Any industrial automation of equipment requires voltage regulators, which smoothen equipment runs by providing stable levels of voltage. Essentially, these devices automatically compensate for the input voltage, thus ensuring constant output levels that protect sensitive machinery from the risks of unstable voltage. There are two main classifications of voltage regulators: linear and switching. In essence, linear regulators are simple yet very inefficient, whereas switching regulators are better in terms of efficiency and, therefore, preferred for high-power applications. These regulators have proven to be very important in power supply systems, motor control, and automation controllers and ultimately improve on reliability and avoid costly downtime. The choice of the right voltage regulator is thus critical for proper function in any kind of industrial application.