| 摘要 |
<p>FLASH LAMP CIRCUIT A circuit for repetitively firing a flash or strobe lamp with voltage derived from the AC line without large and costly storage capacitors utilizes a voltage doubler having small capacitors one microfarad in capacitance value or less. A trigger circuit provides a high potential pulse to the trigger electrode of the lamp at or near the peak of the voltage from the AC line to provide flashes at a desired rate, say one per second. The circuit may be used in a warning device.</p> |
