상황
A hand-crank dynamo produces low-voltage AC that must be rectified and smoothed to power a DC load reliably.
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01
Use a full-wave diode bridge for efficient conversion of both AC half-cycles
02
Place a large electrolytic capacitor across the DC output to reduce ripple
03
Reference the system to a common 0V ground rail
Reuse this pattern for any low-power AC generator, bicycle dynamo, or small wind-turbine supply needing clean DC output.