Charge equalization of series connected cells or batteries
    1.
    发明授权
    Charge equalization of series connected cells or batteries 失效
    串联连接的电池或电池的充电均衡

    公开(公告)号:US5594320A

    公开(公告)日:1997-01-14

    申请号:US303703

    申请日:1994-09-09

    IPC分类号: H02J7/00

    CPC分类号: H02J7/0018

    摘要: An equalizer for equalizing the charge on several series-connected cells includes a transformer having plural windings on a core corresponding to the number of cells. The windings are tightly coupled to one another. A switching device such as a MOSFET is connected to each of the windings, and a winding and a switching device are connected across each of the cells. The switching devices are simultaneously switched at a relatively high frequency, e.g., 20 Hz, and the voltage across the highest charged cell appears across each of the windings when the switching devices are on. Current flows from the most highly charged cell to a cell or to cells of lower charge, with the charging current being proportional to the difference in voltage between the highest charged cell and each of the lesser charged cells. Equalization is carried out with very little power consumption by the equalizer, allowing charging to take place in a rapid manner.

    摘要翻译: 用于均衡几个串联电池的电荷的均衡器包括在核心上具有与单元数相对应的多个绕组的变压器。 绕组彼此紧密耦合。 每个绕组连接诸如MOSFET的开关装置,并且绕组和开关装置连接在每个电池单元之间。 开关器件以相对较高的频率(例如20Hz)同时切换,并且当开关器件导通时,跨越最高充电单元的电压出现在每个绕组上。 电流从最高电荷的电池流向电池或较低电荷的电池,充电电流与最高充电电池和每个较小充电电池之间的电压差成比例。 通过均衡器进行均衡化,功率消耗非常小,允许充电以快速方式进行。

    Surge Voltage Protection Circuit for Direct Line Operated Induction Heaters and Method of Operation

    公开(公告)号:US20170310098A1

    公开(公告)日:2017-10-26

    申请号:US15133899

    申请日:2016-04-20

    申请人: David R. Pacholok

    发明人: David R. Pacholok

    IPC分类号: H02H3/20 H05B6/02

    摘要: An apparatus and method for greatly increasing power line surge/transient resistance of power semiconductors in inductive heating equipment, in which a sample of the instantaneous line voltage or its rectified equivalent is applied to a comparator input terminal, and a reference voltage corresponding to a predetermined surge shutdown voltage is applied to an opposite comparator input, such that comparator output changes state in response to the predetermined surge shutdown voltage, and is functionally connected to gate drive circuitry to disable gate drive circuitry for the duration of the surge/transient.

    Eddy current/hysteretic heater apparatus
    3.
    发明授权
    Eddy current/hysteretic heater apparatus 有权
    涡流/迟滞加热器

    公开(公告)号:US06670590B1

    公开(公告)日:2003-12-30

    申请号:US10171224

    申请日:2002-06-13

    IPC分类号: H05B614

    CPC分类号: H05B6/105 H05B6/101

    摘要: The method and apparatus are for use in automotive vehicle repair, both mechanical and body. The apparatus includes at least an eddy current/hysteretic circuit and at least one applicator functionally engaged to the circuit for obtaining a desired result when the applicator is placed into contact with structure of the vehicle to be affected by heating thereof.

    摘要翻译: 该方法和装置用于机动车辆修理,机械和车身。 该设备包括至少一个涡流/滞后电路和至少一个施加器,其功能地接合到电路,用于当施加器与待加热的车辆的结构接触时获得期望的结果。

    Soft-transition FSK dimmer for gaseous luminous tube lights
    4.
    发明授权
    Soft-transition FSK dimmer for gaseous luminous tube lights 失效
    软转换FSK调光器用于气体发光管灯

    公开(公告)号:US5668444A

    公开(公告)日:1997-09-16

    申请号:US261405

    申请日:1994-06-17

    申请人: David R. Pacholok

    发明人: David R. Pacholok

    摘要: A dimmer oscillator for a high frequency luminous tube power supply including a frequency shiftable high frequency oscillator, a variable duty cycle low frequency oscillator operatively connected to the high frequency oscillator for controlling the high frequency oscillator between a first normal output operating frequency and a second higher frequency. A low pass filter within the high frequency supply whereby the supply output to a luminous tube load is reduced, when the oscillator is operating at the second higher frequency, to a low intensity ionization maintenance level. An integrator between the low and high frequency oscillators whereby the transition between the first nominal and second higher operating frequencies is smoothed to reduce acoustic noise and false GFI and OVP triggering. A frequency control diode between the low and high frequency oscillators to limit the lower frequency excursion, and to maintain oscillation of, the high frequency oscillator.

