Black Light Inverter Circuit with UV Tube Lamp

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This circuit diagram is taken from the Motorola’s Application Note. The efficiency of this circuit is about 80%. This circuit enable its operation to be powered by 2.5V rechargeable battery supplying 400 mA current at 26V which is needed by the gas arc tube for portable ultraviolet lamp. Since the light is invisible, the ultraviolet lamp is also known as black light which can energize some materials to glow when its exposed to this light. Money or other security tag is usually checked using this kind of light. Here is the circuit (freecircuitdiagram.com) :

Black Light Inverter Circuit with UV Tube Lamp