Jiangmen 2.5K magnetic powder suitable as a direct drive 110V lamps; Chi Electronic 3K ring suitable as 220V lamps. Why? The reason is 110V direct drive circuit is apt to cause hot start problem; 220V circuit and no hot start problems. Jiangmen powder magnetic interference to temperature changes little, and energy-saving lamps 220V at high temperatures required to power down properly, you need to be appropriately reduced transistor drive current, avoid lights burned at high temperature and high pressure. Assuming the temperature rises, the transistor magnification increases, current increases, the lamp power is increased. Then you need to power down properly adjusted, through choice of Chi 3K ring, its temperature increases more sensitive, BS goes up when the temperature rises, the transistor drive current is reduced, the lamp power is reduced magnetic connectors, ensure contradiction temperature and lamp power. Choose turns the whole bundle cable through a ferrite bead constitutes a common mode choke, if necessary, can also be in the ring on top of the cable around a few turns. The more turns, the lower frequency interference suppression effect, the better, but at higher frequencies the noise weak inhibition. In practical engineering magnetic connector price, according to the frequency characteristics of the interference current ring to adjust the number of turns. Usually when a wide-band interference signals, you can set both on the cable ring, each surrounded by a different number of turns of the magnetic bead supply connector, which can interfere with high frequency and low frequency while suppressing interference. From the mechanism of action of the common mode choke point of view, the greater the impedance, the more obvious effects of interference suppression. The common mode choke coil impedance from the common mode inductance Lcm = jwLcm, from the formula is not difficult to see that, for a certain frequency noise, magnetic inductance bigger the better. But the reality is not the case, because the parasitic capacitance of the actual ring ring connector also easy to do, its existence is parallel with the inductor. When faced with the high frequency noise, capacitive reactance is small, the magnetic inductance short circuit, so that the common mode choke useless. Magnetic connector production, magnetic connectors, electronic products factory Song Chong-wook from Dongguan Shijie Xu Song Chong electronic products factory provided. Dongguan Shijie Xu Song Chong Electronic Products Factory (chuangxs.1688.com) (www.chuangxs.1688.com) strong, credible, connectors, and other industries in Dongguan, Guangdong has accumulated a large number of loyal customers. The company better work attitude and continuous improvement to create innovative ideas will lead Xu Song electronic products factory and you hand in hand into the brilliant, for a better future!