    摘要翻译: 一种用于高频发光管电源的调光振荡器,包括可变频高频振荡器,可操作地连接到高频振荡器的可变占空比低频振荡器,用于在第一正常输出工作频率和第二高频振荡器之间控制高频振荡器 频率。 高频电源内的低通滤波器,当振荡器在第二较高频率下操作时,降低对发光管负载的电力输出至低强度电离维持水平。 在低频振荡器和高频振荡器之间的积分器,由此平滑第一标称和第二较高工作频率之间的转换,以减少声学噪声和假GFI和OVP触发。 低频和高频振荡器之间的频率控制二极管限制了高频振荡器的较低频率偏移,并保持振荡。

    Integral hand-held induction heating tool
    5.
    发明授权
    Integral hand-held induction heating tool 有权
    一体式手持感应加热工具

    公开(公告)号:US06710314B2

    公开(公告)日:2004-03-23

    申请号:US10302692

    申请日:2002-11-22

    IPC分类号: H05B610

    CPC分类号: B23K13/01

    摘要: An apparatus and system for using magnetic fields to heat magnetically susceptible materials within and/or adjacent to adhesives, resins, or composites so as to reversibly or irreversibly bond, bind, or fasten opaque or non-opaque solid materials to one another. The system makes use of the effect that alternating magnetic fields induce eddy currents and generate heat within susceptors, and the effect that alternating magnetic fields additionally induce magnetic hysteresis that occurs in magnetic materials and thereby generate heat. An induction heating tool is used to emit the magnetic field at its work coil, and an electronic controller measures the energy being used by a power converter that generates the alternating current driving the work coil which creates the magnetic field. The distance between the susceptor and work coil is repeatedly analyzed based upon the power converter's input energy, and the work coil is driven at a repeatedly corrected power level during the heating cycle. Once a sufficient accumulated energy has been delivered to the susceptor, the magnetic field is turned off automatically by the tool, thus preventing overheating of the susceptor.

    摘要翻译: 一种用于使用磁场来加热粘合剂,树脂或复合材料内部和/或与粘合剂,树脂或复合材料相邻的磁敏材料以便可逆地或不可逆地将不透明或非不透明固体材料彼此粘合,粘合或固定的装置和系统。 该系统利用交变磁场引起涡流并在感受体内产生热量的效果,以及交变磁场另外引起在磁性材料中发生磁滞的结果,从而产生热量。 使用感应加热工具在其工作线圈处发射磁场,并且电子控制器测量产生驱动工作线圈的产生磁场的交流电的功率转换器所使用的能量。 基于功率转换器的输入能量重复地分析基座和工作线圈之间的距离,并且在加热循环期间以工作线圈被重复校正的功率电平驱动。 一旦足够的积累的能量被传送到基座,磁场就被工具自动关闭,从而防止基座过热。

    Apparatus for detecting luminous tube and power supply faults where
ground fault currents may be absent
    6.
    发明授权
    Apparatus for detecting luminous tube and power supply faults where ground fault currents may be absent 失效
    用于检测发光管和电源故障的装置,其中可能不存在接地故障电流

    公开(公告)号:US5805399A

    公开(公告)日:1998-09-08

    申请号:US709276

    申请日:1996-09-06

    申请人: David R. Pacholok

    发明人: David R. Pacholok

    IPC分类号: H05B41/285 H02H9/00

    CPC分类号: H05B41/2851 H05B41/2855

    摘要: Apparatus for detecting series arcs and output load faults in high frequency luminous tube power supplies and ballasts including wideband ringing and detector circuits for collecting the intense high frequency, pre-plasma noise energy associated with the initial avalanche phase of high frequency arc formation and a transient suppressor for delaying the triggering of power supply shut-down for up to the duration of the arc avalanche phase. Plural detectors for increased sensitivity and reliability over a variety of arc locations may be employed. Dual purpose detector input probes serve as over-voltage corona generators.

