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.

Filter by
Sorted by
Tagged with
1
vote
2answers
96 views

230VAC to 230VDC converter for flicker free LED construction lights for use in videography/photography

We use LED construction lights for illuminating a photo or video set. As espected the lights flicker with the mains frequency. While in some cases this can be compensated with the right camerasettings ...
1
vote
2answers
2k views

Full-wave rectifier with pi-filter

For a project I'm working on, I've to calculate a function for the output voltage of this filter: The things I calculate: The input voltage: $$\text{U}_{\text{in}}\left(t\right)=\hat{\text{u}}\sin\...
1
vote
2answers
99 views

I'm trying to learn how to make these circuits but have no clue if I'm on the right track? [closed]

I've recently been doing some online tasks but I am really struggling to understand how build this circuit in multisim. I am also struggling to calculate the values listed in 2. and have tried to find ...
5
votes
3answers
657 views

Why AC supply is rectified first before stepping voltage down?

I have opened one of my phone chargers and was trying to understand how it works.. I found IC MB6F just at AC input which came out to be a bridge rectifier. My question is why AC is first rectified ...
2
votes
1answer
63 views

What can I use to supply 220V DC to this motor?

I have a small 220VDC motor I would like to drive via a speed controller, so I can continuously adjust the speed. I'm in Australia with 240V mains, and I also have an adjustable 0-220V AC controller. ...
0
votes
1answer
44 views

Deliberating shorting PTC to toggle between FBR and HBR

We're designing a board that needs to interface with a variety of different furnace control boards, some of which have full-bridge rectifiers and some of which have half-bridge rectifiers. Depending ...
1
vote
1answer
50 views

Diode bridge rectifier convert 13.5v ac to 17v dc

i just make a voltage rectifier as shown below Four IN4007S diodes one 15k ohm resistance one 25v 2200uF capacitor I have a 220v->13.5v transformer, and transformer output is supposed to convert ...
0
votes
2answers
319 views

Rectifiers in parallel - mosfet

I see the question has been asked a few times about using rectifiers in parallel to get a higher current rating and this is not advisable however I wanted to ask how this would apply to a active ...
1
vote
1answer
108 views

What does PA1 do in this schematic?

Original document:http://www.st.com/content/ccc/resource/technical/document/data_brief/group0/95/79/2a/ed/d0/a0/4f/46/DM00263698/files/DM00263698.pdf/jcr:content/translations/en.DM00263698.pdf The ...
-2
votes
2answers
85 views

Alternative to center tapped transformer [closed]

I would like to replace a center tapped transformer, which is directly connected to a full bridge rectifier, by two DC lab power supplies. Does that make sense at all? The power connector goes ...
6
votes
3answers
890 views

Converting 8V AC to 8V DC - bridge rectifier gets very hot while idling

I am tinkering with an Arduino and recently had to convert 8V AC to 5V DC in order to run it. The project is a custom doorbell, which gets the power from the doorbell transformer (transformer is ...
2
votes
1answer
54 views

Rectified current transformer output is asymmetric

I'm using a current transformer (CS4200V-01L) to measure the current in a half-bridge. I'm facing an issue where the signal out of the current transformer is asymmetric, almost as if the current ...
0
votes
1answer
20 views

Average Voltage of a 3phase full wave bridge diode rectifier derivation

Why three phase bridge rectified waveform is integrated over the half period \$\pi/6\$\ to find the average voltage? Should it not be integrated over \$\pi/3\$\, as the wave form repeat itself after \$...
2
votes
4answers
146 views

Paralleling output of multiple BLDC motors used as generators

First of all, I apologize for anything stupid I say as I am not yet well versed in the proper technical terms and schematics. I wish to use several identical BLDC motors that will be spun at the same ...
2
votes
3answers
98 views

Heatsinking considerations for Common Cathode Rectifying Diode

I am using this as rectifying diode in full bridge configuration in one of my power supply designs. My questions are regarding heatsinking of the diodes. They are as follows: Do I need to use ...
3
votes
3answers
1k views

Why am I getting a half-wave rectified output when i am using a full-wave rectifier?

I have recently gotten back into electronics and have access to a lab with a signal generator and oscilloscope. I have been trying to teach myself how to use this equipment by building small and ...
-1
votes
1answer
117 views

What is the purpose of these diodes?

