From an idea to a design, through circuit to the PCB and a working product - the workflow for electronic design. A number of electronic design have been realized, ranging from simple breakout boards to fully integrated microcontroller boards, hosting power supply, communication buses and periphery. Whether you require a design, layout or prototype - I will be happy to look into it - even simple designs or layouts. Below are some examples of work done and details of the design stages.
Electronic Circuit Design
There are many different design considerations like power demand and supply, thermal considerations, protection, signal filtering and de-bouncing, signal propagation & attenuation, which go into a design. This results in a circuit diagram and a Bill of Materials. Form here the design can be tested and verified on a bread board or simulated in software. If any changes need to be made these go back into the design and a new iteration of testing is done.
Electronic Circuit PCB Layout
Before the design is transferred onto a PCB there is a testing phase to verify the design on a breadboard or sub systems will be tested individually to verify design assumptions in the real world. Once the design is verified, a first PCB is designed. This involves component placement, trace sizing and routing. When the PCB design is completed a set of gerber files are generated which are then used to produce the PCB. This may be a prototype PCB for further testing or might become the first production version, depending on whether any problems are found in the PCB during testing.
Assembly and Testing
In the breadboard stage the design is verified and tested. Once the prototype or first batch of boards is available they are assembled and tested against the design. a complex design can require extensive testing to eliminate some more elusive bugs or problems. The Oscilloscope trace on the left shows a 50Hz AC electric power supply governed by an Electronic Load Controller. The notches are the SCRs firing to divert the excess grid power power to heating elements.