Linear voltage regulators are regarded as much simpler circuits than switching power supplies. And it is true. They hide, however, some traps which should be avoided when doing professional electronic design.

These circuits transmit a 4 KHz digital signal by means of infra light, The transmitting oscillator has adjustable frequency below 56KHz that is either on or off depending on the modulating signal.

Taking into account the amount of time electronic products have been around us, one would think that choosing the correct power supply would be only a trivial task, just an easy off-the-shelf exercise. However, given that a poorly constructed power supply can easily lead to the demise of the entire product (or just parts of it) it is still one of the most important parts on the schematic.

Although now-a-days cars are mainly built around a sturdy CAN network, and FlexRay is gradually making its way on the market, the LIN is still in place and it is present in many simple automotive electronic control units.