How to skillfully solder electronic circuit boards for novices

Welding skills of electronic circuit boards

The electronic circuit boards soldered by many beginners are very unstable and easy to short or open. In addition to the unreasonable layout and poor welders, lack of skills is one of the important reasons for these problems. Mastering some skills can greatly reduce the complexity of the circuit reflected in the physical hardware, reduce the number of flying lines, and make the circuit more stable.

1. Preliminarily determine the layout of power and ground wires

The power supply runs through the circuit all the time, and a reasonable power supply layout plays a key role in simplifying the circuit. Some circuit boards are arranged with copper foil that runs through the entire board, which should be used as power and ground wires; if there is no such copper foil, you also need to have a preliminary plan for the layout of the power and ground wires.

2. Good at using the pins of components

The welding of the circuit board requires a lot of jumpers, jumpers, etc. Don't rush to cut off the excess pins of the components, sometimes directly connecting to the surrounding component pins to be connected will get twice the result with half the effort. In addition, for the purpose of saving materials, the cut component pins can be collected as materials for jumpers.

3. Good at setting jumpers

It is especially important to emphasize this point. Setting more jumpers can not only simplify the connection, but also make it much more beautiful.

4. Good at using the structure of the components themselves

A typical example of the component's own structure is used: the touch button has 4 pins, of which two are connected. We can use this feature to simplify the connection, and the two electrically connected pins act as jumpers.

5. Good use of pin headers

I like to use pin headers because they have many flexible uses. For example, if two boards are connected, pin headers and headers can be used. The pin header not only serves as a mechanical connection between the two boards, but also serves as an electrical connection. This is borrowed from the computer's board connection method.

6. Cut off the copper foil when needed

When using the connecting hole plate, in order to make full use of the space, if necessary, a knife can be used to cut the copper foil somewhere, so that more components can be placed in a limited space.

7. Make the most of double panels

Double panel is more expensive, since you choose it, you should make full use of it. Each pad of the double-sided board can be used as a via hole to flexibly realize the electrical connection between the front and the back.

8. Make full use of the space on the board

Hidden components in the chip holder are both beautiful and protect the components.

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