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    • 2. 发明授权
    • Ballast circuit for high intensity discharge (HID) lamps
    • 用于高强度放电(HID)灯的镇流器电路
    • US4199710A
    • 1980-04-22
    • US11348
    • 1979-02-12
    • William C. Knoll
    • William C. Knoll
    • H05B41/24H05B41/231H05B41/292H05B41/36
    • H05B41/231H05B41/2925Y10S315/05Y10S315/07
    • An electronic ballast circuit includes a directly driven high frequency inverter circuit with a series resonant output circuit coupled to a load circuit having a high intensity discharge (HID) lamp and to a drive circuit dependent upon current flow in the load circuit. A starting circuit for the high frequency inverter is coupled to a DC source and to a charge storage and isolating circuit and provides initial energization to the high frequency inverter circuit. Also, a lamp starting circuit initiates increased conductivity of the high frequency inverter circuit which causes development of energy sufficient to "fire" an HID lamp whereupon a disablement circuit essentially removes the lamp starting circuit from the operational circuitry.
    • 电子镇流器电路包括直接驱动的高频逆变器电路,其具有耦合到具有高强度放电(HID)灯的负载电路的串联谐振输出电路和取决于负载电路中的电流的驱动电路。 用于高频逆变器的启动电路耦合到DC源和电荷存储和隔离电路,并向高频逆变器电路提供初始通电。 此外,灯起动电路启动高频逆变器电路的增加的电导率,其引起足以“发射”HID灯的能量的发展,因而禁用电路基本上从操作电路去除灯启动电路。
    • 3. 发明授权
    • Direct drive ballast circuit
    • 直接驱动镇流器电路
    • US4188660A
    • 1980-02-12
    • US908044
    • 1978-05-22
    • William C. Knoll
    • William C. Knoll
    • H05B41/24H02M7/5383H02M7/53846H02M7/53862H05B41/28H02M5/293
    • H02M7/53862H02M7/53846H05B41/28Y10S315/05Y10S315/07
    • A direct drive electronic ballast circuit suitable for a fluorescent lamp load includes a high frequency oscillator inverter circuit having a tuned output circuit coupled to a load and to a drive circuit series connected to the load and dependent upon current flow therein. The high frequency oscillator inverter circuit is also coupled to a pulsed DC potential source which is shunted by a charge storage and isolating circuit energized by a feedback rectifier circuit which supplies energy whenever the potential from the pulsed DC potential source decreases below a given reference level. A relaxation type oscillator is coupled to the high frequency oscillator inverter circuit and provides a starting capability therefore.
    • 适用于荧光灯负载的直接驱动电子镇流器电路包括具有耦合到负载的调谐输出电路和连接到负载并依赖于其中的电流流动的驱动电路串联的高频振荡器反相器电路。 高频振荡器反相器电路还耦合到脉冲DC电位源,该脉冲DC电源由电荷存储和隔离电路分流,电荷存储和隔离电路由反馈整流电路激励,每当来自脉冲DC电位源的电位降低到给定参考电平以下时,该反馈整流电路就会提供能量。 松弛型振荡器耦合到高频振荡器反相器电路,从而提供启动能力。
    • 5. 发明授权
    • Output circuit for an electronic ballast system
    • 电子镇流器系统的输出电路
    • US4532456A
    • 1985-07-30
    • US646479
    • 1984-08-31
    • William C. KnollDavid L. Bay
    • William C. KnollDavid L. Bay
    • H02M7/5383H05B41/282H05B37/02
    • H05B41/2825H02M7/53832Y10S315/07
    • The above and other objects, advantages and capabilities are achieved in one aspect of the invention by an output circuit for an electronic ballast system. The circuit includes N sets of output connections for accepting N lamps. The lamps are driven by an output autotransformer coupled to the lamps through a feedback winding that is used to apply a feedback signal to an inverter drive circuit. Capacitive impedances are coupled across the lamps so that the capacitances, the lamp filaments, the feedback winding, and the output transformer form a circuit loop. The capacitances are chosen to have an impedance, at the inverter operating frequency, less than the pre-ignition impedance of the lamps and greater than the post-ignition impedance.
