Neon power supply with midpoint ground detection and diagnostic functions
    1.
    发明授权
    Neon power supply with midpoint ground detection and diagnostic functions 失效
    霓虹灯电源具有中点接地检测和诊断功能

    公开(公告)号:US6040778A

    公开(公告)日:2000-03-21

    申请号:US63475

    申请日:1998-04-20

    CPC分类号: H05B41/2851 G01R31/025

    摘要: A power supply circuit detects ground fault paths, and miswiring of the load, using a test mode in which electrical power is applied to only one power output terminal of the power supply relative to the ground terminal, while substantially no electrical power is applied to the second power output terminal relative to the ground terminal. If application of power during the test mode causes substantial current flow through ground, then there is a ground fault path, or an incorrect connection between the midpoint of the load and ground. The power supply further includes unique features for signaling the presence and kind of fault it has detected; the power supply is capable of distinguishing between ground faults in at least two different locations, and when a fault is detected, the power supply signals the presence of the fault and its location, e.g., by timed blinking of the connected discharge light. These features are enhanced by a diagnostic analyzer for connection to the power supply. The diagnostic analyzer monitors power flow from the output terminals of the diagnostic analyzer to the input terminals of the power supply, and evaluates the power flow to identify power flow patterns indicative of a fault and the kind of fault. The power supply also reduces inrush current by disconnecting and reconnecting power to the transformer primary winding in opposite half-cycles of the alternating current electrical power.

    摘要翻译: 电源电路使用对电源相对于接地端子的仅一个电力输出端子施加电力的测试模式来检测接地故障路径和负载接线,同时基本上没有电力施加到 第二功率输出端子相对于接地端子。 如果在测试模式下施加电源导致大量电流流经地面,则存在接地故障路径,或负载中点与地之间的不正确连接。 电源还包括用于发信号通知检测到的故障的存在和种类的独特功能; 电源能够区分至少两个不同位置的接地故障,并且当检测到故障时,电源例如通过连接的放电灯的定时闪烁来指示故障的存在及其位置。 这些功能由诊断分析仪增强,用于连接电源。 诊断分析仪监视从诊断分析仪的输出端子到电源输入端的功率流,并评估功率流,以识别指示故障和故障种类的功率流模式。 电源还通过在交流电力的相反的半个周期内断开和重新连接变压器初级绕组的电源来降低浪涌电流。

    Diagnostic functions for power supply
    2.
    发明授权
    Diagnostic functions for power supply 有权
    电源诊断功能

    公开(公告)号:US06366208B1

    公开(公告)日:2002-04-02

    申请号:US09453426

    申请日:1999-12-02

    IPC分类号: G08B2100

    CPC分类号: H05B41/2851 G01R31/025

    摘要: A power supply circuit detects ground fault paths, and miswiring of the load, using a test mode in which electrical power is applied to only one power output terminal of the power supply relative to the ground terminal, while substantially no electrical power is applied to the second power output terminal relative to the ground terminal. If application of power during the test mode causes substantial current flow through ground, then there is a ground fault path, or an incorrect connection between the midpoint of the load and ground. The power supply further includes unique features for signaling the presence and kind of fault it has detected; the power supply is capable of distinguishing between ground faults in at least two different locations, and when a fault is detected, the power supply signals the presence of the fault and its location, e.g., by timed blinking of the connected discharge light. These features are enhanced by a diagnostic analyzer for connection to the power supply. The diagnostic analyzer monitors power flow from the output terminals of the diagnostic analyzer to the input terminals of the power supply, and evaluates the power flow to identify power flow patterns indicative of a fault and the kind of fault. The power supply also reduces inrush current by disconnecting and reconnecting power to the transformer primary winding in opposite half-cycles of the alternating current electrical power.

    摘要翻译: 电源电路使用对电源相对于接地端子的仅一个电力输出端子施加电力的测试模式来检测接地故障路径和负载接线,同时基本上没有电力施加到 第二功率输出端子相对于接地端子。 如果在测试模式下施加电源导致大量电流流经地面,则存在接地故障路径,或负载中点与地之间的不正确连接。 电源还包括用于发信号通知检测到的故障的存在和种类的独特功能; 电源能够区分至少两个不同位置的接地故障,并且当检测到故障时,电源例如通过连接的放电灯的定时闪烁来指示故障的存在及其位置。 这些功能由诊断分析仪增强,用于连接电源。 诊断分析仪监视从诊断分析仪的输出端子到电源输入端的功率流,并评估功率流,以识别指示故障和故障种类的功率流模式。 电源还通过在交流电力的相反的半个周期内断开和重新连接变压器初级绕组的电源来降低浪涌电流。

    Method and apparatus for charging a lead acid battery
    3.
    发明授权
    Method and apparatus for charging a lead acid battery 失效
    铅酸电池充电方法和装置

    公开(公告)号:US06414465B1

    公开(公告)日:2002-07-02

    申请号:US09887309

    申请日:2001-06-22

    IPC分类号: H01M1046

    CPC分类号: H01M10/48 H01M2/20 H01M10/342

    摘要: A battery charger for a lead acid battery having a power supply with an input connected to an AC signal and an output connected to the battery. The power supply provides a charge current to the battery. A clock connected to the AC signal provides clock pulses having transitions synchronized with zero crossings of the AC signal. A voltage monitor connected to the battery detects a battery voltage substantially simultaneously with a zero value of the charge current. A charge mode control is connected to the clock and the voltage monitor for commanding different battery charge currents. The voltage monitor includes a temperature compensation circuit. The battery charger includes a display module that can be placed at a location remote from the battery charger and convenient to the user. The battery charger executes a battery charge cycle in which absorption and equalization charge times are variable and automatically set as a function of the state of discharge of the battery, that is, as a function of the bulk charge time. During an initial evaluation period, the battery is tested for a deep discharge condition, and if detected, a desulfation charge current is automatically applied for a time period, for example, two hours.

    摘要翻译: 一种用于铅酸电池的电池充电器,其具有电源,其输入端连接到AC信号,并且输出端连接到电池。 电源为电池提供充电电流。 连接到AC信号的时钟提供具有与AC信号的过零点同步的转换的时钟脉冲。 连接到电池的电压监视器基本上与充电电流的零值同时检测电池电压。 充电模式控制连接到时钟和电压监视器,用于指示不同的电池充电电流。 电压监视器包括温度补偿电路。 电池充电器包括可以放置在远离电池充电器的位置并且对用户方便的显示模块。 电池充电器执行电池充电循环,其中吸收和均衡充电时间是可变的,并且根据电池的放电状态,即作为批量充电时间的函数自动设置。 在初始评估期间,对电池进行深度放电条件测试,如果检测到,则将自动施加脱硫充电电流一段时间,例如两小时。