Bright with fingertip moving - SCR dimming control chip Abstract: Today, to tell you a very competitive TRIAC dimming control chip SM7700P. What a little SM7700P achieve that is - when the night falls, even if only a lamp, you can also have the freedom to control one shade, bright changing world body:? SCR dimming according to people! The need to adjust the brightness of the lighting, to humanity, resource conservation, rational purpose lighting. So in the field of LED lighting and dimming scheme SCR dimmers applications emerged. The SCR dimming the core part of the program is to control management chip. As if the whole scheme of the brain chip, performance will directly affect the triac dimmer compatibility is good or bad, thereby affecting the dimming effect is good or bad. Ming Microelectronics SCR BTA208 according to market demand, the introduction of high-performance TRIAC dimming control management chip SM7700P. Today, small'll tell you about this very competitive TRIAC dimming control chip SM7700P. What SCR in the circuit main purpose is? Common basic purpose is controllable thyristor rectifier. Familiar diode rectifier circuit are not controlled rectifier circuit. If the diode into SCR SCR, can constitute a controlled rectifier circuit. Now I draw a simple single-phase half-wave controlled rectifier circuit]. Sinusoidal AC voltage U2 during the positive half cycle of thyristor BTA216, if there is no input VS of gate trigger pulse Ug, VS is still not turned on, only when U2 is in the positive half cycle, when the gate trigger pulse is applied Ug, SCR is triggered conduction. Now SCR BTA316, draw its waveform, you can see that only the arrival of the trigger pulse Ug, the load RL have UL output voltage (waveform chart shaded area). SCR T435-800T, are fertile Electronics (certified), SCR provided by the Dongguan City is Wal-Electronic Technology Co., Ltd. Dongguan City is Wal-Electronic Technology Co., Ltd. (www.dgmydz.com) (www.dgmydz.com) is Dongguan, FET leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum limits to meet customer needs. Wal-electronics leader in the positive with the staff warmly welcome all inquiries negotiations to create a positive future Wal-electron better.