| 摘要 |
PURPOSE:To control an electronic flashing device using a semiconductor device having the formation of a thyristor element connected to a cascode and a MOSFET on a chip. CONSTITUTION:The electronic flashing device is provided with the semicoductor device 45 connected with a light emitting tube 44 in series and having the formation of the thyristor element connected to the cascode, and the MOSFET, on a chip, a trigger circuit 300 applying a trigger voltage to the light emitting tube in response to a light emission starting signal for starting the emission of the light of the light emitting tube 44, a gate voltage applying means 37, 29,... applying a voltage to the gate of the semiconductor device, in response to a light emission starting signal TG, a gate voltage eliminating means 42 eliminating the voltage of the gate of the semiconductor device, in response to a light emission stopping signal STP stopping the emission of the light of the light emitting tube, etc., and the series body of the light emitting tube and the semiconductor device is connected in parallel with a main capacitor. |
