Coupled inductor and power supply module

A coupled inductor, comprising:

• a magnetic core, a first winding and a second winding, wherein:
• a first passage and a second passage, which extend along a first direction, are formed in the magnetic core;
• the magnetic core comprises a first end face and a second end face, which are oppositely arranged;
• the second passage is arranged in parallel with the first passage, and both the first passage and the second passage extend from the first end face to the second end face;
• each of the first winding and the second winding has a portion penetrating the first passage and a portion penetrating the second passage, wherein the first winding runs through the first passage for N times while the second winding runs through the first passage for N+1 times, and the second winding runs through the second passage for N times while the first winding runs through the second passage for N+1 times, wherein N is an integer greater than or equal to one;
• two terminals of the first winding are provided on the first end face and the second end face, respectively, forming a first terminal and a second terminal of the coupled inductor;
• two terminals of the second winding are provided on the first end face and the second end face, respectively, forming a third terminal and a fourth terminal of the coupled inductor, wherein one of the first terminal and the third terminal of the coupled inductor is a dotted terminal, while the other one is a non-dotted terminal, and the first terminal and the third terminal are both provided on the first end face.