MOBILE POWER SYSTEM WITH BIDIRECTIONAL AC-DC CONVERTER AND RELATED PLATFORMS AND METHODS

    公开(公告)号:US20200177008A1

    公开(公告)日:2020-06-04

    申请号:US16701517

    申请日:2019-12-03

    Abstract: A mobile power system may include a bidirectional AC-DC converter configured to convert a grid AC signal to a power limited DC charging signal with a threshold level, a battery module configured to provide a DC power signal, and a controller coupled to the battery module and the bidirectional AC-DC converter and configured to selectively switch the bidirectional AC-DC converter between a first state and a second state. The first state may include, when a load power level is less than the threshold level, concurrently charging the battery module using the power limited DC charging signal and delivering the grid AC signal to a load. The second state may include, when the load power level is greater than the threshold level, concurrently converting the DC power signal with the bidirectional AC-DC converter into a battery AC signal for delivery to the load, and delivering the grid AC signal to the load.

    Active thermal control of X-ray tubes
    23.
    发明授权
    Active thermal control of X-ray tubes 有权
    X射线管的主动热控制

    公开(公告)号:US08503615B2

    公开(公告)日:2013-08-06

    申请号:US12915836

    申请日:2010-10-29

    CPC classification number: H05G1/36 H05G1/54

    Abstract: The present embodiments relate to active thermal control of X-ray tubes. In one embodiment, a system includes an X-ray tube having an electron beam target, a rotary bearing supporting the target in rotation, and a coolant flow passage, at least a portion of the coolant flow passage being disposed in the center of the rotary bearing, and the coolant flow passage is configured to receive a coolant. The system also includes a coolant circulating system coupled to the coolant flow passage and configured to circulate the coolant thorough the coolant flow passage, and a control circuit coupled to the coolant circulating system and the rotary bearing, the control circuit being configured to control heat flow between components of the X-ray tube by regulating extraction of heat from the X-ray tube via the coolant and by regulating a rotation rate of the rotary bearing.

    Abstract translation: 本实施例涉及X射线管的主动热控制。 在一个实施例中,系统包括具有电子束目标的X射线管,支撑目标旋转的旋转轴承和冷却剂流动通道,冷却剂流动通道的至少一部分设置在旋转中心 轴承,并且冷却剂流动通道构造成接收冷却剂。 该系统还包括冷却剂循环系统,其耦合到冷却剂流动通道并且构造成使冷却剂循环通过冷却剂流动通道;以及控制电路,其耦合到冷却剂循环系统和旋转轴承,该控制电路被配置为控制热流 通过调节通过冷却剂从X射线管提取热量并通过调节旋转轴承的旋转速度来控制X射线管的部件之间的距离。

    Controlling power supply between a voltage generator, a load and a rechargeable battery
    25.
    发明授权
    Controlling power supply between a voltage generator, a load and a rechargeable battery 有权
    控制电压发生器,负载和可充电电池之间的电源

    公开(公告)号:US07706758B2

    公开(公告)日:2010-04-27

    申请号:US10497426

    申请日:2002-11-21

    CPC classification number: H04L25/03159 H04L2025/03414

    Abstract: In an orthogonal frequency division multiplex communication system, for example a HIPERLAN/2 system, power amplifiers (224) of mobile terminals (4, 6) are switched off when not in use, and then switched on again when a signal transmission is to be made. This conserves power, but introduces a power amplifier transient (315). An access point (2), i.e. a type of base station, compensates for these power amplifier transients (315) using a simple scalar constant gain transient correction, over a full OFDM symbol (or a plurality of OFDM symbols). The correction is updated on an OFDM symbol by symbol basis (or plurality of symbols by plurality of symbols basis).

    Abstract translation: 在正交频分复用通信系统中,例如HIPERLAN / 2系统,移动终端(4,6)的功率放大器(224)在不使用时被关闭,然后当信号传输将被再次接通时, 制作。 这节省了功率,但引入了功率放大器瞬态(315)。 接入点(2),即一种基站,使用简单的标量常数增益瞬态校正,在完整的OFDM符号(或多个OFDM符号)上补偿这些功率放大器瞬变(315)。 在OFDM符号的基础上(或多个符号的多个符号的基础上)更新校正。

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