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Question:

What is the linear dimming of the LED shake head lamp?

Is to adjust the brightness of LED bulb, or what? I hope to be more specific

Answer:

2 、 low voltage LED product high power controllerLow voltage LED products generally design voltage 12V-36V, each loop LED number of 3-6 series, with resistance step-down limit flow, each loop current 20mA below. A LED product is composed of multiple loops of LED, the advantage is low voltage, simple structure, easy to design, the disadvantage is: when the product size is large, the current is large, the need to configure low-voltage switching power supply. Due to the shortcomings of products, low voltage can not be long-distance transmission, are limited to small volume of products, such as signs, text, small patterns, etc.
Here are two microcontroller controllers:1 、 high voltage LED product controllerDesign of voltage type LED AC / DC voltage is 220V, the number of each loop LED 36-48 series, each loop current is below 20mA, there are two kinds of current limiting mode, a current limiting resistance, the resistance of large power consumption, recommend the use of each of the 4 LED series with a 1/4W metal mold resistance, uniform distribution heat, this connection method at present is the most stable and reliable; the other is a series current limiting resistor capacitor, the voltage drop in the most connected capacitor, resistor power consumption is small, can only be used in stable state on if the capacitor voltage flicker, but with the times, LED is easy to damage.
LED as an environmental protection and energy saving new things, under the control of single-chip microcomputer, there can be many changes. Control of these lights, to use micro processing controller, Sonix MCU is a good choice.

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