个单元包括用于传送电压信号的线。 本地模块连接到能量存储装置的单元。 本地模块具有多个用于接收由单元产生的电压信号的输入。 本地模块提供多路复用的输出信号。 提供处理器，用于从本地模块接收多路复用的输出信号并监视由能量存储装置产生的电压信号。
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公开(公告)号：US6072301A
公开(公告)日：2000-06-06
申请号：US175627
申请日：1998-10-20
Applicant: Cyrus N. Ashtiani , Thomas A. Stuart
Inventor： Cyrus N. Ashtiani , Thomas A. Stuart
CPC classification number: H01M10/5006 , H01M10/5016 , H01M10/5022 , H01M10/5026
Abstract: A circuit for heating an energy storage device is disclosed. The circuit includes a switching device having a closed state and an open state. The circuit also includes a storage circuit for storing energy. The storage circuit has a resonating frequency. A controller is provided for operating the switching device. In operation, energy is transferred from the energy storage device to the storage circuit while the switching device is in the open state, and returned from the storage circuit to the energy storage device while the switching device is in the closed state. This energy transfer causes warming of the energy storage device.
Abstract translation: 公开了一种用于加热能量存储装置的电路。 该电路包括具有闭合状态和断开状态的开关装置。 电路还包括用于存储能量的存储电路。 存储电路具有谐振频率。 提供用于操作开关装置的控制器。 在操作中，当切换装置处于打开状态时，能量从能量存储装置传送到存储电路，并且在切换装置处于关闭状态时从存储电路返回到能量存储装置。 这种能量传递导致储能装置的升温。
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5.发明授权
公开(公告)号：US5982143A
公开(公告)日：1999-11-09
申请号：US857410
申请日：1997-05-16
Applicant: Thomas A. Stuart
Inventor： Thomas A. Stuart
CPC classification number: H01M10/441 , H02J7/0018 , Y02T10/7055
Abstract: An electronic battery equalization circuit that equalizes the voltages of a plurality of series connected batteries in a battery pack. The current waveform is in the shape of a ramp for providing zero current switching. The transformer has a primary winding circuit and at least one secondary winding circuit. In one embodiment, each secondary winding circuit is connected to a different pair of batteries. The equalizing current is provided to the lowest voltage batteries in one half of the battery pack during one half of the charging cycle. The equalizing current is then provided to the lowest voltage batteries in the other half of the battery pack during the other half of the charging cycle. In another embodiment, each secondary winding circuit is connected to a different single battery. The equalizing current is supplied to a lowest voltage battery in the battery pack during each half of the switching cycle. The electronic battery equalization circuit also includes a feedback control circuit coupled to the primary winding circuit for controlling the current from the equalizing current supply source. In another embodiment, optically coupled switches are connected to a battery voltage monitor to provide equalizing current to the lowest voltage even and odd numbered battery in the battery pack.
Abstract translation: 一种使电池组中的多个串联电池的电压均衡的电子电池均衡电路。 电流波形呈斜坡形状，用于提供零电流切换。 变压器具有初级绕组电路和至少一个次级绕组电路。 在一个实施例中，每个次级绕组电路连接到不同的一对电池。 在充电周期的一半期间，将均衡电流提供给电池组的一半中的最低电压电池。 然后在充电周期的另一半期间，将均衡电流提供给电池组的另一半中的最低电压电池。 在另一个实施例中，每个次级绕组电路连接到不同的单个电池。 在开关周期的每一半期间，均衡电流被提供给电池组中的最低电压电池。 电子电池均衡电路还包括耦合到初级绕组电路的反馈控制电路，用于控制来自均衡电流源的电流。 在另一个实施例中，光耦合开关连接到电池电压监视器，以向电池组中的最低电压偶数和奇数电池提供均衡电流。
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Patent Agency Ranking
公开(公告)号：US4337429A
公开(公告)日：1982-06-29
申请号：US184107
申请日：1980-09-04
Applicant: Thomas A. Stuart
Inventor： Thomas A. Stuart
CPC classification number: H02P23/0077
Abstract: A microprocessor based A.C. motor control circuit which can be used for both open and closed loop control includes a pair of RAMs for storing separate groups of synchronized digital waveforms for driving an A.C. motor. The microprocessor is used to calculate the group of digital waveforms required to maintain a controlled motor parameter at a desired value. One RAM has an output connected to supply the group of digital waveforms stored therein to a motor driver, while the second RAM is connected to receive a new group of digital waveforms which have just been calculated by the microprocessor. Once the new group of waveforms have been loaded into the second RAM, the microprocessor generates control signals to disconnect the output of the first RAM from the motor driver, and to connect the output of the second RAM to supply the newly calculated digital waveforms to the motor driver. The first RAM is then connected to receive the next group of digital waveforms to be calculated by the microprocessor.
