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- A rectifier is a device that converts an oscillating two-directional alternating current (AC) into a single-directional direct current (DC).
- Rectifiers can take a wide variety of physical forms, from vacuum tube diodes and crystal radio receivers to modern silicon-based diode.
- There are two types of rectifiers: Half wave rectifier and full-wave rectifier.
- Half-wave rectifiers work by eliminating one side of the AC, thereby only allowing one direction of current to pass through.
- Since half of the AC power input goes unused, half-wave rectifiers produce a very inefficient conversion.
- Full-wave rectifier eliminates AC from both the directions hence it is more efficient.
- Rectifier mostly used in Power supply, inverters etc.
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