What is the principle of constant current power supply in LED street lamps?
Inductors, coils, transformers, these inductors are switching power components, one of the main characters,The role is to assume load or pressure, isolation, filtering and so on.All other components, resistors, capacitors, and protective elements are used.
The source of power source rectifier lamp mainly alternating current, and the electronic components are basically.Made in direct current. So the input power must be rectified first.Diode zener diodes and Schottky diodes are common in power management systems.Many small power components operate at low voltages or require reference electricity in the systemVoltage will use a zener diode; in the switching power supply, the final low voltage DC output
Constant current drive IC, which is the core component of constant current power supply, utilizes the principle of PWM (wave width control)The power of digital square wave, and then according to the information management of the power supply source from the partyThe duty ratio of the wave thus keeps the output current constant.Field effect transistor or module
