公开(公告)号：US5635825A

公开(公告)日：1997-06-03

申请号：US298976

申请日：1994-09-02

申请人： Ronald A. Lesea

发明人： Ronald A. Lesea

IPC分类号： H02M1/14 ,  H02M1/00 ,  H02M1/42 ,  H02M7/06 ,  G05F5/00

CPC分类号： H02M1/425 ,  H02M1/4266 ,  Y02B70/123

摘要： An improved power factor DC power supply in accordance with the present invention (100 or 200) employs a power factor correcting network (120), a full-wave rectifier means (122), a pair of filter capacitors (124 and 126), and three current steering diodes (128, 130 and 132). The power factor correcting network (120) includes both an inductor means (136 and 240) and a capacitor (138), the combination configured to improve the power factor DC power supply (100 or 200) presents to the AC power-line (102) by reducing the level of harmonic currents the DC power supply generates on the AC power-line. The filter capacitors (124 and 126) are configured with the current steering diodes (128, 130 and 132) such that the filter capacitors are charged in series and discharged in parallel. In addition, the filter capacitors (124 and 126) and the current steering diodes (128, 130 and 132) are configured such that during the periods when the level of the voltage being developed across the load (104) exceeds one-half the peak level, the improved power factor DC power supply (100 or 200) functions as though the filter capacitors were not in the circuit.

摘要翻译： 根据本发明（100或200）的改进的功率因数DC电源采用功率因数校正网络（120），全波整流器装置（122），一对滤波电容器（124和126）和 三个电流导向二极管（128,130和132）。 功率因数校正网络（120）包括电感器装置（136和240）和电容器（138），所述组合被配置为改善向AC电力线（102）提供的功率因数DC电源（100或200） ）通过降低直流电源在交流电源线上产生的谐波电流的水平。 滤波电容器（124和126）配置有电流导向二极管（128,130和132），使得滤波电容器串联充电并且并联放电。 此外，滤波电容器（124和126）和电流导向二极管（128,130和132）被配置为使得在负载（104）之间产生的电压的电平超过峰值的一半的时段期间 水平，改进的功率因数直流电源（100或200）的功能就好像滤波电容器不在电路中。

公开(公告)号：US5477112A

公开(公告)日：1995-12-19

申请号：US53144

申请日：1993-04-27

申请人： Ronald A. Lesea

发明人： Ronald A. Lesea

IPC分类号： H05B41/02 ,  H02M3/155 ,  H05B41/24 ,  H05B41/282 ,  H02M7/537

CPC分类号： H02M3/155 ,  H05B41/282 ,  Y02B20/183 ,  Y10S315/07

摘要： Briefly, to reduce switching stresses, employed is a high-frequency AC power source (110) and a current-limiting (ballasting) network (116). The network ( 116 ) includes a high-frequency trap ( 120 ) and an impedance transforming network (122), which is coupled to the AC power source (110) by the trap (120) and which is for connection to a load that includes at least one gaseous discharge (fluorescent) lamp or other non-linear or negative-resistance load (102). The trap, which has the parallel resonant combination of an inductor ( 130 ) and a capacitor ( 132 ), is resonant at a frequency chosen such that the switching-circuit transistor(s) (210, or 230 and 232, or 250 and 252, or 270 and 272, or 708) of the AC power source (110) switch at times when the level of the current (charge flowing) therein and/or the voltage developed there across is zero, preferably, at a frequency slightly higher than a harmonic frequency of the high-frequency AC power source ( 110 ).

摘要翻译： 简而言之，为了降低开关应力，采用高频交流电源（110）和限流（镇流）网络（116）。 网络（116）包括高频陷阱（120）和阻抗变换网络（122），其通过陷阱（120）耦合到AC电源（110），并且用于连接到包括 至少一个气体放电（荧光）灯或其它非线性或负电阻负载（102）。 具有电感器（130）和电容器（132）的并联谐振组合的陷波器以选择的频率谐振，使得开关电路晶体管（210或230和232，或250和252） 当电流（电荷流动）在其中的水平和/或在其上形成的电压为零时，交流电源（110）的开关（270或272或708） 高频交流电源（110）的谐波频率。

公开(公告)号：US5757630A

公开(公告)日：1998-05-26

申请号：US523537

申请日：1995-09-05

申请人： Ronald A. Lesea

发明人： Ronald A. Lesea

IPC分类号： H05B41/298 ,  H02M1/12 ,  H05B41/29

CPC分类号： H05B41/2988

摘要： The present invention is directed to providing a load control circuit for non-linear or negative-resistance loads, such as gaseous-discharge lamps, having improved cost-effective control and control. In accordance with exemplary embodiments, a controlled start feature is provided which is relatively cost-effective to implement and manufacture. Further, by reducing the complexity and costs associated with such functionality, additional functionality can be provided without substantially increasing the cost of the control circuit.

摘要翻译： 本发明旨在提供一种用于非线性或负电阻负载的负载控制电路，例如气体放电灯，其具有改进的成本有效的控制和控制。 根据示例性实施例，提供了一种控制启动特征，其实现和制造相对成本有效。 此外，通过降低与这种功能相关联的复杂性和成本，可以提供额外的功能而不显着增加控制电路的成本。