Patent attributes
A parallel circuit for light-emitting diodes includes a first power wire, a second power wire, a first LED, a second LED, a switch, and a controller. The first LED has two ends respectively connected to the first power wire and the second power wire. The second LED and the switch are serially connected into a series circuit. One end of the series circuit is connected to the first power wire, and the other end of the series circuit is connected to the second power wire. The switch changes between a conductive state and a non-conductive state according to a switching frequency. The controller is electrically connected to the first power wire and the second power wire. The controller supplies electric power to the first power wire and the second power wire, to generate a voltage difference between the first power wire and the second power wire.