Industrial Grade Voltage Regulators are designed to work well even with an input supply of only a volt or so above the output voltage. The Regulators may use an electromechanical mechanism, or electronic components, depending on the design; it may be used to regulate one or more ac or dc voltages. The Regulators are used in devices such as computer power supplies where they stabilize the DC voltages used by the processor and other elements. The Industrial Grade Voltage Regulators has the feature that the output voltage can only be held roughly constant.
