Full Wave Rectifier MFull Bridge Connection for R Load - Controlled Rectifiers - Power Electronics

TL;DR

The full wave bridge rectifier is a more efficient alternative to the half wave rectifier, using four diodes to rectify the AC current and produce a constant DC voltage.

Transcript

click the Bell icon to get latest videos from akira hello friends today we are going to discuss about a full wave bridge rectifier with a resistive load so friends as we discussed in the earlier lecture the efficiency of a full wave rectifier is 81% and the efficiency of a half wave rectifier is forty point five percent so which is very much clear ... Read More

Key Insights

• 👋 Full wave bridge rectifiers are more efficient and widely preferred over half wave rectifiers.
• 😒 The full wave bridge rectifier uses four diodes to control the flow of current.
• 💐 The current flows in the same direction during both the positive and negative half cycles.
• 👋 The rectified output voltage of a full wave bridge rectifier never changes direction.

Questions & Answers

Q: What is the main difference between a full wave bridge rectifier and a half wave rectifier?

The full wave bridge rectifier is more efficient and uses four diodes, while the half wave rectifier uses only two diodes.

Q: How does the current flow through the full wave bridge rectifier?

During the positive half cycle, diodes D1 and D4 conduct, and during the negative half cycle, diodes D2 and D3 conduct. The current always flows in a clockwise direction.

Q: How does the rectified output voltage look like for a full wave bridge rectifier?

The rectified output voltage has the same waveform as the input AC voltage, but it never changes direction due to the constant clockwise current flow.

Q: How does the load current differ from the load voltage in a full wave bridge rectifier?

The load current follows the same waveform as the load voltage, but its peak value is lower due to resistance.

Summary & Key Takeaways

• Full wave rectifiers are preferred over half wave rectifiers due to their higher efficiency.

• A full wave bridge rectifier uses four diodes to rectify the AC voltage.

• The current flows in the same clockwise direction during both the positive and negative half cycles.