I am a design electronics engineer. When my team design a new circuit, we always base on our knowledge and experience to draft the circuit and layout the PCB. And then test it by "trial and error". For example when designing the EMI filter, we will just estimate the capacitor and inductor value by our experience, and then test it after the prototype is made. If it goes wrong, then we change the value and test again.
I just feel that this method is kind of rough. It is difficult to answer when somebody (for example the customer) asked why we use this value. Will the big, sophisticated, advance organizations, such as the companies making aeroplane or military parts, NASA, use another method? For example will they use simulation software for the hardware design?
I just feel that this method is kind of rough. It is difficult to answer when somebody (for example the customer) asked why we use this value. Will the big, sophisticated, advance organizations, such as the companies making aeroplane or military parts, NASA, use another method? For example will they use simulation software for the hardware design?