There are also four types of rectifier circuits.
The first is half - wave rectifier, half - wave rectifier circuit generally only need a diode. For more details, we can look at figure 1 below. In figure 1, you can see that VD conduces at positive half cycle of alternating current and VD closes at negative half cycle. What you get at load R is pulsating dc.
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The second is full wave rectification, which requires two diodes. ASEMI engineering also requires two secondary coils with a center tap. These two secondary coils need the same number of turns to ensure the same resistance. In detail, we can see the figure 2 below. The load RL is the full-wave rectified current, and the output voltage is higher than the half-wave rectified circuit.
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The third is our common full-wave bridge rectification, like ASEMI bridge is also a general case of full-wave bridge rectification, full-wave bridge rectification USES a bridge circuit composed of four diodes, this circuit can only have a single secondary coil of the transformer. See figure 3. The current waveform and output voltage values on the load are exactly the same as those of the second full-wave rectifier circuit.
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The last is the double voltage rectifier. This rectifier circuit USES multiple diodes and capacitors to obtain a high dc voltage.
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