AC & Diode: What Happens When Wave Enters?

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    Ac Blocks Diode
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SUMMARY

When an AC current passes through a diode, the output waveform is rectified, resulting in a unidirectional flow of current. The diode allows current to flow only during the positive half-cycles of the AC waveform, effectively blocking the negative half-cycles. This process transforms the AC signal into a pulsating DC signal. Understanding the behavior of diodes in AC circuits is crucial for applications such as power supply design and signal processing.

PREREQUISITES
  • Basic understanding of AC and DC current
  • Familiarity with diode functionality and characteristics
  • Knowledge of voltage waveforms and their behavior in circuits
  • Understanding of circuit components and their interactions
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  • Study the principles of diode rectification in AC circuits
  • Learn about different types of diodes, such as rectifier and Zener diodes
  • Explore the effects of diode forward and reverse bias on current flow
  • Investigate the use of oscilloscopes to visualize waveform changes in circuits
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Electronics enthusiasts, electrical engineers, and students studying circuit design who want to understand the impact of diodes on AC waveforms.

sanado
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Hey guys, just thought id clarify what happens when an AC current passes through a diode. Say for instance the wave featured in the link below entered a diode, what would it look like once it leaves the diode?

http://www.pcguide.com/ref/power/ext/z_ac.gif
 
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In the simplest sense, what do diodes do?

And also, in the simplest sense, what does the current in an ac circuit do?

Put these together and say what would happen if a diode is put into an ac circuit.
 
We need either a more specific description of a circuit containing a diode, or perhaps a better phrased question.

If the attached waveform (a voltage) is applied across the diode leads, then that is the voltage across the diode leads. Voltages don't "enter" and "leave" a diode.

Or are we wondering about the current through the diode, given the voltage waveform applied across the leads?
 

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