| 摘要 |
PURPOSE:To provide a strobe device consisting in a combination of a simple inverter circuit, whose number of component parts is decreased to a great extent, and a prediction feedback PWM control which works with reasoning. CONSTITUTION:An inferring part 1 is fed with a primary side battery voltage of an externally excited strobe charging circuit and the charge voltage of a secondary side main capacitor, and a pulse width changing part 2 changes over at least in steps or continuously the pulse width of PWM and the duty ratio according to the result from reasoning made by the inferring part 1. A strobe charging part 3 charges the main capacitor in conformity to PWM output signals given by the pulse width changing part 2. |
