MOJAY M8900 is a raw side feedback, with single-stage active PFC high precision LED constant current control chip, M8900 integrated single-stage active PFC line, can achieve high power factor and very low total harmonic distortion, the chip can enter the quasi-resonant mode, so as to achieve high efficiency and reduce switching loss.< / p > < p > there are national semiconductor LM351LM270LM2795LM2795LM2796 produced about the same, look at your own preferences for person.
DOB is to put the LED constant current Driver source driver on the aluminum substrate, this technology has been available as early as 5 years ago, of course, at that time not called DOB and called light engine.
The MOJAY M8910 is a single-stage flyback and PFC driver chip aimed primarily at LED lighting applications. It is a raw side feedback control chip that does not require eitherWhat's the difference between chips? 1, LED constant current and constant voltage driver chip difference: constant current driver output current is constant, and the output DC voltage is different with the size of the load resistance in a certain range, the load resistance value is small, the output voltage is low, the greater the load resistance value, the higher the output voltage; The output voltage of the constant current drive is fixed, and the output current changes with the increase or decrease of the load.
2, constant voltage source power supply in the case of allowed load, the output voltage is constant, will not change with the change of load, usually used in low-power LED modeGroup, low power LED light strip is more. Constant voltage source is what we often say is a stable voltage power supply, which can ensure that the load (output current) changes and keep the voltage unchanged.
3, led constant voltage drive mode, this drive mode can sample the output voltage at the load end. Linear power supply feedback loop is the most typical application of constant voltage control. There is also an obvious disadvantage, that is, any change in the led forward voltage will lead to a change in the led current. In the face of this problem, the more common way is to use multi-branch flow sharing technology. The technology can be used to maintain each circuit using an integrated triodeThe technical answer is that the constant current drive is good, led has a temperature effect, the junction resistance will decrease as the temperature increases, the current increases further, the temperature further increases, the resistance is further reduced, forming a positive feedback, which makes the current increase rapidly, has a great impact on the life of the led, and even makes the led effective. The constant current drive keeps the current flowing through the led constant, ensures the operating environment of the led, reduces the led light decay, and extends the life of the led.
NoCuojing Fengmingyuan BP3125 is the best, mainly used in 5-12W low-cost power solutions.
Yes. Jingfeng Mingyuan is a virtual IDM analog and mixed-signal chip developer. The company's main products are LED lighting driver chips and solutions. Currently, it has LED lighting product lines, motor driver product lines and home appliance product lines, including BLDC single-phase motor controller, BLDC three-phase motor controller and so on.
Jingfeng Mingyuan 688368 The main business of Shanghai Jingfeng Mingyuan Semiconductor Co., Ltd. is analog semiconductor power management coreFilm design, development and sales. The main products of the company are general LED lighting driver chip, intelligent LED lighting driver chip, motor driver chip, AC/DC power chip, wafer products, etc.
The HUE lighting system, the first smart lighting product launched by Philips, makes full use of the smart power driver chip customized by Jingfengmingyuan. At the same time, Xiaomi's Yeelight is also equipped with the company's power management chip.
Contact information of Shanghai Jingfeng Mingyuan Semiconductor Co., LTD. : Tel: 021-51870166, Email: artem