Rectifier circuit for AC sources with 180˚ phase offset

In summary, you can rectify AC outputs with a 180° phase shift by connecting the wires in a full-wave bridge.
  • #1
Manuel12
7
1
In a simple 2-phase generator that I am making, I have 2 pairs of oppositely placed copper coils in arrangement similar to this:

Screenshot 2023-01-05 at 11.25.52.png


I would like the generator to power DC devices. My question is: How could one rectify the output from opposing coils? Or, in other words, how could you rectify 2 AC outputs with an 180˚ phase shift?
 
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  • #2
I would expect the windings at 90° would have phase at 90°.
You need to show the rotor magnetic poles.

Opposite coils would have phase at 180°, so would be connected to sum the voltages.
For 180°, reverse the connections, or wind the coil backwards.
Use two full-wave bridge rectifiers, connect the DC outputs in parallel.
 
  • #3
Baluncore said:
I would expect the windings at 90° would have phase at 90°.
You need to show the rotor magnetic poles.

Opposite coils would have phase at 180°, so would be connected to sum the voltages.
For 180°, reverse the connections, or wind the coil backwards.
Use two full-wave bridge rectifiers, connect the DC outputs in parallel.
By winding the coil backwards, do you mean winding opposing ones in opposite directions to each other? Just want to check.
 
  • #4
Manuel12 said:
By winding the coil backwards, do you mean winding opposing ones in opposite directions to each other? Just want to check.
You are now aware that voltages can add or subtract, depending on how you wind or connect the coils.

How many North poles are there on the rotor?
How many South poles are there on the rotor?
 
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  • #5
Baluncore said:
You are now aware that voltages can add or subtract, depending on how you wind or connect the coils.

How many North poles are there on the rotor?
How many South poles are there on the rotor?
One north pole on one half of the cylinder, one south pole on the other
 
  • #6
Manuel12 said:
One north pole on one half of the cylinder, one south pole on the other
The output of the windings will be in quadrature, which means 90°.

You are building a two phase alternator with four wires going to the rectifiers.
TwoPoleTwoPhase.png
 
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1. What is a rectifier circuit for AC sources with 180˚ phase offset?

A rectifier circuit for AC sources with 180˚ phase offset is a type of electronic circuit that converts alternating current (AC) into direct current (DC) by utilizing a diode bridge and a transformer. It is specifically designed to work with AC sources that have a phase offset of 180˚, meaning the positive and negative cycles of the AC signal are inverted.

2. How does a rectifier circuit for AC sources with 180˚ phase offset work?

The circuit works by using a diode bridge, which is a combination of four diodes arranged in a specific configuration. The AC signal is fed into the diode bridge, and the diodes only allow the positive half of the signal to pass through, while blocking the negative half. This results in a pulsating DC signal, which is then smoothed out by a capacitor to produce a steady DC output.

3. What are the advantages of using a rectifier circuit for AC sources with 180˚ phase offset?

One advantage is that it allows for the conversion of AC sources with a 180˚ phase offset, which is a common occurrence in three-phase power systems. Additionally, this type of circuit has a simpler design compared to other rectifier circuits, making it more cost-effective and easier to implement in electronic devices.

4. Are there any limitations to using a rectifier circuit for AC sources with 180˚ phase offset?

One limitation is that the output of the circuit is not a pure DC signal, as it still contains some ripple. This can be mitigated by using larger capacitors or adding additional filtering components. Another limitation is that the circuit can only handle a specific range of input voltages, and exceeding this range can damage the components.

5. What are some common applications of a rectifier circuit for AC sources with 180˚ phase offset?

This type of circuit is commonly used in power supplies for electronic devices, such as laptops, televisions, and home appliances. It is also used in industrial settings to convert three-phase AC power into DC power for motor drives and other equipment. Additionally, it is used in renewable energy systems to convert AC power from solar panels or wind turbines into usable DC power.

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