eem2am1
Junior Member level 1

Hello,
the video at the bottom of this page about UCC25710 PWM IC says that it can achieve greater than 1% efficiency in multiple strings of LEDs...even though each series string does not have individual current control.............
AC/DC and DC/DC Power Supply - PWM Controller - UCC25710 - TI.com
..Surely this must be false?
With LEDs , every single series strng of LEDs must have its own dedicated current controller.
the video at the bottom of this page about UCC25710 PWM IC says that it can achieve greater than 1% efficiency in multiple strings of LEDs...even though each series string does not have individual current control.............
AC/DC and DC/DC Power Supply - PWM Controller - UCC25710 - TI.com
..Surely this must be false?
With LEDs , every single series strng of LEDs must have its own dedicated current controller.