on the one hand by the choice of lamps and the disibution of pole position to reduce glare on the players and the interference of light on the surrounding environment of the spillover effect, on the other hand the pole as much as possible hidden in the green plants, so that the poles and the golf course layout the integration of landscape, golf course to create a harmonious environment.west lake from a beautiful natural lake turned into lakes after watching tours, boat and ultimately, the impact on the shape go hand in hand.
vinyl signs supply voltage compensation if the application requires only a luminance level, do not need to be connected to the ka2 potentiometer terminals on the analog comparator. ka2 comparator with the positive terminal has an internal band gap power, vsee can use this power supply voltage reference for comparison. ka2 has a dedicated conol bit can be used to start the voltage reference. when the reference is started, the corresponding mcu pin into a general-purpose inputs and outputs. band gap fixed at 1.24v supply voltage level without the impact of mcu power supply voltage vdd. regardless of whether changes in response to vin mcu vdd, by conast vsee and fixed reference point 1.24v, mcu can adjust the pwm duty cycle, from the vin a corresponding change in compensation.
led scrolling signwhen is 100μm, rθattach equal to 7.286 (k / w); when we use conductive die attach adhesive ablebond 84-1lmisr4, λ = 2.5w/mull; k, while its thickness is equal to 20μm, the rθattach equal to 0.408 (k / w), the time when the thickness of 100μm, rθattach equal to 2.041 (k / w). therefore, the use of different adhesive materials there is a big influence on its thermal resistance, while , in print or coating die attach materials, how to reduce the thickness of the material is also very important. 4 summary of the maximum allowable junction temperature of led chip 125 , the worst working environment if the temperature is 65 , then for a 1w high power led, given the high-power device from an external heat sink thermal resistance is generally 40 (k / w), thermal resistance junction to the device should be less than 20 (k / w). and a high-power 5w led .
lawn signs
