step down isolation transformer High frequency transformer manufacturing process points 2 Kinking: AVertical dobbin Thick wire: 0.8φ above the winding wire 1 turn Fine wire: 0.2-0.8φ winding wire 1.5 turns Extremely fine wire: 2-3 turns of wire below 0.2φ The principle of vertical BOBBIN winding method: the winding line is pressed as far as possible to not exceed the convex point as the principle. BHorizontal BOBBIN: about 2-3 circles of winding, winding do not press to the end, so as not to burn BOBBIN when soldering, if there is a width limit and strict specifications only use this way, the winding wire pressure to the end of soldering, and then cut edge PIN, to reduce the width of the whole transformer. CHorizontal (horizontal, BOBBIN wrapping method: about 2-3 circles of winding, do not press to the end so as not to burn BOBBIN when soldering. Note: If the product has a width limit and the specification is tight, it is a special case that the winding part must be cut short. At this time, the winding must be pressed to the end as far as possible.