Visual notification appliance and driving method thereof

2015 
The invention relates to a visual notification appliance and a driving method thereof. The invention puts forward a visual notification appliance in a fire fighting system. The visual notification appliance comprises an input end (210), a booster circuit (230, 830), an energy storage element (240), at least one flash element (260), and a flash control circuit (450) used for applying the energy of the energy storage element (240) to the at least one flash element (260) to make the at least one flash element (260) flash. At least one of the booster circuit, the at least one flash element and the flash control circuit is designed in such a way that the residual voltage (Vr) of the energy storage element is greater than or equal to the input voltage (Vin) in each flash operation. By using the notification appliance put forward by the invention, the emergence of repeated flow can be restrained effectively without an additional current limiting circuit.
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