The product information

Dongguan Changsen Electronic Technology Co., Ltd. is a manufacturing enterprise integrating R & D, production and sales of PCBA circuit boards, focusing on the R & D, design, manufacturing and manufacturing of PCBA circuit boards.
The products are used in all kinds of smart home, integrated circuit, mobile power supply, Bluetooth, headset, audio, PCBA circuit board and PCBA control board.

Dongguan Changsen Electronic Technology Co., Ltd. is a manufacturing enterprise integrating R & D, production and sales of PCBA circuit boards, focusing on the R & D, design, manufacturing and manufacturing of PCBA circuit boards.The products are used in all kinds of smart home, integrated circuit, mobile power supply, Bluetooth, headset, audio, PCBA circuit board and PCBA control board. There are 12 SMT mounters, 6 solder paste printers, 6 reflow soldering machines, 3 wave soldering machines and 5 assembly lines.

It mainly provides the development and manufacturing of PCBA circuit boards for Amazon, Ali international, global resources, Jingdong and tmall. It is sold to European countries such as the United States, Canada, India, Australia, South Korea, Japan, Britain and other European countries as well as China. The annual output value of the company is nearly 60 million.

  • USB: type-C and micro 5V input charging and discharging, and the nixie tube monitors and displays the power in real time; Set three touch keys, power key (middle), increment key + (left), decrement key - (right); Add and subtract key, press once to add or subtract 1, and long press to quickly increase or decrease;

    2022-04-16

  • Crosstalk refers to the mutual interference caused by long parallel wiring between different networks on PCB, which is mainly due to the distributed capacitance and distributed inductance between parallel lines. The main measures to overcome crosstalk are: Increase the spacing of parallel wiring and follow the 3W rule. Insert a grounded isolation line between parallel lines. Reduce the distance between the wiring layer and the ground plane.

    2022-04-09

  • Avoid walking different signal lines in the same direction in adjacent layers, so as to reduce unnecessary inter layer interference; When it is difficult to avoid this situation due to the limitation of board structure (such as some backplanes), especially when the signal rate is high, it should be considered to use the ground plane to isolate each wiring layer and the ground signal line to isolate each signal line.

    2022-04-08

  • Priority of key signal lines: Key signals such as power supply, simulated small signal, high-speed signal, clock signal and synchronization signal are preferred.

    2022-04-08

  • PCBA street lamp is composed of six components: solar panel, solar controller, solar battery, lamp pole, lamp source and accessories. Energy transfer smart solar street lamp solution can provide PCBA board of solar controller or a complete set of street lamp solution.

    2022-04-06

  • Power indication function; Overcurrent protection function; Overvoltage protection function; Short circuit protection function; Standby low power consumption; Automatic shutdown without load; Lithium battery protection function; 2A charge and 2A discharge; Constant temperature function.

    2022-04-02

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