Abstract: An LED layout structure has a substrate, at least one light emitting chip mounted on a front surface of the substrate. A first conductive wire is formed on the front surface of the substrate to connect with a first pole of the light emitting chip, and then the first conductive wire extends to a back surface of the substrate to form two terminals on the back surface. At least one second conductive wire having a first terminal formed on the front surface of the substrate to connect with a second pole of the light emitting chip, and then the second conductive extends to the back surface of the substrate and back to the front surface to form a second terminal. By applying the LED layout structure to form an LED array arrangement, the wire jumping problem is effectively avoided.

Abstract: A synchronous multiple serial-lamps sets comprises a plurality of serial or serial and parallel lamp sets; an IC set, an IC set auxiliary part, a power supply connector; and a signal transmission line. The leads serve to connect the lamp sets, IC set, IC set auxiliary part, power supply connector so as to be formed as an integral structure. The power supply connector is connected to a power supply for supplying power to IC set and IC set auxiliary part. In operation, multiple functions is generated, and many lamp sets are operated so that the light emitters are illuminated or extinguished. Any one IC set transmits a signal to each IC set, so as to start or reset each lamp sets and thus they have the same preset electric functions, and thus a function of synchronous operation in a plurality of lamp sets is formed.

Abstract: Disclosed herein is a FET controlled AC/DC power conversion circuit and application of same. The entire conversion circuit is constituted by a rectifier circuit, a switching circuit consisting of a FET, a controlling circuit, a monitor circuit, and a voltage stabilizing circuit, wherein output voltages of the rectifier circuit is respectively sent to the switching circuit and the controlling circuit, where switching time of the switching circuit is controlled by the controlling circuit thereby achieving control of output voltage to a load or loads.