High Pressure Controller LED products: high-pressure type LED product design voltage is AC / DC 220V voltage generator SX440 manufacturers, the number of 36-48 each loop LED in series, each loop current of 20mA or less, limiting in two ways, one species are limiting resistor, in this way a large power resistors are recommended every four LED series with a 1 / 4W metal mold resistance Dongguan generator SX440, evenly distributed heat, this connection is the most stable and reliable; another species are limiting resistors and capacitors in series, which received most of the voltage drop method on capacitors, resistors, power consumption SX440, can only be used in a stable long bright state, if the flashing capacitor discharge, but the voltage doubling, LED easily damaged . Any use of the controller LED current limiting resistor must be used the way, LED general one meter for each loop, 5W power surge plates sx440 production, three-color power per meter 15W. Common NE112K gradient controller to control the DC 1200W, NE103D 4500W AC load DC load 1500W, if the lamp flashes on the use of multi-unit NE112K, if you only need to use the whole flashing NE103D. If you use a gradient mode, pay attention to the load matching, light distribution characteristics of neon and LED's are not the same, the same circuit can not mix different types of loads connected. Controller repair method: When the electric car brush controller does not output a) set the multimeter hair +20 (DC) position, the first measurement of the gate of the high and low potential output signal. 2) When the brake handle as pinch, there are more than 4V gate signals of potential changes, you can exclude the brake failure. 3) Then follow on foot brush Controllers Common Menu morals, values ??and the measured voltage logic chips public morals master circuit analysis, and check the value of each chip peripheral components (resistors, capacitors, diodes) whether and components identifying surface consistent. 4) Finally, check the peripheral device or integrated circuit fails, you can replace the same type of device to troubleshoot. Dongguan generator SX440 | Zhongxin Electrical and Mechanical (certified) | SX440 provided by the Dongguan City, South City Zhongxin Electrical and Mechanical Services Department. Dongguan City, South City Zhongxin Electrical and Mechanical Services Department (zhongxin888.net.cn) is Dongguan, industrial products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Electromechanical faithful leadership in the staff warmly welcome all inquiries negotiations to create a better future for electromechanical faithful.