Questions tagged [bridge-rectifier]

An arrangement of four or more diodes in a bridge circuit configuration which provides the same output polarity for either input polarity. It is used for converting an alternating current (AC) input into a direct current (DC) output.

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Function of capacitor on the output of a bridge rectifier

What is the function of capacitor C in this diagram?
Kim Sr Luy's user avatar
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1 answer
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Ground connections around bridge rectifier in flyback converter

I am designing a flyback converter and I am being told to make the ground net connections as shown in the image below. I think this is colossally dumb because it eliminates PRI and SEC isolation. I ...
sparaps's user avatar
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What is a bridge rectifier doing in this TRIAC regulator?

Recently I purchased a TRIAC-based mains regulator and took a look inside. It's a very typical TRIAC regulator, except it contains a bridge rectifier (DB207S), the purpose of which is not clear to me ...
Борат Сагдиев's user avatar
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Are Bridge AC to DC Rectifiers using thyristors still considered Linear Rectifiers considering their switching mechanism of action?

While I tried not to make the title confusing, Whether if the question is about Non-Linear/Linear PSUs or just the Rectifier circuits, I believe This one covers both matters. Considering that the ...
Sam Jahangiri's user avatar
4 votes
3 answers
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How does this negative voltage rail work?

Rod Elliot has a dual bench power supply project on his web site (project 223, see schematic below). I'm trying to understand his method for adding a low voltage negative rail without using an ...
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Forward biasing of diode bridge in a discontinuous mode operation of a three phase buck-boost derived power factor corrected converter

In this paper, they said that during mode 1 the diode bridge is forward biased because the output capacitor voltage is greater than peak line to line voltage but during mode 2 they are forward biased. ...
God Pool's user avatar
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Parallel diodes in a single package - is it really double current rating?

As an example: https://www.onsemi.com/pdf/datasheet/mbrb20100ct-d.pdf I've seen discussion where it says diodes in parallel may not increase the current capacity. BUT the datasheet clearly says it's ...
mrjayviper's user avatar
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Choosing filter capacitor and inductor for AC to DC rectifier

I am designing a three phase AC to DC rectifier. This DC output will be connected to a 6 IGBT bridge. That IGBT will be controlled using SVPWM technique to control a PMSM motor. What factors do I need ...
Syed Kumayl Raza Moosavi's user avatar
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2 answers
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Ways to charge a VERY LARGE capacitor in a 3-phase bridge rectifier circuit

I need to charge two 1500uF-450V capacitors off of a 3-phase 220Vrms-60Hz line using a very robust bridge rectifier (datasheet) as well as both capacitors datasheet (datasheet). Here's the simulation ...
Iron Maiden's user avatar
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Diodes bridge rectifier with center tapped transformer

I need help with this homework question I have trouble solving it. the thing I don't understand is that when the voltage is positive the only diodes that are active are D1 and D3 and I'm not able to ...
CircuitAz's user avatar
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How to use measured values to obtain an experimental ripple factor for a full wave bridge rectifier with no filter

Hello this is my first post. This is my thought process: I can use the following equations to calculate the theoretical ripple factor for a full wave rectifier: Through simplifying, it can be ...
MatRanc's user avatar
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PIV in full wave bridge rectifier vs. full wave rectifier

I know that in a full wave rectifier the PIV of the diodes is 2*VP, whilst in a full wave bridge rectifier we have just Vp. It is also said that the bridge configuration is more suitable in ...
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Why connect a 3-phase alternator's star-point to a rectifier bridge?

I noticed while troubleshooting a Denso alternator that the stator's star point was connected to the rectifier bridge. While probing with a multimeter, I think the schematic looks something like the ...
Kenn Sebesta's user avatar
3 votes
2 answers
382 views

How can I calculate the peak to peak ripple voltage of a rectifier circuit with an LC filter?

What is the formula for finding the peak to peak AC ripple voltage across the load resistor for this LC full wave bridge rectifier circuit? The rectifier output is a pulsating DC voltage which has ...
Alex's user avatar
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Is this supposed to be the output of this circuit?

I used LTspice to simulate a oscillator circuit to convert DC to AC. The oscillator is then connected to a class AB power amplifier to increase the circuit current. The load of the Class AB amplifier ...
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Are there any extra steps I can take to prevent noise on the output of this circuit?

I made a rectifier/boost converter PCB board in order to power a USB type-C charge module. The USB charge module will solder into the output posts on top of my board. And, since the charge module ...
soconnoriv's user avatar
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Phase on full wave bridge rectifier

I have a seemingly simple question: I have a full wave bridge rectifier that is connected to 220 VAC. When I stick a phase probe on it's (-) negative pole, I see it's light: And that's something I ...
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Could I use a bridge rectifier with a capacitor to make a measurable DC voltage to measure the output of the detector coil in an NMR?

