What is the best layout process for switching power supplies?

wangerxian

What is the best layout process for switching power supplies? [Copy link]

Engineers who design circuits will have their own design process, and the design process for some circuits will be slightly more stringent. What is the general process for designing switching circuits?

Here are several important steps for designing a switch circuit . You can sort them according to your usual design and give the reasons for the design :

a) Place a transformer or inductor;

b) Arrange the power switch tube current loop;

c) Arrange the output rectifier current loop;

d) Connect the control circuit to the AC power circuit;

e) Arrange input loop and input filter;

f) Arrange output load loop and output filter;

The top three people who give the most convincing answers will receive bonus points from the author's own pocket~

maychang

The layout of the switching power supply may not be completed in one go.

After the initial layout, you should consider how to arrange the pins of the transformer. There are many ways to arrange the output terminals of each transformer winding. Make sure to separate the two pins with safety distance requirements and keep the pins close to the components to be connected. After adjusting the pin position, rearrange it. This process may even be repeated many times.

Fred_1977

1. Functional requirements assessment. 2. Block diagram. 3. Circuit design. 4. PCB design. You are talking about the PCB design process, right?

annysky2012

Drawing process:

The first is to determine the overall dimensions;

The second is to determine the location of the output and input ports

The third is to place the components in sequence from input to output according to the schematic diagram and adjust them in real time.

Fourth, wiring detection and output file

wangerxian

Fred_1977 posted on 2021-12-28 19:57 1. Functional requirements assessment. 2. Block diagram. 3. Circuit design. 4. PCB design. You are talking about the PCB design process, right?

Yes, PCB design process~

勇歌灯饰

Drawing board, you have to draw the border first, then put the components, put a bunch of things you need in front and back, I draw from the beginning to the end, sometimes the big parts have to be moved first,