| 摘要 |
A light source system including a driver system and a light emitter (such as one or more laser diodes) connectable at the output of the driver system. The driver system includes: an energy limiter adapted for limiting the energy supply to the light emitter. The energy limiter includes: a current integrator circuitry adapted to measure and integrate a current supplied to the light emitter over time; and a comparator comparing the integrated value of the current with a reference signal for generating a maximal energy exceeded switching signal, in case a the energy supplied to the light source exceeded a predetermined thereshold. The light source system may also include a buffering electric circuit connectable at a power input of the driver system for providing electrical power thereto. The buffering electric circuit includes an energy storage module electrically connected for supplying electric energy to the light emitter; and a controllable current source connectable to an electric power source and to the energy storage module. A controller controls the current flow through said controllable current source so as enable proper operation of said light source while restricting the current drawn from the power source from exceeding a predetermined value. |
