CURRENT CONTROLLER FOR DUAL FEEDBACK LLC(LOGICAL LINK CONTROL)

摘要

The prevent invention relates to a current controller for a dual feedback LLC. The current controller for a dual feedback LLC according to the present invention includes a first comparator which receives a sensing current (Isen) and a reference current (Iref) with regard to a current flowing along a load, compares the same, and outputs a corresponding voltage; and a second comparator which receives a sensing voltage (Vsen) with regard to a voltage applied to the load and the output voltage from the first comparator as a reference voltage, compares the same, and outputs a voltage error between the sensing voltage and the output voltage from the first comparator. According to the present invention like this, a voltage controller is prepared in the current controller to always maintain voltage control and then activate voltage control in dimming off.