Combining AC Signals Through an Inductor/Resistor Network

In summary, it's possible to combine two AC signals that are slightly out of phase, but have the same frequency, voltage and current through an inductor, resistor series network. However, doing so may result in a loss of voltage.
  • #1
Idea04
194
1
Is it possible to combine two AC signals that are slightly out of phase, but have the same frequency, voltage and current through an inductor, resistor series network.
 
Engineering news on Phys.org
  • #2
You can combine them anyway, without doing anything. You just might not get a sinewave output.

If you do a phase correction with an L-R network, you will lose some voltage so you may not have signals with the same voltage any more.

If you are thinking about doing this with power generators in parallel, it would be better to get the generators in phase before you connect them in parallel.
 
  • #3
So can inductors and resistors in series align the phases of two AC signals so they add voltages.
 
  • #4
If you have two 10-volt, 200 MHz signals on RG-8 cables, and their phase difference is 90 degrees, put them into a power splitter/combiner like this:
http://www.miteq.com/products/viewmodel.php?model=PD2-120/240-200S
See outline at
http://www.miteq.com/products/viewmodel.php?model=PD2-120/240-200S
Put a 1.25 ns delay in one leg. The power output will be the sum power of the two inputs minus 0.35 dB.
Here is some background theory on power combiners:
http://www.highfrequencyelectronics.com/Archives/Jan08/HFE0108_GrebennikovPart2.pdf
Bob S
 
Last edited:
  • #5
So can inductors and resistors in series align the phases of two AC signals so they add voltages.

Within limits. The output of one such stage will be phase shifted from the input and you could bring it into phase with another signal that is not phase shifted.

However just passing the signal through such a network reduces the voltage output.

Do you have some application in mind? Are these signals sinewaves and at what voltage and frequency?
 
  • #6
The signals are sine waves at 2 volts and 60 Hz.
 
  • #7
Is there a constant phase difference between them? How is it caused?
 
  • #8
Where do the 2 signals come from, and what do you want to do with them?
 
  • #9
Can i add two inverters's output. so that i could get combined value of both.

The output AC from both is exactly at same phase difference, same voltage, same current etc.

Please reply soon.

Thanks
 

1. What is an inductor/resistor network?

An inductor/resistor network is a circuit that combines inductors and resistors to modify or filter alternating current (AC) signals. Inductors and resistors are passive electronic components that can store energy in the form of a magnetic field (inductor) or dissipate energy as heat (resistor).

2. How do inductors and resistors interact in a network?

Inductors and resistors interact in a network through a process called impedance. Inductors have the property of inductive reactance, which resists changes in current flow, while resistors have the property of resistance, which resists the flow of current. In a network, these two properties work together to modify the amplitude, phase, and frequency of AC signals.

3. What are the benefits of combining AC signals through an inductor/resistor network?

Combining AC signals through an inductor/resistor network can provide benefits such as filtering out unwanted frequencies, reducing noise, and changing the phase relationship between signals. This can be useful in applications such as audio signal processing, power supplies, and communication systems.

4. What are the differences between series and parallel inductor/resistor networks?

In series networks, the inductor and resistor are connected in a single loop, so the same current flows through both components. In parallel networks, the components are connected side by side, and the voltage is the same across both components. Series networks have a higher impedance than parallel networks, and the phase relationship between the components is different.

5. How do I calculate the impedance of an inductor/resistor network?

The impedance of an inductor/resistor network can be calculated using a formula known as the impedance triangle. This formula takes into account the values of the inductor, resistor, and frequency of the AC signal. Alternatively, you can use circuit analysis techniques such as Kirchhoff's laws and Ohm's law to calculate the impedance of the network.

Similar threads

  • Electrical Engineering
Replies
13
Views
1K
  • Electrical Engineering
2
Replies
48
Views
2K
Replies
9
Views
2K
Replies
44
Views
3K
Replies
3
Views
545
Replies
10
Views
460
Replies
15
Views
1K
Replies
18
Views
2K
  • Electrical Engineering
Replies
13
Views
2K
  • Electrical Engineering
Replies
25
Views
2K
Back
Top