LED street lamp driver circuit requirements

LED lights for the requirement of the drive circuit is can ensure constant current output characteristics, because the LED junction voltage positive work relatively change area is small, so to ensure the LED street lamp drive current constant is basic guarantee for the LED street lamp power output constant. For the present status of the power supply voltage is not stable, LED lamps and lanterns of road lights LED driver circuit with constant current output characteristics is very necessary, can guarantee the light output constant and prevent super power operation of outdoor LED lights. If you want to make the LED street lamp driver circuit presents constant current characteristic, from the output end of the drive circuit to look inward, and the output impedance in must be high. Work, also through the LED street light load current output impedance, if after the drive circuit by the step-down, rectifier, filter and dc constant current source circuit or general switch power resistance circuit, on its must also consume a lot of active power, so the right design scheme is to use active electronic switch circuit or high frequency current is used to drive the LED street light, can make the drive circuit in maintaining good under the premise of constant current output characteristics, still has the very high conversion efficiency. Want to learn more industry information or ask price, can call advisory