Three-segment controllable dimming temperature principle for LED power chip SM2213EA

As the LED application market will continue to grow rapidly, the range of LED products will continue to grow. It is also necessary to increase the LED brightness control functions displayed on the demand for high-end products. Attending the meeting, for example, LED lights and monitors should pay attention to the link.

Dimming is a very common feature of lighting systems. For incandescent lamps, it can be easily implemented at low cost. The dimming of LED luminaires has certain difficulties, but for architects and residential users, they may not want to lose the advantages of dimming control when switching to LED lighting. This involves many related knowledge of LED lighting.

Here not to do a detailed answer one by one, today is the SM2213EA that can perform three controllable dimming color temperature. In general, adjusting the brightness of the LED light is achieved by adjusting the current, whether it is directly adjusting the size of the DC current or adjusting the average current size through the PWM mode.

Three-segment controllable dimming temperature principle for LED power chip SM2213EA

Just like the three-stage dimming principle of the LED power chip SM2213EA, the SM2213EA changes the input current through the switch's fast switching port switch, and adjusts the light brightness variation from 100% to X%, or X%. The adjustment ratio to 100% controls the brightness of the light, which is the general principle of the idea of ​​dimming the LED power supply chip SM2213EA.

It is not unreasonable to place SM2213EA ahead of other types of chips in LED power chip three-stage dimming application.

, SM2213EA system structure to analyze, the external circuit is simple, no other redundant electronic components exist on the PCB board, of course, if the LED power supply chip needs to do no flicker program that requires the presence of a capacitor, this LED power supply The wide input voltage range of the chip can be floated between 110V and 220V. The SM2213EA uses the ESOP8 package format, which allows most LED solution designers to fit the SM2213EA power supply chip on their own PCB board without changing too much. The line problem.

Three-segment controllable dimming temperature principle for LED power chip SM2213EA

In terms of temperature regulation, the LED power supply chip SM2213EA inherits the over-temperature protection function, and can reduce the power output to achieve the effect of lowering the temperature when the temperature inside the LED lamp reaches a protection point. It can be said that in the case of three-stage dimming and tinting, it can also protect the interior of the LED luminaire. A solution that is so cost-effective can be said to be an excellent choice for three-stage dimming and tinting. In this way, we can easily understand the dimming design and characteristics of the LED power chip three-stage dimming SM2213EA. So that everyone can save their time when choosing the right chip solution.

Three-segment controllable dimming temperature principle for LED power chip SM2213EA

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