High speed, high current pulsed driver circuit

摘要

Various technologies presented herein relate to driving a LED such that the LED emits short duration pulses of light. This is accomplished by driving the LED with short duration, high amplitude current pulses. When the LED is driven by short duration, high amplitude current pulses, the LED emits light at a greater amplitude compared to when the LED is driven by continuous wave current.

主权项

1. A system comprising:
a light emitting diode (LED); and a LED driver circuit that comprises:
an nMOS transistor; anda pMOS transistor, wherein gates of the nMOS transistor and the pMOS transistor are electrically connected to a pulsed trigger source that emits a pulsed trigger signal, wherein the LED driver circuit is configured to deliver pulsed current to the LED as a function of the pulsed trigger signal, wherein the pulsed current has a peak amplitude that is greater than a maximum continuous forward current rating of the LED, the LED emits pulses of light in correspondence with the pulsed current.