Mianyang street lamp

In the face of all kinds of miscellaneous collection on market, known and unknown controller products, our street lamp lighting factory technicians Liang Gong to talk about the solar controller, should choose what kind of, what are the basic choices point. Solar street lamps controller in

in the face of market on a wide variety of well-known and unknown controller products, hong liang told us our street lamps factory lighting technicians should choose what kind of solar controller, what are the basic option. Solar street lamps controller in the solar street light system has lower cost than, but it plays a big role. If choose undeserved, stability and service life of the whole system will be greatly reduced. Relatively mature controller can also reduce the cost of the whole system through its function, so as to achieve the purpose of cost savings. Let us compare the traditional simple controller and some of the major industrial controller performance: some customers often find a, exit protection voltage, solar road light after a period of time, especially after continuous rainy days, street lights would be days or even for a few days is not bright, measured the battery voltage is normal, no fault in the controller and the light. This problem has been plagued many engineering companies, but in fact it is & other exit under-voltage protection. The higher the value is set, the longer the recovery time after undervoltage, this will lead to many days without lighting. On this issue, the industrial version controller allows each customer according to the configuration Settings for the voltage value to exit the protection. However, it is important to note that the configuration panels shall be reasonable. If panels, charging amount can not meet the discharge in the night, the battery will be always in a state of deep discharge, long service life will be greatly reduced. Therefore, the distribution of panels must expand the allowance. Configuration of panels, the greater the exit to protect the lower voltage, so as not to affect the battery. Second, the light emitting diode lamp constant current output due to the light emitting diode characteristic, must be conducted by technical means for the constant current or current limiting, otherwise can't normal use. Ordinary light emitting diode lamp by adding another driving power to realize constant current for led lamp, but the driver accounted for about 10% of the total power lamp - 20%, for example, a theoretical value for 42 w leds light, drive after the actual power of about 46 - 50W。 When calculating the power of solar panels and battery capacity, must increase 10% 20% of the power, in order to meet the power consumption due to driving. In addition, as the driver is more and more, and an additional links will lead to failure. Industrial controller software was adopted to realize constant current power consumption, high stability, reduce the overall power consumption. Third: the output phase of the normal controller can only be shut down for a few hours, after turn on the light such as 4 hours or eight hours, this can't meet the needs of many customers. Industrial controller can be divided into three cycles, each cycle time can be arbitrarily set, each cycle can be used according to different environment set to the closed position. Four: light emitting diode lamp output power adjustment in solar energy application used in the lamp, led lamp is most suited to control the output pulse width of different power. At the same time of pulse width and current limiting, adjust led lamp is the ratio of the total output of empty. For example, if a single 1 w LED7 string of 5 and a total of 35 w leds is a device discharge lamp at night, it can adjust the power in the middle of the night and early in the morning, such as the middle of the night and early in the morning of 25 w, 15 w and current is locked. Therefore, can satisfy all night lighting, and can save cost of panels and the configuration of the battery. Trials show that for a long time, pulse width adjustable light emitting diode lamp can produce less heat, prolong the service life of leds. In order to save electricity at night, some lamps and lanterns factory will led lamp into two internal power, and a power shut down during the night, in order to reduce half of the output power. However, the practice proved that this method can only lead to half of the light source to fade, brightness or a light source of the early damage.