A full-wave bridge rectifier circuit makes use of both halves of the AC cycle, but unlike the full-wave centre-tap rectifier circuit it does not require:

A full-wave bridge rectifier uses four diodes arranged in a closed loop (bridge) to route both the positive and negative halves of the AC cycle to the load in the same direction. It connects directly across the two ends of the transformer's secondary winding. A full-wave centre-tap rectifier, by contrast, uses only two diodes but requires a specific connection to the exact middle of the secondary winding (the centre tap) to serve as the common ground. Therefore, using a bridge rectifier design allows you to achieve full-wave rectification without needing a centre-tapped secondary on the transformer. Both designs produce pulsating DC and will still require output filtering to provide smooth DC power, making the filtering distractor incorrect.