The power supply block diagram many electronic circuits need a direct current dc voltage source but what we commonly find are voltage sources of alternating current ac in order to achieve a direct current voltage source the alternating current input must follow a convertion process like the one shown in the chart below. Canaeurtmt understand the difference of two diagrams unragulated and regulated power supply both are seems to be one i canaeurtmt find a regulating section in regulated power supply block diagram. What is a regulated power supply a regulated power supply converts unregulated ac alternating current to a constant dc direct currenta regulated power supply is used to ensure that the output remains constant even if the input changes a regulated dc power supply is also known as a linear power supply it is an embedded circuit and consists of various blocks. Figure 4 1b block diagram of a basic power supply the final section the regulator does just what the name implies it maintains the output of the power supply at a constant level in spite of large changes in load current or input line voltages now that you know what each section does lets trace an ac signal through the power supply
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