LED power inductive DC-DC boost circuit principle

Probe current voltage pin 420*4450 head diameter 5.0 over current current and voltage pin

inductance

Overview:
This article mainly introduces the inductive DC-DC booster principle, and this article is a basic nature, suitable for those who do not understand the characteristics of the inductor, but at the same time interested in the booster.

Inductance is a component we use for a long time in transformer design. Its main function is to convert electrical energy into magnetic energy and store it. It should be noted that although the structure of the inductor is similar to a transformer, it has only one winding. This article mainly introduces the inductive DC-DC booster principle, and this article is a basic nature, suitable for those who do not understand the characteristics of the inductor, but at the same time interested in the booster. Some of the theoretical knowledge in the text can be found online, so there is not much to say here.
To fully understand the inductive boosting principle, we must first know the characteristics of the inductor, including electromagnetic conversion and magnetic energy storage. These two points are very important because all the parameters we need are derived from these two characteristics.

First, let's first look at the following diagram:

As you all know, the picture above is an electromagnet, and one battery is energized for one coil. Some people may wonder why such a simple graph has a good analysis? We are going to use this simple diagram to analyze what happened at the moment of power-on and power-off.

The coil (hereafter called "inductance") has a characteristic - electromagnetic conversion, electricity can become magnetic, and magnetic can also be converted back to electricity. When energized, the electricity becomes magnetic and is stored in the inductor in the form of magnetism. The power-off transient will turn into electricity and be released from the inductor.
(Please read the PDF for details)