Isolated Dc Dc Converter Circuit Diagram. Here is a easy circuit of a dc to dc converter using lm317t ic. This high performance ic has a lot of good features like input supporting voltage from 3 to 40 volt dc and delivers regulated output from 1 25 to 37 volt dc with 1 5a output current.
Generic isolated dc dc converter optical magnetic isolation figure 1. Lm317 is a very famous ic comes in to 220 package. From there the transformer creates a magnetic field which induces a voltage on the secondary side of the transformer.
V in load 1 non isolated point of load regulator r1 l1 c1 l2 c load tr en ft in out in out dcm load 2 f1 figure 1 block diagram of a single dcm circuit.
Block diagram of generic dc dc converter from this block diagram it is easy to see that the switches control the current that gets fed into the transformer. This circuit may solve your problem. From there the transformer creates a magnetic field which induces a voltage on the secondary side of the transformer. With sepic and zeta a capacitor is inserted between v in and v out of the step up circuit and the step down circuit of the basic type and a single coil is added.