Abstract translation: 可用于开环和闭环控制的基于微处理器的交流电动机控制电路包括一对RAM，用于存储用于驱动交流电动机的分离的同步数字波形组。 微处理器用于计算将受控电机参数保持在所需值所需的数字波形组。 一个RAM具有连接的输出端以将存储在其中的一组数字波形提供给电动机驱动器，而第二RAM被连接以接收刚刚由微处理器计算出的新的一组数字波形。 一旦新的波形组被加载到第二RAM中，微处理器产生控制信号以将第一RAM的输出与电动机驱动器断开，并且连接第二RAM的输出以将新计算的数字波形提供给 电机驱动器。 然后连接第一个RAM以接收由微处理器计算的下一组数字波形。
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7.发明授权Electronic circuit for measuring series connected electrochemical cell voltages 有权用于测量串联连接的电化学电池电压的电子电路
公开(公告)号：US6166549A
公开(公告)日：2000-12-26
申请号：US224466
申请日：1998-12-31
Applicant: Cyrus N. Ashtiani , Thomas A. Stuart
Inventor： Cyrus N. Ashtiani , Thomas A. Stuart
IPC: G01R31/36 , G01N27/416
CPC classification number: G01R19/16542
Abstract: An electronic circuit for measuring voltage signals in an energy storage device is disclosed. The electronic circuit includes a plurality of energy storage cells forming the energy storage device. A voltage divider circuit is connected to at least one of the energy storage cells. A current regulating circuit is provided for regulating the current through the voltage divider circuit. A voltage measurement node is associated with the voltage divider circuit for producing a voltage signal which is proportional to the voltage across the energy storage cell.
Abstract translation: 公开了一种用于测量能量存储装置中的电压信号的电子电路。 电子电路包括形成能量存储装置的多个能量存储单元。 分压器电路连接到至少一个能量存储单元。 提供电流调节电路用于调节通过分压器电路的电流。 电压测量节点与分压器电路相关联，用于产生与能量存储单元两端的电压成比例的电压信号。
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公开(公告)号：US5990661A
公开(公告)日：1999-11-23
申请号：US70331
申请日：1998-04-30
Applicant: Cyrus N. Ashtiani , Thomas A. Stuart
Inventor： Cyrus N. Ashtiani , Thomas A. Stuart
CPC classification number: H05B1/0236 , H01M10/615 , H01M10/625 , H01M10/633 , H01M10/637
Abstract: A circuit for heating energy storage devices such as batteries is provided. The circuit includes a pair of switches connected in a half-bridge configuration. Unidirectional current conduction devices are connected in parallel with each switch. A series resonant element for storing energy is connected from the energy storage device to the pair of switches. An energy storage device for intermediate storage of energy is connected in a loop with the series resonant element and one of the switches. The energy storage device which is being heated is connected in a loop with the series resonant element and the other switch. Energy from the heated energy storage device is transferred to the switched network and then recirculated back to the battery. The flow of energy through the battery causes internal power dissipation due to electrical to chemical conversion inefficiencies. The dissipated power causes the internal temperature of the battery to increase. Higher internal temperatures expand the cold temperature operating range and energy capacity utilization of the battery. As disclosed, either fixed frequency or variable frequency modulation schemes may be used to control the network.
Abstract translation: 提供了用于加热蓄电装置如电池的电路。 电路包括以半桥配置连接的一对开关。 单向电流传导器件与每个开关并联连接。 用于存储能量的串联谐振元件从能量存储装置连接到该对开关。 用于中间存储能量的能量存储装置与串联谐振元件和开关之一连接。 被加热的储能装置与串联谐振元件和另一个开关环路连接。 来自加热储能装置的能量被传送到交换网络，然后再循环回电池。 通过电池的能量流动由于电化学转换效率低下而导致内部功率耗散。 耗散功率会导致电池的内部温度升高。 更高的内部温度可以扩大电池的冷温度运行范围和能量利用率。 如所公开的，固定频率或可变频率调制方案可以用于控制网络。
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9.发明授权Circuit with a switch for charging a battery in a battery capacitor circuit 有权具有用于为电池电容器电路中的电池充电的开关的电路公开(公告)号：US07417407B1
公开(公告)日：2008-08-26
申请号：US11249048
申请日：2005-10-12
Applicant: Thomas A. Stuart , Cyrus N. Ashtiani
Inventor： Thomas A. Stuart , Cyrus N. Ashtiani
Abstract: A circuit for charging a battery combined with a capacitor includes a power supply adapted to be connected to the capacitor, and the battery. The circuit includes an electronic switch connected to the power supply. The electronic switch is responsive to switch between a conducting state to allow current and a non-conducting state to prevent current flow. The circuit includes a control device connected to the switch and is operable to generate a control signal to continuously switch the electronic switch between the conducting and non-conducting states to charge the battery.
Abstract translation: 用于对与电容器组合的电池进行充电的电路包括适于连接到电容器的电源和电池。 电路包括连接到电源的电子开关。 电子开关响应于在导通状态之间切换以允许电流和非导通状态以防止电流流动。 电路包括连接到开关的控制装置，并且可操作以产生控制信号，以在导通状态和非导通状态之间连续地切换电子开关，以对电池充电。
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10.发明授权Battery self-warming mechanism using the inverter and the battery main disconnect circuitry 有权电池自升温机构采用逆变器和电池主断路电路公开(公告)号：US06882061B1
公开(公告)日：2005-04-19
申请号：US09224467
申请日：1998-12-31
Applicant: Cyrus N. Ashtiani , Thomas A. Stuart
Inventor： Cyrus N. Ashtiani , Thomas A. Stuart
CPC classification number: H02J7/0063 , B60R16/03 , Y10T307/538
Abstract: An apparatus connected to an energy storage device for powering an electric motor and optionally providing a warming function for the energy storage device is disclosed. The apparatus includes a circuit connected to the electric motor and the energy storage device for generating a current. The apparatus also includes a switching device operably associated with the circuit for selectively directing the current to one of the electric motor and the energy storage device.
Abstract translation: 公开了一种连接到能量存储装置的装置，用于为电动机供电并且可选地为能量存储装置提供加温功能。 该装置包括连接到电动机的电路和用于产生电流的能量存储装置。 该装置还包括可操作地与电路相关联的开关装置，用于选择性地将电流引导到电动机和能量存储装置之一。
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