To configure parallel drivers with high-side pass elements, however, the current-sense feedback circuitry must also be on the high side, and it must be able to withstand at least the voltage the ...

"For LED circuits, you can simply tape the LEDs on to the copper traces to make the connection," explains Qi.

The flashing is thanks to LEDs with a built-in, integrated flashing circuit and the nasty noise comes from a piezoelectric buzzer — both are available from electronics stores that sell ordinary LEDs.

The answer is simple – make your own. Inexpensive flexible PCB prototypes are one of the key elements in this process and a perfect complement to 3D designs. CIT Technology have worked with designers, ...