Full-wave rectification and half-wave rectification (AC/DC conversion)

[Guide]The rectification methods that convert AC (alternating current voltage) to DC (direct current voltage) include full-wave rectification and half-wave rectification. In both cases, the forward current flow characteristics of the diode are used for rectification.

Full-wave rectification and half-wave rectification (AC/DC conversion)

Full-wave rectification and half-wave rectification

There are full-wave rectification and half-wave rectification to convert AC (alternating current voltage) to DC (direct current voltage). In both cases, the forward current flow characteristics of the diode are used for rectification.

Full-wave rectification and half-wave rectification (AC/DC conversion)

Full-wave rectification is to convert the negative voltage component of the input voltage into a positive voltage through a diode bridge circuit structure and then rectify it into a DC voltage (pulse voltage). The half-wave rectification uses a diode to eliminate the input negative voltage component and rectify it into a DC voltage (pulse voltage).

After that, the capacitor’s charging and discharging functions are used to smooth the waveform and convert it into a pure DC voltage.

Therefore, it can be said that full-wave rectification is a more efficient rectification method than half-wave rectification that does not use input negative voltage components.

In addition, the smoothed ripple voltage varies according to the capacitor capacity and load (LOAD).

Full-wave rectification and half-wave rectification under the same capacitor capacity and load conditions, the ripple voltage of full-wave rectification is smaller. The smaller the ripple voltage, the higher the stability and the better the performance.

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