Circuit for flash lamp

摘要

A circuit for a gas discharge system includes a pulse forming circuit, a discharge lamp, a circuit for recovering energy from the discharge lamp when a trigger to the lamp is turned off, a high voltage switch between the lamp and ground, and a two-part dissipating circuit across the switch. The system can provide a flat response with highly controllable pulse width.

主权项

1. A pulsed lamp system comprising:
a pulsed gas discharge lamp for connection to a power source, the pulsed gas discharge lamp enclosing a gas that, when triggered, ionizes and conducts a high energy pulse; a switch coupled between the pulsed gas discharge lamp and ground; and a microcontroller for: (a) closing the switch, (b) after a desired time, triggering the turning on a trigger for the pulsed gas discharge lamp, and (c) after the trigger and after a desired pulse width time to deliver a pulse with high energy, opening the switch, wherein the microcontroller is configured to monitor a current level of the pulsed gas discharge lamp and, in response to the monitoring, causes the switch to open at a predetermined time after sensing an increase of the current level.