2024-11-09
Regarding the article on LED constant current power supply, the following is a summary of some key points:
The importance of LED constant current power supply:
LED constant current power supply is a power supply device specially designed for LED lamps. Its core function is to convert alternating current (AC) into direct current (DC) and provide stable current and voltage to drive the LED chip to emit light.
The brightness of the LED is proportional to the current passing through it, so the constant current power supply can ensure that the LED can obtain stable luminous intensity and the long life guaranteed by the manufacturer during use.
Working principle of LED constant current power supply:
LED constant current power supply keeps the load in a stable working state by controlling the output current, thus avoiding damage to the load due to unstable output voltage.
Constant current power supply In order to ensure that constant current drives LEDs, LEDs must be connected in series to ensure that the current of each LED in the circuit is equal and constant.
Application of LED constant current power supply:
Since the current change of LED lamp will affect its brightness and life, constant current power supply can effectively ensure the stable operation of LED lamp.
Constant current power supply is also widely used in lasers, electric vehicle chargers, solar photovoltaic systems and other fields.
Technical features of LED constant current power supply:
High efficiency, high reliability and high stability power control technology, including intelligent driver chip design technology and high reliability technology of driving power supply.
Flicker-free constant current power supply control technology to achieve stroboscopic-free LED lighting products lies in the scheme design of LED driving power supply.
The difference between LED constant current power supply and traditional power supply:
Traditional power supply adjusts the output voltage according to the load requirements, while constant current power supply keeps the load in a stable working state by controlling the output current.
Constant current power supply has the advantages of stronger stability, energy saving, ecological environment protection, etc.
Design considerations for LED constant current power supplies:
The volt-ampere characteristics of LED should be considered when designing, because the luminous flux of LED is related to the current, but it is not proportional. After increasing to a certain extent, the amount of luminous flux increases slowly with the current increase
LED is a temperature sensitive device. When the junction temperature rises, the light output decreases, and the forward voltage drop becomes lower and disproportionate
This information provides a comprehensive overview of the LED constant current power supply, including its definition, working principle, application fields, and technical features. Hope you find this information helpful.