公开(公告)号：US3714508A

公开(公告)日：1973-01-30

申请号：US3714508D

申请日：1971-02-22

Applicant: GEN ELECTRIC

Inventor： HARNDEN J ,  KORNRUMPF W ,  MARQUARDT R

IPC: G03B15/04 ,  G03B15/03 ,  H05B39/00

CPC classification number: G03B15/0457

Abstract: Electronic circuitry for sequentially firing photoflash lamps of an array of multiple flash lamps. The circuitry comprises means for causing capacitors to be charged, at different rates of charging, upon the occurrence of a start-flash signal. These capacitors are respectively associated, by means of solid state switching devices, with certain flashlamps of the array, and the unfired flashlamp associated with the charging capacitor which first reaches a predetermined voltage, will be the first to fire. Alternatively, the first lamp to be fired need not be associated with a capacitor. Upon a lamp firing, disenabling circuitry causes discontinuing of charging of the capacitors until occurrence of the next start-flash signal, whereupon the capacitors repeat or resume their charging until the unfired flashlamp becomes fired which is associated with the next charging capacitor to reach the predetermined firing voltage. The procedure is repeated for causing sequential firing of all flashlamps in the array. Circuit modifications and alternative embodiments disclosed, including a single-capacitor circuit.

Abstract translation: 用于顺序地激发多个闪光灯阵列的闪光灯的电子电路。 电路包括用于在发生启动闪光信号时以不同的充电速率使电容器充电的装置。 这些电容器通过固态开关器件分别与阵列的某些闪光灯相关联，并且与首先达到预定电压的充电电容器相关联的未烧制的闪光灯将首先触发。 或者，要被点火的第一灯不需要与电容器相关联。 在灯点火时，断电电路导致中断电容器的充电直到发生下一个启动闪光信号，于是电容器重复或重新开始充电，直到未充电的闪光灯被点亮，这与下一个充电电容器相关联才能达到预定的 点火电压。 重复该过程以引起阵列中所有闪光灯的顺序点火。 公开了包括单电容电路的电路修改和替代实施例。