ILLUMINATION SYSTEM AND ILLUMINATION DRIVING METHOD

摘要

An illumination system includes a light-emitting device, a first switch element, a driving device, a detecting circuit, an arithmetic unit and a power supply unit. The first switch element is configured for receiving an external voltage supplied by an external power source. The driving device is configured for converting the external voltage to a direct-current power signal for driving the light-emitting device to emit light; the detecting circuit is configured for detecting a voltage across the first switch element and converting the voltage to a detecting signal; the arithmetic unit is configured for performing an arithmetic operation on the direct-current power signal and the detecting signal to generate a control signal; and the power supply unit is configured for supplying power for the light-emitting device according to the control signal and driving the light-emitting device to emit light. An illumination driving method is also disclosed herein.

主权项

1. An illumination system, comprising
a light-emitting device; a first switch element electrically connected to an external power source, the first switch element configured for receiving an external voltage supplied by the external power source; a driving device electrically connected between the light-emitting device and the first switch element, the driving device configured for converting the external voltage to a direct-current power signal for driving the light-emitting device to emit light when the first switch element is switched on; a detecting circuit connected across both ends of the first switch element, the detecting circuit configured for detecting a voltage across the first switch element and converting the voltage to a detecting signal; an arithmetic unit electrically connected to the driving device and the detecting circuit, the arithmetic unit configured for performing an arithmetic operation on the direct-current power signal and the detecting signal to generate a control signal; and a power supply unit electrically connected to the arithmetic unit, the power supply unit configured for supplying power for the light-emitting device according to the control signal and configured for driving the light-emitting device to emit light when the external power source is interrupted.