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    • 4. 发明申请
    • Starting fluorescent lamps with a voltage fed inverter
    • 使用电压变频器启动荧光灯
    • US20090108764A1
    • 2009-04-30
    • US11981360
    • 2007-10-31
    • Louis Robert Nerone
    • Louis Robert Nerone
    • H05B41/36
    • H05B41/2825
    • A lamp ballast includes an inverter circuit, a resonant circuit, a control circuit, and a startup circuit. When the DC bus reaches its final value, a capacitor in the startup circuit charges to a predetermined voltage, at which point a pulse is sent to start a gate drive circuit in the inverter. Additionally, a gate in the control circuit is initially OFF, allowing full power to the lamp, and a capacitor in the control circuit charges to a predetermined voltage, at which point a gate is turned ON. When the gate is ON, power to the lamp is reduced. The control circuit capacitor is selected so that it charges for a sufficient period to allow the lamp to complete a glow phase of startup before turning on the gate and reducing power as the lamp transitions into an arc phase.
    • 灯镇流器包括逆变器电路,谐振电路,控制电路和启动电路。 当直流母线达到其最终值时,启动电路中的电容器充电到预定电压,此时发送脉冲以启动逆变器中的栅极驱动电路。 此外,控制电路中的栅极初始为OFF,允许对灯充分供电,并且控制电路中的电容器充电到预定电压,此时门导通。 当门打开时,灯的电源减少。 选择控制电路电容器使得其充电足够的时间段,以允许灯在接通门之前完成启动的辉光阶段,并且随着灯转变成电弧相位而降低功率。
    • 5. 发明授权
    • Driver circuit with primary side state estimator for inferred output current feedback sensing
    • 具有初级侧状态估计器的驱动电路,用于推断输出电流反馈感测
    • US08461766B2
    • 2013-06-11
    • US12963752
    • 2010-12-09
    • Louis Robert Nerone
    • Louis Robert Nerone
    • H05B37/02
    • H05B33/0815H02M3/33523H02M2001/0009
    • An LED driver circuit and an isolated DC-DC converter therefor are presented, in which a primary side state estimator circuit is provided for inferred output current sensing for closed loop control of pulse width modulated flyback or buck converters. Specifically, the estimator circuit includes a capacitance having a first terminal coupled to a comparator input of a pulse width modulation controller, and a second terminal coupled to an error input of an error amplifier, and a switching device having a first power terminal coupled to the second terminal of the capacitance, a second power terminal coupled to the circuit ground, and a control input terminal coupled to a drive output of the pulse width modulation controller.
    • 提出了一种LED驱动器电路及其隔离DC-DC转换器,其中提供用于脉宽调制反激或降压转换器的闭环控制的推断输出电流检测的初级侧状态估计器电路。 具体地,估计器电路包括具有耦合到脉冲宽度调制控制器的比较器输入端的第一端子和耦合到误差放大器的误差输入的第二端子的电容器,以及具有耦合到所述第一电源端子的第一电源端子的开关装置 电容的第二端子,耦合到电路地的第二电源端子以及耦合到脉宽调制控制器的驱动输出的控制输入端子。
    • 7. 发明授权
    • Risk of shock protection circuit
    • 防震电路的危险
    • US08018700B2
    • 2011-09-13
    • US12141444
    • 2008-06-18
    • Louis Robert Nerone
    • Louis Robert Nerone
    • H02H3/20H02H9/04H05B41/36
    • H05B41/2851H02H5/12H05B41/2855
    • A risk of shock (ROS) protection circuit is disclosed, which comprises a capacitor that charges whenever there is a voltage between a ground on a lamp ballast and earth ground. If the capacitor exceeds a predetermined threshold voltage, the capacitor causes a gate to shunt current away from a tertiary winding in a control circuit, which in turn reduces impedance reflected by the tertiary winding back on to primary and secondary windings in the ballast circuit. The reduced reflected impedance causes the operating frequency of the ballast to increase, reducing the voltage between the ballast ground and earth ground until it is safe for human contact. In this manner, a human replacing a lamp connected to the ballast can be protected from shock despite a failure to disconnect the power to the lamp ballast prior to lamp replacement.
