| 摘要 |
PURPOSE: To prevent starting to charge a main capacitor caused by electric flash light emission, in a stroboscopic circuit automatically charged with one pushing operation. CONSTITUTION: When a stroboscope charging switch 7 is turned on, an oscillation transistor 22 is actuated. A control transistor 24 is actuated with the actuation of the transistor 22 and the actuation of an oscillation circuit constituted of the oscillation transistor 22 and an oscillation transformer 23 is maintained. Even if the stroboscope charging switch 7 is turned off, a main capacitor 41 is charged up to a normal charging voltage. When the main capacitor 41 is charged to exceed the normal charging voltage, an oscillation stopping transistor 25 is actuated to stop the charging. When a trigger switch 46 is turned on, a discharge current from the capacitor 41 is made to flow, so that the stroboscopic tube 42 emits light. |