What is the purpose of these didoes? I couldn't find it because I don't know it's name. Thank you. simulate this circuit – Schematic created using CircuitLab
0
votes
1answer
75 views

Current consumption calculation + Full wave Bridge rectifier

I am facing to calculate the current consumption in a segment of a circuit as shown in the picture below.I have used the formula (showed in the picture) without considering the impedance of the ...
0
votes
1answer
37 views

Ltspice Full-wave rectified signal issue

I have done a simple simulation with Ltspice with a bridge diode rectifier as shown with the picture below. However I have observed an issue in the shape of the output voltage and not the current ...
0
votes
1answer
67 views

Full-wave rectified signal issue

I have done a simple electronic circuit with a bridge rectifier diode and I have observed an issue when I display the output signal. The output signal on some harmonic doesn't reach the 0 point as ...
3
votes
4answers
549 views

How to avoid voltage drop when using full bridge rectifier as reverse polarity protection

I found a couple of old bridge rectifiers. After reading some docs and tutorials about reverse polarity protection decided to give them a try. The problem is nobody offered a solution against the ...
1
vote
0answers
31 views

How to choose high frequency inductors for high voltage line filtering?

I saw these inductors 680 uH (RL-1294-680) in each power line like shown below. The line to line voltage is 480 VAC. The inductor used has a saturation current of 280 mA. So I suppose I shouldn't ...
0
votes
0answers
46 views

SiC rectifier Q value vs capacitance

I am choosing between schottky for a bridge rectifiers. But I can understand how to choose a SiC based on the parameters for a rectifier application. I want the fastest 2A SiC diode (for lowest noise)...
9
votes
4answers
3k views

Will my circuit charge the battery and power Arduino?

I am currently attending High School, so I don't expect too much here. I simply want to know all the recommendations for this circuit (Capacitor values, etc). But I mainly want to know if this ...
3
votes
2answers
270 views

Tesla free energy collector

I'm trying to see how this circuit works: This is taken from http://www.instructables.com/id/TESLA-FREE-ENERGY-COLLECTOR/. I tried the circuit with 1n4148 diode and I can see a voltage on the ...
0
votes
0answers
29 views

LTspice DB207 Bridge Rectifier Model

I have breadboarded a 6/12VAC to variable DC power supply that I want to analyze before hard wiring. It uses the DB207 bridge rectifier chip and I cannot find a LTspice model for it. Does anyone have ...
0
votes
0answers
69 views

220 volt ac to 12 v dc converter without voltage regulator

I want to design Additional RC Filter. My input is 220V AC and I want to observe 12 V DC output. I am designing 100 Hz with a full-wave bridge rectifier. My question how can I find the output of ...
6
votes
3answers
189 views

Converting a sprinkler system's 24V AC outputs to 3.3V DC logic inputs

I am working on a system that can detect which of the AC outputs on a sprinkler box is on and for how long. The sprinkler box has one common wire and then 18 connections that output 24V to open ...
2
votes
1answer
128 views

Can I use DC to run an AC device in some cases? [closed]

I think there may be devices specified to use alternating current (AC) which can run supplied with direct current (DC) instead. There are devices which depend on AC in some fundamental way, like a ...
1
vote
1answer
40 views

Rectification voltage

I designed this power supply and simulated in Multisim 13.0, and noticed that the output of the full bridge was higher than that of the input to it. Would this have anything to do with the ...
0
votes
3answers
83 views

Choosing capacitance for recifier

So I'm trying to use a couple of rectifiers. Specifically, the "NTE5326" and the "36MB120A." I've tried following videos on how to calculate for a smoothing-capacitor but to no avail. If you use ...
0
votes
1answer
70 views

What is the difference between commutation number and pulse number in?

My question is about bridge rectifiers in power electronics. I guess the jargons are too vague, so i quote the exact definitions from my book which i don't understand at all: m represents the ...
0
votes
1answer
138 views

AC mains rectifier issue

I built a simple full bridge rectifier with AC Mains input, but I noticed that: When the input is 220 V rms the DC output is only 293 V, but I expected the DC output voltage to be 220 x sqrt(2) = ...
0
votes
1answer
74 views

Unmarked Bridge Rectifier

This is out of a 600 watt computer power supply (CoolMax ZX600) and I don't know how to identify it without markings or a schematic and hoping someone can help. The PCB spot for this is labeled BD1 ...
0
votes
1answer
30 views

How can I create a moped DC source from the alternator using the chassis as common GND for both AC and DC?