    • 通过电子镇流器系统的输出电路在本发明的一个方面中实现了上述和其它目的,优点和能力。 该电路包括N组用于接收N个灯的输出连接。 这些灯由耦合到灯的输出自耦变压器通过用于将反馈信号施加到逆变器驱动电路的反馈绕组驱动。 电容阻抗耦合在灯之间,使得电容,灯丝,反馈绕组和输出变压器形成电路回路。 电容被选择为具有在逆变器工作频率下的阻抗小于灯的预先点火阻抗并且大于后点火阻抗。
    • 6. 发明授权
    • Dimming circuit for an electronic ballast
    • 电子镇流器的调光电路
    • US4353009A
    • 1982-10-05
    • US218311
    • 1980-12-19
    • William C. Knoll
    • William C. Knoll
    • H05B41/282H05B41/29
    • H05B41/2827Y10S315/04
    • A dimmer circuit for an inverter-driven electronic ballast system. The ballast includes an output transformer having a primary winding coupled to the inverter output and a secondary winding adapted to be coupled to a lamp filament winding for supplying power to the filament. An interstage transformer has a primary winding adapted to be coupled to a lamp filament and a secondary winding coupled to an inverter input for applying a feedback signal derived from the filament current at that input. The dimmer circuit is in the form of a feedback loop that includes a winding on the primary of the output transformer, a winding on the primary of the interstage transformer, and a variable impedance coupling those windings. Varying the impedance necessarily varies the total feedback loop impedance and therefore the amount of feedback applied at the inverter output and, inversely, the power supplied to the lamp filament.
    • 用于逆变器驱动的电子镇流器系统的调光电路。 镇流器包括具有耦合到逆变器输出的初级绕组的输出变压器和适于耦合到用于向灯丝供电的灯丝线圈的次级绕组。 级间变压器具有适于耦合到灯丝的初级绕组和耦合到反相器输入的次级绕组,用于施加从该输入处的灯丝电流得到的反馈信号。 调光电路是反馈回路的形式,其包括在输出变压器的初级绕组上的绕组,级间变压器的初级绕组以及耦合这些绕组的可变阻抗。 改变阻抗必然会改变总反馈回路阻抗,因此改变施加在逆变器输出端的反馈量,反之亦然地提供给灯丝的功率。
    • 8. 发明授权
    • High frequency switch circuit
    • 高频开关电路
    • US07202649B2
    • 2007-04-10
    • US11201567
    • 2005-08-11
    • Ross W. BirdWilliam C. KnollJohn M. Staron
    • Ross W. BirdWilliam C. KnollJohn M. Staron
    • G05F1/56
    • H02M7/538H02M3/1588H03F3/2173H03K17/08142Y02B70/1466
    • A high-frequency switch circuit is presented. The invention includes a pair of switches, a pair of inductors, and a pair of diodes. Inductors are electrically connected in series between the switches which are thereafter electrically coupled to a power source. Switches are electrically connected to gate drivers so as to control and coordinate the cycling of switches between ON and OFF states. Inductors are also electrically connected to an output thereby communicating a voltage waveform thereto. In some embodiments, it may be desired to electrically connect the inductors to an output circuit to further modify the waveform. Diodes are likewise electrically connected about the switches and inductors. The present invention is applicable to a variety of circuits having a totem pole arrangement of switches sequentially cycled ON and OFF, examples including but not limited to half-bridge, full-bridge, and hybrid configurations.
    • 提出了一种高频开关电路。 本发明包括一对开关,一对电感器和一对二极管。 电感器电连接在开关之间,然后电连接到电源。 开关电连接到栅极驱动器,以便在ON和OFF状态之间控制和协调开关的循环。 电感器也电连接到输出端,从而将电压波形传送到其上。 在一些实施例中,可能需要将电感器电连接到输出电路以进一步修改波形。 二极管同样​​电连接在开关和电感器上。 本发明可应用于具有顺序循环开关的开关的图腾柱布置的各种电路,其实例包括但不限于半桥,全桥和混合配置。
    • 10. 发明授权
    • Lamp ballast circuit
    • 灯镇流器电路
    • US4127795A
    • 1978-11-28
    • US826051
    • 1977-08-19
    • William C. Knoll
    • William C. Knoll
    • H05B41/282H05B41/36H02M5/458
    • H05B41/2825Y10S315/04Y10S315/05Y10S315/07
    • A highly efficient tuned oscillator ballast circuit especially suitable for a fluorescent lamp load includes an oscillator circuit coupled to a pulsed DC potential source and having a tuned output circuit coupled to a load circuit, to a drive circuit for the oscillator which is dependent upon current flow in the load circuit and to a rectifier and charge storage and isolation and applying network coupled to the pulsed DC potential source and providing energy thereto whenever the potential decreases below a given reference level. A transient compensating circuit to protect the oscillator components from initial or "start up" transients is also included.
    • 特别适用于荧光灯负载的高效率的调谐振荡器镇流器包括耦合到脉冲DC电位源并且具有耦合到负载电路的调谐输出电路的振荡器电路连接到依赖于电流的振荡器的驱动电路 在负载电路和整流器中,电荷存储和隔离并且施加耦合到脉冲DC电位源的网络并且每当电位降低到给定参考电平以下时提供能量。 还包括用于保护振荡器组件免受初始或“启动”瞬变的瞬态补偿电路。