Patent ID: 11765802

Abstract:
An isolated primary side switched converter (100) has a galvanic isolation stage (105) separating a primary side (101) and a secondary side (103). The secondary side winding (107) is connected to a rectification circuit and has a center tap. A first terminal (T1), a second terminal (T2) and a third terminal (T3) are provided for connecting one or more LED loads (LED1, LED2) to the secondary side (103) of the converter (100). The rectification circuit (109) is configured to set the first terminal (T1) at a positive electrical polarity and to set the second terminal (T2) at a negative polarity. The third terminal (T3) is electrically connected to the center tap. One or two LED loads can be connected between T1 and T3 (low voltage) and T2 and T3 (low voltage), or in one embodiment a single LED load can also be connected between T1 and T2 (high voltage).