I'm making an nuclear magnetic resonance (NMR) detector. I'm wondering if I could use an bridge rectifier along with an capacitor to smooth out the output to DC. Then I could measure it with an ...
Not My Name's user avatar
1 vote
1 answer
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Issues with a full bridge rectifier, receiving output approximately half of the expected output

I have receiver circuit for a wireless power transfer circuit. I have connected the circuit as shown in the image below. The circuit has a full bridge rectifier (DBS103S-T) which is then followed by a ...
EmeraldMonk's user avatar
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2 answers
144 views

150 VDC power supply for motor

I am looking to design a power supply but confused on specifics. I have a mechanical engineering background, but do not have much experience working with electronics. This is for a personal project I ...
Reynolds's user avatar
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5 answers
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Why is this rectifier bridge using double diodes? [duplicate]

While reading some old (paper) books, I found this as an example but without further explanation: Why does it use double diodes? I don't see anything about this elsewhere. Does this increase the ...
Aram Alvarez's user avatar
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2 answers
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Why is this voltage tripler actually quintupling?

Today I was experimenting with voltage doublers and tripler for a hobby project demanding a voltage I can't directly pull from the transformer I have. The following measurements confuse me: I was ...
Aram Alvarez's user avatar
2 votes
0 answers
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Charging an 18650 Li-Ion cell via a bicycle hub dynamo

I'm interested in building a buffer battery for a 12V GPS tracker using a single 18650 Li-Ion cell. It will be mounted on a bicycle and unfortunately I haven't found a design for a tracker including ...
J. Komets's user avatar
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ZVS circuit to generate high DC voltage

I'm trying to design a high DC voltage generator to create a voltage differential between the upper and the lower part of a cloud chamber I'm building. I'm trying to use a ZVS circuit to amplify an ...
Luke__'s user avatar
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3 answers
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Bridge rectifier circuit with a step-up transformer

I have been experimenting with a full-wave bridge rectifier in LTspice. I am trying to step up 120 V AC/60 Hz to 1 kV DC for a load of around 2 kΩ. The step-up transformer has a ratio of 25:9. The ...
Dimitar Zhekov's user avatar
26 votes
5 answers
2k views

Can two BJT transistors work as a full bridge rectifier?

It is known that a BJT transistor looks like two diodes back to back (or head to head). With this in mind, theoretically we should be able to build a full bridge rectifier with 2 BJT transistors, one ...
virolino's user avatar
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1 answer
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How can I properly measure the output of a full wave rectifier using an oscilloscope and a function generator?

I would like to measure the output signal from a full wave rectifier in a proper way using an oscilloscope. The sine wave comes from the function generator and is 10 Vpp. Both devices are mains ...
Jerzy Przezdziecki's user avatar
3 votes
1 answer
435 views

MOSFET TO-220 heat sink pad is electrically connected to drain. Can I solder wire or trace directly onto heat pad, instead of drain pin?

I have a board-layout where a lot of things would be easier if I could solder to the metal-pad of the TO-220 N-channel MOSFET, instead of the drain pin. Apart from: "Metal pad was intended for ...
Jens Overby's user avatar
1 vote
1 answer
149 views

Maximum load capacitance and rating for fusing for bridge rectifier

I'm looking for a replacement for an old bridge rectifier and I've found one (Vishay B80C1500G), but I'm curious about two parameters of the bridge rectifier: Maximum load capacitance Rating for ...
Krystepan's user avatar
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1 answer
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Full-bridge rectifier is not working

I tried to copy the full-bridge rectifier circuit diagram but for some reason it's not working. I think the current is not flowing from the high-voltage circuit device because I tried to hook up a ...
peteblank's user avatar
5 votes
4 answers
752 views

Is the RMS value the same after you pass it through a full wave bridge rectifer?

