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3.1.2.3 Voltage Regulator

A voltage regulator is an electrical regulator designed to automatically maintain a

constant voltage level. A voltage regulator may be a simple "feed-forward" design or

may include negative feedback control loops. It may use electromechanical mechanism,

or electronic components. Depending on the design, it may be used to regulate one or

more AC or DC voltages. For this project, four voltage regulators were used to avoid

each voltage regulator from continuously heat. Each voltage regulator has a serial

number, which is 7812, 7809, 7806 and 7805. The input voltage of voltage regulator

circuit is 12V direct current that supply from the adapter. This voltage regulator circuit

was reducing the voltage from 12V to 5V [5].

Figure 3.6 Circuit Diagram Voltage Regulator

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Witura WT-9001 IP65 Spezifikationen Seite 43