(1)Driver power supply manufacturer of driver power supply constant current
 

B. The constant current circuit is not afraid of load short circuit, but it is strictly forbidden to completely open the load.

C. Constant current drive circuit to drive LED is ideal, but the price is relatively high. D. Attention should be paid to the high current and voltage used, which limits the number of LEDs used.

(2) Driver power supply voltage stabilization type of driver power supply manufacturer:

A. When the parameters of the voltage stabilization circuit are determined, the output voltage is fixed, and the output current changes with the increase or decrease of the load;