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Full wave rectification filter circuit .Two rectification circuits are given here. The above circuit is a full-wave rectification circuit, which converts the alternating current into direct current through the rectifying bridge, so that the current passing through the bulb is unidirectional, but due to the large change of the current, the bulb will be on and off for a while, and the frequency is AC twice the source. The following circuit is a full-wave rectification and filtering circuit. Compared with the above circuit, a filter capacitor is connected in parallel at both ends of the bulb. This capacitor can reversely supply power to the bulb when the voltage at both ends decreases, compensating for the reduced current source. The current can stabilize the current flowing through the bulb at around 15mA, so the bulb is always on. Have you learned it.
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