All Questions
Tagged with rectifier full-bridge
25 questions
0
votes
3
answers
208
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Power output of a full bridge diode rectifier
Assume a simple circuit with a 12 V (RMS) AC supply and a 100 ohms load resistor. The power dissipated is P = V^2/R = 1.44 W.
Now assume that a full bridge diode rectifier (without filtering) is ...
- 21
2
votes
2
answers
471
views
What is the average value of current in uncontrolled rectifiers with rl Load
I am trying to calculate the average value of a current in single phase rectifier half wave and in the full wave with RL Load.
The thing that I am finding interesting is that in all the tutorials and ...
- 25
2
votes
1
answer
165
views
Center tap vs diode bridge rectifier in Multisim
I made a full wave circuit in Multisim using a center tap. The result I got confuses me. I am expecting a full wave rectified sinewave but I keep getting a square wave. Also, the voltage in the ...
user336518
0
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0
answers
80
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What is the most efficient circuit to control a 3-phase controlled rectifier circuit with the ability to control the firing angle?
I am trying to design a board to control a 3-phase full wave rectifier with the ability to control the firing angle (alpha) through a potentiometer or a selector, and I was wondering what are the most ...
- 366
0
votes
1
answer
755
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Three-phase full-wave bridge converter maximum firing delay
According to the textbook Power System Stability and Control by Prabha Kundur, the maximum firing delay of a thyristor is 180° with the following explanation:
Why is he considering eb with ea? Doesn’...
- 388
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1
answer
101
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How to short half of the secondary winding to the bridge rectifier? [closed]
How do I modify this circuit into a half-shorted one?
- 11
1
vote
2
answers
119
views
What will the output voltage will look like if we have non sinusoidal AC paired with capacitor?
I am currently studying for exam and a lot of questions are popping up in my head.
What will Uout of a full wave bridge rectifier with a capacitor look like?
I am talking about square, trapezoidal, ...
- 13
0
votes
1
answer
110
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Full wave active rectification for lower voltages?
I have been following these youtube tutorials on active rectification to learn more about the topic.
https://www.youtube.com/watch?v=VR456CsHYx4
https://www.youtube.com/watch?v=arvNukW-jeo
I simulated ...
- 548
1
vote
2
answers
617
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Why does a rectifier not short circuit?
Why does the current in a rectifier circuit not go through the diodes marked with the question marks in the picture and create a short circuit when the current is returning from the negative side of ...
- 11
0
votes
0
answers
110
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Pitfalls of using only two diodes in a "full wave rectifier"?
Scenario:
I have a small signal from a Piezo element which I am amplifying using a fully differential amplifier. Thus, my gained output from this In-amp are "two" (sine) waves inverse of ...
- 201
0
votes
1
answer
5k
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How do you find the peak-to-peak ripple voltage of a full wave bridge rectifier?
The 32VRMS secondary of a transformer feeds a full wave rectifier and capacitor filter as shown in
the circuit.
The peak-to-peak ripple of the output voltage of this circuit needs to be less than 1V ...
- 131
0
votes
2
answers
634
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How do I calculate the average voltage of this wave?
I need to calculate the average voltage of the wave below, the DC voltage is 120 V , the curve starts at 21.65 degrees and the peak voltage is 325.269 V. The solution is 221.3 V. This is from a ...
- 197
1
vote
2
answers
258
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In a half-wave uncontrolled rectifier with RL load why does the voltage spike when current reaches 0A?
I understand that the inductor creates a negative voltage to oppose the change in current but I don't understand why the voltage spikes up instantly when the current reaches 0A.
- 197
0
votes
1
answer
1k
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Schottky diodes as full bridge rectifier
I need to make a 75-100VDC high current power supply. I do not have any high current diodes or bridge rectifier ICs but I do have a load of scrap switching power supplies.
Could I take 4 of the (lack ...
- 405
2
votes
1
answer
794
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How to select high frequency rectifier capacitor?
Can I use aluminium electrolytic capacitor after a full bridge rectifier?
My operation frequency is 200 kHz with output voltage of 100 V.
Based on this paper: "Analysis and Design of Load-...
0
votes
1
answer
172
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Mistake in reading a rms voltage
I got a really strange result. I've build a full-bridge rectifier with a capacitor filter. And I used the following values \$\text{C}=500\cdot10^{-6}\$ and as a load \$\text{R}=1000\$. The maximum ...
0
votes
1
answer
402
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Battery charger filter circuit
I'm working on a project where I have to make a powerfull battery charger. And someone I'm working with told me that it is a good idea to have mains voltage connected to a full bridge rectifier and ...
- 11
0
votes
1
answer
75
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Current limiting resistors for preventing shorts at power supply turn-on [duplicate]
In a text it mentions about a power supply that the filter cap will act as a short at initial turn-on. Below I showed these points as A and B:
In this case, the diode will have a surge current Is. ...
- 1,905
1
vote
3
answers
511
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what kind of three phase full wave rectifier should we use?
We have the following generator: Permanent Magnet Generators. For the project we would like to use this converter. Between this generator and converter we've to convert the three phase voltage to an ...
- 21
-3
votes
1
answer
185
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How to get a +15v&-15v DC from variable AC source using Full-wave rectifier? [closed]
How to get to DC voltages (+15v & -15v) by using Full-wave rectifier, and if I change the AC source, the output stay stable, i.e Independent on AC source...
any help?
.....
I want to change AC ...
1
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2
answers
10k
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LC Filter for a Full Wave Bridge Rectifier?
According to what I've read on a few websites and PDFs (http://www.irjes.com/Papers/vol2-issue6/Version-1/E02064249.pdf is an example) using an inductor-capacitor filter to assist AC to DC ...
- 403
2
votes
1
answer
366
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Why would someone prefer halfwave rectifier over bridge rectifier? [duplicate]
The other day, out of curiosity I was measuring the current wave shape of a laptop charger. The wave shape indicated a spike only in one half cycle. I'm guessing half wave rectifier here.
One thing ...
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1
vote
1
answer
4k
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LTSpice Full Wave Controlled Rectifier Erronous SCR Breakover
I'm attempting to simulate a full wave SCR rectifier:
However it is not behaving correctly. In my setup V3 controls one pair of SCRs, and V4 controls the other. All the math on the side is just for ...
- 1,154
8
votes
4
answers
2k
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Why does current flow from the most positive to the most negative in three phase system?
I put the following circuit in a simulator to see how it works. I understood it but I have a question:
At the time of the vertical green line, The simulator shows me that the current flows from the ...
- 3,854
5
votes
2
answers
645
views
Another 'What is this component?' question
I have looked through all the other 'what is this component' questions and have not found my component. I am looking for the component in the red box. It is from a rectifier circuit off a 1973 9.8 hp ...
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