pcb circuits and projects

Printed circuit board or PCB is one of the important things to assemble an electronic circuit. It provides support to the components and makes electrical connection between the parts. In PCB assembling, the components are placed on one side of the Copper laminate passing their pins or leads to the other side through the holes. The pins/leads are then soldered to connect with the PCB tracks. Here explains the easiest method to make a homemade PCB for prototyping.

Here explains the types of general purpose PCBs and the method of circuit construction on a Perf board.Printed circuit board, or PCB, is used to mechanically support the electronic components and to connect them electrically using conductive pathways called tracks etched from copper sheets. Besides etched PCBs, there are Common or General purpose PCBs to make temporary or permanent circuits boards.

ExpressPCB circuit board layout program is a snap to learn and use. Laying out PCBs is easy, even for the first time user. Here are the steps:

• Select the Components in ExpressPCB
  Begin your layout by adding the components. Select the parts from the Component Manager dialog box. Many components (such as connectors) include Digi-key part numbers to make ordering easy.
• Position the Components
  Drag each component to the desired location on your board. The Snap to grid feature makes it easy to neatly align the parts.
• Add the Traces
  Now add each trace by clicking on the pin of a component and dragging the trace to another pin. If you link your schematic file to the PCB, then the ExpressPCB program highlights the pins that should be wired together in blue.
• Edit the Layout in ExpressPCB
  Making changes is simple using standard commands such as Copy, Cut and Paste. Rearrange the parts by dragging them with the mouse. Traces always stay connected to their pins, even when you move things around. You can set the properties of items in your layout by double-clicking on them. For example, double-click on a trace to change its layer or width.

Express PCB download – download

printedcircuitsboards.com published a new article about veroboard design software which allows you to design your electronic circuits on stripboards.