公开(公告)号：WO1994020973A1

公开(公告)日：1994-09-15

申请号：PCT/US1994002451

申请日：1994-03-08

Applicant: BEACON LIGHT PRODUCTS, INC.

Inventor： BEACON LIGHT PRODUCTS, INC. ,  JOHNSON, Samuel, A. ,  ROBLIN, Patrick ,  HUNG, Chih-Ju ,  LAU, Veng-Chong

IPC: H01J07/44

CPC classification number: H05B39/08 ,  H01K1/62 ,  H01R33/9453 ,  Y10S323/908

Abstract: An incandescent lamp bulb (70) which is driven by an electronic control module (ECM) (28) and method of manufacture includes an inductor (72) having a magnetic element and a winding thereon disposed within the lamp bulb (70). The inductor (72) significantly reduces the di/dt rise time of voltage and current when a triac (74) within the ECM module (28) is driven to conduction on each one half cycle of the applied AC line voltage. This operation in turn produces a substantial reduction in radio frequency interference, both of radiation transmitted into space from the lamp bulb (70) and by direct DC coupling back into the AC line voltage source. In a preferred embodiment, the di/dt rise time is calculated mathematically based on a Fourier series transformation of the current conducted through the filament (16) by the triac (74).

Abstract translation: 由电子控制模块（ECM）（28）驱动的白炽灯泡（70）和制造方法包括具有磁性元件的电感器（72）和设置在灯泡（70）内的绕组。 当ECM模块（28）中的三端双向可控硅（74）被驱动到所施加的AC线路电压的每一个半周期时，电感器（72）显着地减小电压和电流的di / dt上升时间。 这种操作又产生了射频干扰的显着降低，辐射从灯泡（70）传输到空间中，并且通过直接DC耦合回到AC线路电压源。 在优选实施例中，di / dt上升时间是基于通过三端双向可控硅（74）传导通过灯丝（16）的电流的傅里叶级数变换而以数学方式计算的。