    • 公开了一种冲击风险(ROS)保护电路,其中包括一个电容器,只要在镇流器和地面上的地面之间存在电压,就会充电。 如果电容器超过预定阈值电压,则电容器使栅极将电流分流离开控制电路中的第三绕组,这继而将由次级绕组反射的阻抗减小到镇流器电路中的初级和次级绕组。 降低的反射阻抗会使镇流器的工作频率增加,从而降低镇流器接地和接地之间的电压,直到人体接触为止。 以这种方式,尽管在更换灯之前未能断开对灯泡镇流器的电力,但是可以保护替换连接到镇流器的灯的人免于冲击。
    • 8. 发明授权
    • Thermal foldback for linear fluorescent lamp ballasts
    • 线性荧光灯镇流器的热折返
    • US07817453B2
    • 2010-10-19
    • US12141545
    • 2008-06-18
    • Louis Robert Nerone
    • Louis Robert Nerone
    • H02M5/16
    • H05B41/2827H05B41/2851
    • A ballast circuit that facilitates providing thermal protection for a fluorescent lamp includes a coupling transformer that couples an inverter circuit to a control circuit. First and second transformer windings in the inverter circuit, and a third transformer winding in the control circuit, are wound around a common ferrite core. The ferrite core has a Curie temperature that approximates a maximum allowable threshold temperature for the lamp. When the temperature of the ballast approaches the Curie temperature of the ferrite core, its permeability, and thus inductance, drops dramatically, causing an increase in operating frequency in the inverter circuit. This increased operating frequency causes a capacitor in the control circuit to charge to a threshold voltage, at which power to the inverter circuit is reduced. The lamp then dims without turning off until the temperature is reduced to an acceptable level.
    • 有助于为荧光灯提供热保护的镇流器电路包括将逆变器电路耦合到控制电路的耦合变压器。 逆变器电路中的第一和第二变压器绕组和控制电路中的第三变​​压器绕组围绕公共铁氧体磁心缠绕。 铁氧体磁芯的居里温度近似于灯的最大允许阈值温度。 当镇流器的温度接近铁氧体磁芯的居里温度时,其磁导率和电感也急剧下降,导致逆变器电路的工作频率增加。 这种增加的工作频率使得控制电路中的电容器充电到降低逆变器电路的电力的阈值电压。 然后灯熄灭,直到温度降低到可接受的水平。
    • 9. 发明申请
    • HIGH FREQUENCY HIGH INTENSITY DISCHARGE BALLAST
    • 高频高强度放电压力
    • US20090153067A1
    • 2009-06-18
    • US11955849
    • 2007-12-13
    • Louis Robert Nerone
    • Louis Robert Nerone
    • H05B37/02
    • H05B41/2825H05B41/2828Y02B20/185
    • A ballast with self-oscillating inverter and a high-voltage multiplier circuit is disclosed for providing a DC start mechanism for starting an HID lamp. The high voltage multiplier ignites the lamp using direct current (DC) voltage. This results in low component stresses and lower output voltages than can be realized either by pulse starting or resonant starting techniques. DC starting reduces an output voltage required to start the HID lamp, and can be applied continuously without damaging the inverter. Moreover, the inverter, in self-oscillating mode, is compact while able to operate the HID lamp at frequencies well in excess of 1 MHz. The self-oscillating inverter can also be employed to regulate lamp power.
    • 公开了一种具有自振荡反相器和高压倍增器电路的镇流器,用于提供用于启动HID灯的DC启动机构。 高电压倍增器使用直流(DC)电压点燃灯。 这导致低的分量应力和较低的输出电压,可以通过脉冲启动或共振启动技术实现。 直流启动减少了启动HID灯所需的输出电压,可以连续施加而不会损坏变频器。 此外,自振荡模式下的逆变器是紧凑的,同时能够以超过1MHz的频率操作HID灯。 自振荡逆变器也可用于调节灯泡功率。
    • 10. 发明申请
    • RISK OF SHOCK PROTECTION CIRCUIT
    • 冲击保护电路的风险
    • US20090059448A1
    • 2009-03-05
    • US12141444
    • 2008-06-18
    • Louis Robert Nerone
    • Louis Robert Nerone
    • H02H5/00
    • H05B41/2851H02H5/12H05B41/2855
    • A risk of shock (ROS) protection circuit is disclosed, which comprises a capacitor that charges whenever there is a voltage between a ground on a lamp ballast and earth ground. If the capacitor exceeds a predetermined threshold voltage, the capacitor causes a gate to shunt current away from a tertiary winding in a control circuit, which in turn reduces impedance reflected by the tertiary winding back on to primary and secondary windings in the ballast circuit. The reduced reflected impedance causes the operating frequency of the ballast to increase, reducing the voltage between the ballast ground and earth ground until it is safe for human contact. In this manner, a human replacing a lamp connected to the ballast can be protected from shock despite a failure to disconnect the power to the lamp ballast prior to lamp replacement.
    • 公开了一种冲击风险(ROS)保护电路,其中包括一个电容器,只要在镇流器和地面上的地面之间存在电压,就会充电。 如果电容器超过预定阈值电压,则电容器使栅极将电流分流离开控制电路中的第三绕组,这继而将由次级绕组反射的阻抗减小到镇流器电路中的初级和次级绕组。 降低的反射阻抗会使镇流器的工作频率增加,从而降低镇流器接地和接地之间的电压,直到人体接触为止。 以这种方式,尽管在更换灯之前未能断开对灯泡镇流器的电力,但是可以保护替换连接到镇流器的灯的人免于冲击。