Almost all powered products cannot do without power circuit boards, but due to different application areas, there are differences in customizing power circuit boards in terms of current requirements, product specifications, surface treatment processes, and so on.

Firstly, let's understand what types of power supply PCBs include: ① switching power supply ② monitoring power supply ③ high-frequency power supply ④ LED power supply ⑤ production equipment power supply ⑥ digital electronic power supply, etc. For these common power supply circuit boards, the following will explain different types of power supply circuit board products and different process choices.

1. Mobile power circuit boards: These types of circuit boards are usually double-sided or four layer boards, with normal copper thickness, simple circuit design, and surface treatment processes mostly based on tin spraying.

2. Switching power supply circuit boards: Most of these circuit boards are double-sided, with a copper hole requirement of 25um or more. The circuit design is wide, with a larger aperture, and the process is mostly based on tin spraying or gold deposition.

3. LED power PCB board: This type of circuit board uses an aluminum substrate, which has better heat dissipation effect. The board thickness is mostly 1.6 or 2.0mm, and the holes are designed with a 45 ° conical shape. During manufacturing, deep washing is required.

4. Monitoring power supply circuit board: Due to the small size of the product, there are many layers of weight, and the circuit design is relatively dense, with a board thickness between 0.8 and 1.5.

5. High frequency power circuit board: Most of these types of circuit boards have fewer than 6 layers, with a board thickness requirement of 2.4-3.0. The hole copper needs to be greater than 25um, and the copper foil thickness can reach 3oz-4oz. The copper thickness requirement for circuit boards is particularly strict.