1.6W linear replacement adapter designed with LNK562P, with linear replacement adapter circuit diagram, bill of materials, specification file

RF cable can be customized for other specifications

Summary:

This reference design report describes the design of a switched power supply to replace the line frequency transformer. The linear replacement adapter uses the LinkSwitch-LP Series LNK562P device to withstand 10 kV surges. This is often required to connect to a telephone line such as a modem, cordless phone, and answering machine.

This document includes linear replacement adapter specifications, circuit diagrams, bill of materials, transformer specification files, printed circuit board layout, and performance data.

PCB physical map of 1.6W linear replacement adapter

1.6W linear replacement adapter circuit diagram

PCB layout of 1.6W linear replacement adapter

1.6W linear replacement adapter component list

See the uploading documentation for details (click to download)

MCPCB

What is copper base PCB?

Copper substrate is the most expensive kind of metal substrate, and its heat conduction effect is many times better than Aluminum Base Board and iron substrate. It is suitable for High Frequency Board and areas with large high and low temperature changes and precision communication equipment heat dissipation and architectural decoration industries.
Copper substrates are divided into gold-immersed copper substrates, silver-plated copper substrates, tin-sprayed copper substrates, and oxidation-resistant copper substrates.

The circuit layer of the copper substrate is required to have a large current-carrying capacity, so thicker copper foil should be used, the thickness is generally 35Î¼m~280Î¼m;
The thermal insulation layer is the core technology of the copper substrate. The core thermal conductivity component is composed of aluminum oxide and silicon powder and epoxy resin filled polymer. It has low thermal resistance (0.15), excellent viscoelasticity, and thermal aging resistance. Ability to withstand mechanical and thermal stress.
The metal base layer is the supporting member of the copper substrate, which requires high thermal conductivity, and is generally a copper plate, which is suitable for conventional machining such as drilling, punching and cutting.

Ceramics Base Copper Clad Laminates 6 Jpg

The basic production process of copper substrate:
1. Cutting: Cut the raw material of the copper substrate into the size required in the production.
2. Drilling: Positioning and drilling of copper substrate plates will provide help for subsequent processing.
3. Circuit imaging: present the required part of the circuit on the copper substrate sheet.
4. Etching: Keep the required parts after the circuit is imaged. The rest does not need to be partially etched away.
5. Screen printing solder mask: prevent non-soldering points from being contaminated with solder and prevent tin from entering and causing short circuits. The solder mask is particularly important when performing wave soldering, which can effectively protect the circuit from moisture.
6. Silk screen characters: for marking.
7. Surface treatment: protect the surface of the copper substrate.
8. CNC: CNC machining the entire board.
9. Withstand voltage test: test whether the circuit is working normally.
10. Packaging and shipping: The copper substrate confirms that the packaging is complete and beautiful, and the quantity is correct.

Xpc Copper Clad Laminate Sheet Manufacturers For Pcb Led Bulb Png

In Quick Turn PCB proofing, copper substrates are special boards. In addition to being expensive, they also have certain technical thresholds and difficulty in operation. Some PCB proofing manufacturers find it troublesome or think that the number of customers' orders is small, so they don't want to do it or do less.

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