Patent ID: 7649322

Claim:
A decorative LED string, comprising: a first power terminal and a second power terminal; a first diode, wherein an anode of the first diode is electrically connected to the first power terminal; a second diode, wherein an anode of the second diode is electrically connected to a cathode of the first diode; a third diode, wherein an anode of the third diode is electrically connected to the second power terminal; a fourth diode, wherein an anode of the fourth diode is electrically connected to a cathode of the third diode, and a cathode of the fourth diode is electrically connected to a cathode of the second diode; a fifth diode, wherein a cathode of the fifth diode is electrically connected to the first power terminal; a sixth diode, wherein a cathode of the sixth diode is electrically connected to an anode of the fifth diode; a seventh diode, wherein a cathode of the sixth diode is electrically connected to the second power terminal; an eighth diode, wherein a cathode of the eighth diode is electrically connected to an anode of the seventh diode, and an anode of the eighth diode is electrically connected to an anode of the sixth diode; a plurality of LEDs electrically connected in series to form an LED series, wherein a first LED of the LED series is electrically connected to the second diode and to the fourth diode, and a last LED of the LED series is electrically connected to the sixth diode and the eighth diode.