Is the RMS value the same after you pass it through a full wave bridge rectifier? That is if the value was 230VAC (RMS) before the rectifier will it still be so after the rectifier? (ignoring any loss ...
aaq's user avatar
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Half Bridge SMPS design

I'm trying to design a half-bridge SMPS. However not able to get the desired output. My doubt lies in the transformer sizing and it's implementation in LTspice. Specs: Vs=220 V RMS AC Desired DC ...
ORion's user avatar
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2 answers
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Double Valued Voltage in Rectifier with Capacitor Filter

When a capacitor is charged in a full wave rectifier, as shown below, the load voltage closely follows the AC input voltage, less some 0.7V. When the input voltage falls from its peak, the voltage ...
Bruno Nowak's user avatar
1 vote
1 answer
291 views

My diode bridge rectifier circuit in LTspice does not work properly

I am trying to make a model of a diode bridge rectifier in LTspice (it has to be connected to a transformer as it's part of a larger project). I have tested the transformer and the rectifier ...
Aryan's user avatar
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5 votes
3 answers
778 views

Bridge rectifier speed

I pulled an old computer power supply apart and salvaged a bunch of parts. One of them is a GBU806 bridge rectifier. Wanting to learn about these things and play with my new toys, I hooked up a signal ...
LarryBud's user avatar
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6 votes
2 answers
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What are these four diodes doing?

I am working with a MC33186DH1 5A H-bridge IC. It seems to simplify things quite a lot. The data sheet shows this simple schematic: I found a break out board that mostly follows that design: My ...
AndrewT's user avatar
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1 answer
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Can bridge rectifier diodes fail in a way that allows AC through? [closed]

KBPC5010 bridge rectifier: A new gate opener which worked for two weeks suddenly stopped working. I notice that the DC motors buzzed like DC motors without a direction impulse (usually a start ...
tractorjohn0's user avatar
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3 answers
1k views

AC to DC rectifier and smoothing

I'm trying to understand how you get a DC signal from an AC signal being rectified. It produces a ripple waveform and the signal gets "smoothed" out using a smoothing capacitor. Is the ...
Amadeus 's user avatar
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Simulation of an AC-DC circuit

What causes the total harmonic distortions to increase while you increase the filter inductance of an AC-DC circuit with a resistive load and an output capacitor.
Prince Aduse-Poku Nketiah's user avatar
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1 answer
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SMPS Replacement Parts: UF5408 instead of 1N5408 in the bridge rect.. / Also UF5408 instead of TO220 25ns 5R06X fast diode in bridge followup

What makes a diode so special? We know (?) that rectifier diodes are heavily optimized for low forward drop. Uf5408 on the other hand, have considerably more forward drop while it provides fast trr. ...
NerdyNerdie's user avatar
1 vote
1 answer
725 views

Choosing capacitor for the filter of a three phase full wave rectifier

I am designing a power management unit (PMU), which takes the power from an alternator (alternator output: three phases, 30-85VAC, 35-130Hz, Max current: 20A). I want to reduce the ripple using ...
Pablo's user avatar
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1 vote
2 answers
389 views

Capacitor amplifying voltage in bridge rectifier

I made a bridge rectifier using 4 1N4007 diodes, a capacitor filter with capacitance of 470 micro farad (25V), and a resistance of 1k ohm as a bleeder resistor and a step down transformer with ...
Frozen God 's user avatar
1 vote
2 answers
390 views

Full bridge rectifier and resonance for wireless power transfer in the receiver circuit

I was wondering which is the most suitable method to set up the receiver circuit for wireless power transfer circuit. Currently I have a circuit with the tesonance tank, i.e., the receiver coil and ...
EmeraldMonk's user avatar
0 votes
1 answer
224 views

Full-wave bridge rectifier output not correct

I am testing a full-wave bridge rectifier built from four diodes. The input is taken from a function generator. The simulated circuit is working (image added). The problem is that the output I got ...
FutureEngineer's user avatar
1 vote
1 answer
196 views

SS34 in-line Schottky alternative

Is there an inline alternative to this part I can replace it with? With my limited electronics knowledge and the ability to google I know this is a surface mount diode rectifier but that’s about as ...
Daniel Sinclair's user avatar
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1 answer
116 views

How to determine the output frequency of a full-wave rectifier using an oscilloscope?

Input frequency: 60 Hz. Theoretically, I should get a 120 Hz output frequency.
walter's user avatar
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3 votes
3 answers
236 views

Confusion about DC output voltage in this circuit

I am building a transformerless power supply to power 60 RGB color changing 2 pin LEDs in series from 230 VAC mains. These LEDs need DC to function properly. In the circuit below, I understand that ...
Sumedik's user avatar
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1 answer
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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?
walter's user avatar
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2 votes
1 answer
366 views

Three-phase mains AC/DC conversion to 12 V

I am trying to power an Arduino for a DIY power quality/meter project. It has to work in scenarios without neutral (three-phase delta) so it can still work in case of neutral loss or for applications ...
rodv92's user avatar
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0 votes
2 answers
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Are there active rectifiers that consume whole sine wave?

Basic rectifiers use mostly the top of the sine amplitude (when the sine gets above the capacitor's voltage), which results in the sine amplitude tops being cut. Are there rectifiers that consume ...
Ri Di's user avatar
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