I need to convert from AC to DC the output of the red wire coming from the right stator coil (marked with R) which is the one that feeds the lamps. The idea is to convert to DC then regulate the ...
2
votes
1answer
178 views

High current, low voltage capacitors

I'm putting together a high current (200A+), low voltage (<5v) rectifier circuit. I have sufficient bridge rectifiers, but to smooth out the waveform I need a strong enough capacitor bank. Besides ...
0
votes
1answer
65 views

Need help determining smoothing capacitor(s) for rectifier

I am making a rectifier for a single N-Scale train building. It takes DC, but the train controller gives out 19VAC. I have 4 1N4001s and some capacitors, but probably not the right size/uf. I only ...
-2
votes
3answers
277 views

Why Is There Negative Voltage at the Anodes of Two Rectifier Diodes in this Circuit?

i've been trying to figure out how this PSU in my amplifier is working by studying the schematic, and would like to check that my assumptions are correct, but also, as per the title, i'd like to ...
4
votes
6answers
2k views

Bridge Rectifier Fails When AC Inputs are Shorted

I am working on a design that involves powering a 3.3V microcontroller off a doorbell transformer but I am running into an issue with the bridge rectifier failing when the AC inputs to the rectifier ...
1
vote
1answer
312 views

is it ok to power a 90v dc motor with 170v dc and pwm?

I need to control a 90v dc motor, the thing is that I dont have a way to get a 90v suply so I just rectified the ac voltage and got 170 volts, without any load and filter caps, as far as I know this ...
1
vote
0answers
569 views

12VAC to 12VDC Converter Requirements for RGB LED Controller

I have an outdoor lighting transformer (operating at the usual 12VAC) that I want to add a strip of LED lights in a new run. The transformer has two legs, each ...
5
votes
3answers
3k views

Storing the charge from a MOSFET Bridge Rectifier

I am using the following MOSFET Bridge to harvest AC bursts, that come from an electromagnetic transducer. In front of this circuit is a supercapacitor I have added. I read the following on a ...
0
votes
0answers
55 views

Difference of single phase rectifiers

I am trying to understand the difference between the following rectifiers: What would be the difference between these two output voltages? I can see that there would be no negative output voltage in ...
0
votes
1answer
434 views

24vac to 24vdc with bridge rectifier BUT

I am needing to power a 24vdc gate motor, it is rated for 24vdc 1A on battery power and 24vdc 4.5A on mains power, i have a laptop charger(AC Adapter) that does 220vac to 24vac and 4.5A but i need the ...
1
vote
1answer
128 views

Why Current draw in DC variable power supply is not sizable?

I have done a DC variable power supply, and checked it using multimeter the output voltage ranges from 1.3v to 19v, but the problem is when I added a DC load(small DC motor) it was not working, why? ...
-1
votes
1answer
124 views

High Output Current with Short Circuit Protection KA7824 Regulator [closed]

I have a circuit board with the following set up with the voltage regulator KA7824 This picture is taken from the datasheet of the voltage regulator as one of its uses. my circuit board converts AC ...
0
votes
1answer
56 views

Converting DC Motor's Tachometer Output to DC Using Bridge Rectifier

I have a DC motor that its specification states that "Electric DC motor manufactured by Buehler. Sinusoidal Encoder Output: 11.5 VAC - 870 Hz @ 12 VDC input. No load speed: 6800 RPM. Runs in either ...
2
votes
0answers
510 views

What could have caused bridge rectifiers to fail?

Ok, so I have a pioneer surround sound that I was trying to fix because of one speaker had very low volume. What I changed was a resistor, its the exact same color stripes, but the size is a bit ...
0
votes
1answer
62 views

3 Phase calculations

I have 3-phase utility mains power supply whose phase voltage is 220 V, 50 Hz. I keep getting confused about various calculations of the 3-phase mains as follows: Formula for the line voltage. ...
4
votes
2answers
955 views

How do you calculate RC snubber values for a discrete bridge rectifier

I'm working on a small linear power supply for an audio amplifier (home/hobby use) and I want to add an RC snubber on the rectifier diodes. I know this might be overkill, but I'm looking at it as an ...