Design and image experimental indicators of DC regulated power supply: (1) Output voltage Vo=+3V-+9V (i.e., the adjustable range of output voltage should include +3V-+9V); (2) Voltage regulation coefficient Sv≦3×10-3, ripple voltage Vo p-p≦5Mv. 1.2 Precautions in the experiment: (1) The transformer is directly connected to a 220V power supply, so pay attention to safety; (2) When connecting the designed circuit on the breadboard, make sure that the positive and negative poles of the diode and capacitor are connected correctly. (3) Choose appropriate experimental equipment to avoid unnecessary damage or waste
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