| 摘要 |
<p>The present invention relates to a light emitting diode driving circuit. The driving circuit according to an embodiment of the present invention comprises: a plurality of power converting units for switching an input power to generate an output power which has a certain voltage level; a plurality of light emitting diodes respectively connected to the output terminals of the plurality of power converting units; a dimming switch having one end which is connected to the terminals of the plurality of light emitting diodes; a plurality of detecting units for detecting current flowing through the plurality of power converting units into a voltage; a plurality of rectifying units for respectively calculating an average level of voltages which are detected by the plurality of detecting units; and a controlling unit for controlling the switching of the power converting units and the dimming switch according to the average level of voltages calculated from the plurality of rectifying units.</p> |
