| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent the loss of energy and the rapture of a light emitting diode, which are due to reverse direction bias generated conventionally by the rectification function of the diode. <P>SOLUTION: The alternating current system light emitting diode device includes a substrate, a rectifying unit and the light emitting diode. The rectifying unit is a bridge rectifier fixed onto the substrate and includes a first AC terminal and a second AC terminal which receive an AC signal and a first electrode and a second electrode which output a rectifying signal. The bridge rectifier includes a first diode, a second diode, a third diode and a fourth diode which are connected to each other. The light emitting diode is fixed onto the substrate and electrically connected to the first diode and a second diode. The rectifying units are arranged annularly around the light emitting diode on the substrate. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