    摘要翻译: 用于检测高频发光管电源和镇流器中的串联电弧和输出负载故障的装置,包括宽带振铃和检测器电路,用于收集与高频电弧形成的初始雪崩相相关的强烈的高频,等离子体等离子体噪声能量和瞬态 抑制器用于延迟触发电源关闭直到电弧雪崩阶段的持续时间。 可以使用用于在各种电弧位置增加灵敏度和可靠性的多个检测器。 双用途检测器输入探头用作过电压电晕发生器。

    Vacuum testing method and apparatus
    7.
    发明授权
    Vacuum testing method and apparatus 失效
    真空试验方法及装置

    公开(公告)号:US4546319A

    公开(公告)日:1985-10-08

    申请号:US548656

    申请日:1983-11-04

    IPC分类号: G01L21/34 G01M3/18

    CPC分类号: G01L21/34 G01M3/186

    摘要: A process and apparatus for testing the degree of vacuum in an evacuated vial. For testing the vacuum, a vial is located at a source of high voltage radio frequency power and the power is applied to the vial. A momentary intense flash of light is applied to the vial to cause ionization of the gas within the vial and the ionization current of the ionized gas within the vial is then sensed and a representation of the value of the ionization current is generated. The representation of the ionized current is compared with a minimum acceptable current value which is indicative of a predetermined minimum allowable vacuum within the vial. The vial is rejected if the measured ionization current is less than the minimum acceptable current value. In one embodiment, the apparatus includes a single station for testing evacuated vials, one at a time. In another embodiment of the apparatus, a plurality of vials are conveyed in a carousel through a series of testing stations. Acceptable vials continue to a downstream location, while unacceptable vials are rejected before release from the carousel.

    摘要翻译: 用于测试抽真空小瓶中的真空度的方法和装置。 为了测试真空,一个小瓶位于高压射频电源上,并将电源施加到小瓶上。 向小瓶施加瞬时强烈的闪光,以使小瓶内的气体电离,然后感测小瓶内的电离气体的电离电流,并产生电离电流值的表示。 将电离电流的表示与指示小瓶内预定的最小允许真空的最小可接受电流值进行比较。 如果测量的电离电流小于最小可接受电流值,则小瓶被拒绝。 在一个实施例中,该装置包括用于一次一个地测试抽空小瓶的单个站。 在该设备的另一个实施例中,多个小瓶通过一系列测试台在转盘中传送。 可接受的小瓶继续到下游位置,而不可接受的小瓶在从旋转木马释放之前被拒绝。

    Ni-Cad battery charger circuit
    9.
    发明授权
    Ni-Cad battery charger circuit 失效
    镍镉电池充电器电路

    公开(公告)号:US5196780A

    公开(公告)日:1993-03-23

    申请号:US757237

    申请日:1991-09-10

    申请人: David R. Pacholok

    发明人: David R. Pacholok

    IPC分类号: H02J7/00 H02J7/02

    CPC分类号: H02J7/027 H02J7/0081

    摘要: An analog, low-cost nickel-cadmium battery charger including a fast charging current circuit and a slow charging current circuit, both of which are controlled by a comparator circuit which compares the characteristic negative change in battery voltage at the onset of overcharge to the stored charging voltage and changes the charging current from fast charging to slow charging when the battery voltage begins to decrease at the onset of overcharge, a timer that shuts off the fast charging current circuit after a predetermined period of time and reverts to the slow charging current circuit, and a thermostat that checks the temperature of the battery and, in the event of overheating or cooling below a predetermined temperature, stops all charging of the battery.

    摘要翻译: 一种模拟低成本的镍镉电池充电器,其包括快速充电电流电路和慢充电电流电路,两者都由比较器电路控制,比较电路将过充电开始时的电池电压的特征负变化与存储的 充电电压,并且当充电开始时电池电压开始降低时,将充电电流从快速充电改变为慢充电;定时器,其在预定时间段之后切断快速充电电流电路并恢复到慢充电电流电路 以及检查电池的温度的恒温器,并且在过热或冷却低于预定温度的情况下,停止对电池的所有充电。

    Power supply for gas discharge devices
    10.
    再颁专利
    Power supply for gas discharge devices 失效
    气体放电装置的电源

    公开(公告)号:USRE32904E

    公开(公告)日:1989-04-11

    申请号:US204421

    申请日:1988-06-09

    申请人: David R. Pacholok

    发明人: David R. Pacholok

    IPC分类号: H05B41/285

    CPC分类号: H05B41/2851

    摘要: A low current, high voltage power supply for gas discharge devices, such as neon tubes. The power supply has a free-running oscillator which generates a high frequency voltage signal which drives a light-weight, compact transformer. The oscillator has a power transistor drive, and a second transistor is used to remove the base drive of the power transistor to render it non-conductive. The second transistor also provides a path for rapid evacuation of the charge carriers stored in the base-emitter junction of the power transistor to rapidly render it non-conductive when the second transistor is energized. A safety bypass circuit is provided should a fault occur with the gas discharge device.