What Are Printed Circuit Boards Used for?

In the early days of electronics, when vacuum tubes were king,
all of the various components that made up an electronic device were connected together by soldering them either to each other or to terminal strips and tube sockets. Today, printed circuit boards have made connecting components simpler and cheaper.
What Are PCBs?

Printed circuit boards (PCBs) are thin boards made from an insulating material, with a metal coated surface, sometimes on both the top and bottom. Etches are made in the metal with acid to create pathways for electricity to travel among various components which are surface mounted on the board with solder.

PCB Advantages

The invention of printed circuit boards is one of the factors that has enabled electronic circuits to be smaller, more compact, and contained on a convenient, rugged board. Holes drilled into circuit boards allow components such as resistors and capacitors to be inserted and soldered through automation.

PCBs Are Everywhere

Today, just about every electronic appliance in your home contains a printed circuit board of some type: computers, printers, televisions, stereos, musical instrument amplifiers and synthesizers, digital clocks, microwave ovens, telephone answering machines and even cell phones.

PCBs In Computers

The "motherboard" in a computer is the main printed circuit board that is the heart of a computer. Other circuit boards inside a computer performs functions such as RAM (random access memory), power supplies, modems and video "cards."

The Works in a Drawer

Motorola's Quasar TVs were among the first to use removable printed circuit boards, designed for quick in-home repair.

The characteristics of the electric vehicle power supply circuit board

At present there are two kinds of electric cars, is a kind of electric bicycle and motorcycle, is a kind of electric cars.And their driver is driven by the power supply, thus produce the power circuit board.

Power supply circuit board is outstanding requirements is a high reliability requirements, coating symmetry degree is high, the general has four features:

1, small volume, light weight, volume and weight for 1/5-1/10 of SCR power supply for you plan, expansion, mobile, maintenance and installation.

2, good energy saving effect: the adoption of high frequency transformer, switch power supply conversion efficiency is greatly increased, under normal circumstances a silicon controlled rectifier equipment to improve efficiency more than 10%, the load rate was below 70% when a silicon controlled rectifier equipment to improve efficiency more than 30%.

3, output, high stability, due to the system response speed (microsecond), for, and load change with a strong adaptability for electricity network output accuracy can be better than 1%.Switch power supply, high working efficiency, and high control precision, so to improve the quality of the product.

4, output waveform modulation: easily due to the high working frequency, the output waveform adjustment relatively low processing cost, can be convenient to make in accordance with the technological requirements of the user to change the output waveform.So for working site to improve work efficiency, improve the processing quality of the product has strong effect.

Increasingly competitive in technology today, Wen Defeng technology co., LTD, increasing investment in technology research and development, to cooperate with clients for all kinds of printed circuit board of high, refined, sharp demand, the company introduces Germany, France and other places of advanced production equipment, relying on scientific management, has trained a number of highly qualified professional talent team, at the same time with high quality products, reasonable price, fast delivery time, good after-sales service to serve the broad masses of customers, high quality products to our customers to provide safe and reliable.

For more information, pls kindly contact me: www.wonderfulpcb.com

Flex PCB - What is Flex PCB

Flexible PCB and the birth and development of the PCB, Rigid-Flex PCB gave birth to this new product. Therefore, Flex PCB is flexible circuit board and rigid circuit boards, after lamination processes, according to the relevant process requirements together, forming characteristics have FPC PCB board characteristics.

1.Flex PCB - Production Process：

Because Flex PCB is a combination of FPC and the PCB, Flex PCB production should also have the FPC PCB production equipment and production equipment. First, the combination of soft board electronics engineer to draw a line and shape according to demand, then, can be issued to the Flex PCB production plant, through CAM engineers relevant documents for processing, planning, and then arrange FPC production line production need FPC, PCB production line to produce PCB, after these two soft board and hard board out, according to the planning requirements for electronic engineers, the FPC and PCB through seamless lamination lamination machine, and then through a series of detailed links, ultimately process the Flex PCB. A very important aspect should Flex PCB difficult, more details before shipping, are generally required to conduct the inspection, its value is relatively high, so as not to let the supply and demand sides related loss of interest.

2. Flex PCB - Advantages and Disadvantages：

Advantages: FPC Flex PCB along with features and characteristics of the PCB, so it can be used in some special requirements of the product among the region has some flexibility, but also have a certain rigidity region of the internal space-saving products reduce the volume of the finished product, improve product performance is very helpful.

Cons: Flex PCB production process many, difficult to produce low yields, cast materials, manpower more, so its price is more expensive, relatively long production cycle.

3. Flex PCB - Related Applications
Flex PCB's characteristics determine its application in all areas covered by FPC PCB applications, such as:

1.Mobile telephone

2.Keypad and side buttons, etc.

3.Computer and the LCD screen
Such as motherboards and display
a.CD Walkman
b.Drives
c.NOTEBOOK.

4. New Uses
Components of a hard disk drive (HDD, hard disk drive) suspension circuit and xe packaging board, etc.