Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

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.

0
votes
1answer
25 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
0answers
40 views

Change 1N4007 diode Bridge rectifier to single component or IC

I have seen people have been using 1N4007 diodes bridge rectifier to convert AC power supply to DC. Is there any IC or Component to convert this. If yes, then any suggestions about component or data ...
2
votes
1answer
79 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
56 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
146 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 ...
0
votes
0answers
37 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
115 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
2answers
51 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 ...
1
vote
1answer
109 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
40 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
27 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 ...
0
votes
1answer
46 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. ...
2
votes
0answers
251 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
85 views

Smoothing cap vs filter for full wave bridge rectifier circuit

I am designing a circuit which requires high-voltage DC. My plan is to step-up my mains (120VAC) with a transformer and then pass that through a FWB. After the FWB, I want to smooth the signal into a ...
0
votes
3answers
132 views

Is a bigger resistor different from a smaller resistor with same color stripes?

I changed a resistor with same color stripes Yellow, Purple, Gold, Gold on a Pioneer surround system but the only difference was that the I put was a bit bigger. The problem is the system went into ...
4
votes
2answers
292 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 ...
1
vote
1answer
88 views

Trying to understand floating voltage

I'm trying to understand the concept of a floated voltage, and why it is needed in some cases. For my own case, I am using a variac connected to a rectifier to provide a DC voltage for a circuit, (...
0
votes
2answers
112 views

How to solve a a full wave rectifier with two diodes and a ground in the middle?

This is the problem I am trying to follow along with the solution but I don't understand what is happening, how do I handle the random ground in the middle?? is the node between d1 and d2 40Vpeek and ...
0
votes
2answers
173 views

What is the purpose of grounding rectifiers?

In the centre tapped rectifier: It seems as if the highlighted ground line would provide a short circuit for any current developed between the top/bottom wires and the centre tap, eliminating any ...
0
votes
2answers
77 views

Output voltage of a rectifier

Is the output DC voltage of any rectifier (Halfwave, Fullwave or bridge) simply equal to \$\sqrt{2}\$ times Phase to neutral AC input voltage? Or does every rectifier circuit have its own formula to ...
0
votes
1answer
70 views

Why is waveform of the voltage across the DC-link capacitor alternating?

So I am connecting a full-wave rectifier to a half-bridge inverter as shown in the circuit below. I added a smoothing capacitor of 0.47 Farad to get a smooth DC output voltage (see the first graph), ...
1
vote
2answers
94 views

Diode Array for Full-Wave Rectifier for PoE

I was looking for SCHOTTKY diode for designing Full-Wave Rectifier for PoE. I was searching for the diode but came across the ...
5
votes
1answer
222 views

How is the voltage regulator functioning in this vintage charging circuit?

Attached is a simplified diagram of my motorcycle's charging circuit. It has a standard 3-phase bridge rectifier circuit--simple enough. I'm confused about two things: (1) How is the voltage ...
0
votes
2answers
67 views

Bridge rectifier filter capacitor remove

My question is very simple. What components should be removed from the following circuit diagram for this circuit to work only on DC voltage? I'm sure that the bridge rectifier should be removed ...
0
votes
2answers
56 views

how can accsess gnd in full wave rectifier? [closed]

in full wave rectifier without transformer how can access to gnd for regulator or gnd of microcontroller? (assume we dont have trouble with amplitude of voltage) I think in full wave rectifier in ...
-2
votes
3answers
243 views

What is generic formula for min and max levels of rectified AC voltage?

For example, if i have 1 phase AC voltage with 1 volt peak level and rectify it., i would get some pulsating voltage V = abs(sin(t+0*pi)). Its minimum is 0 volts ...
4
votes
6answers
1k 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
64 views

Building a High Voltage Rectifier with a continuous negative output

simulate this circuit – Schematic created using CircuitLab In the past, I have worked with high voltage projects, but seldom with HV rectifiers. Thus, I was curious how I could build a ...
1
vote
2answers
328 views

Full wave rectifier math analysis

I read some about a full wave rectifier on this website and when it got to the section of smoothing capacitor, and showed this graph and schematics: It was also said that: Here the 5uF capacitor ...
0
votes
1answer
60 views

Examine rectified voltage before and after

I built a simple bridge rectifier. simulate this circuit – Schematic created using CircuitLab I connected the output of the function generator with CH1 of my oscilloscope and with the input ...
0
votes
0answers
63 views

Output impedance function generator, limiting the current

I've the following schematic: simulate this circuit – Schematic created using CircuitLab Now the R of 50 ohm does limit the current that be supplied to the load. Is there a way to be ...
0
votes
1answer
46 views

Is it possible to charge/discharge this cap fast enough?

What I have, is a common 12-pulse rectifier with its bridges in series and I included a snubber between DC-link and rectifier output. Is important to note that all inductances before the rectifier are ...
0
votes
2answers
160 views

Converting 8-24 V AC into 3.3v DC

I have a circuit running an ESP-12 at 3.3v DC that I would like to power with a doorbell transformer that will deliver between 8 and 24v AC. I was wondering what would be the best way to do that. I'm ...
0
votes
1answer
303 views

RC snubber on bridge rectifier (capacitor rating)

I am using a bridge rectifier on the mains and across each diode I have placed a RC snubber for EMI mitigation. (C is rated at 1Kv) My question is...on the C (from the RC snubber) should I use Y or X ...
0
votes
1answer
36 views

What would be involved in rectifying electricity from a faulty car alternator?

Disclaimer: Newbe As I understand things: a car "alternator" generates a/c current the alternator contains diodes that rectify the current to d/c current if one or more diodes fail then the ...
0
votes
1answer
107 views

IGBT Rectifier Gate Voltage

I have a 3-phase bridge rectifier which uses IGBT's shown in the image below. The circuit works perfectly and the voltage on the output (unfiltered) is exactly as expected. However the gates are ...
3
votes
3answers
477 views

Why Does DC Load Draw Twice As Much AC Current Through Transformer?

I have designed the following circuit, comprised of 4 loads, 1 of 4.2ohms and 3 of 21ohms, drawing a total of 2.4Arms (1.5A, 300mA, 300mA and 300mA respectively) of AC current through the secondary of ...
0
votes
2answers
87 views

Why should I specify a 'pulse width' when firing a thyristor rectifier/inverter?

If I'm correct, the controller will send a gate signal to this bridge (6-pulse or 12-pulse) and even if it sends them with 1 degree of width, the thyristors must close until the current through it ...
1
vote
1answer
198 views

Measuring an AC-voltage at the ouput of a full bridge rectifier

I've a full bridge rectifier and I put the following function into it: $$5\sin(100\pi t)\tag1$$ So, at the output I get: $$\left|(5-2V_d)\sin(100\pi t)\right|\tag2$$ Where \$V_d\$ is the voltage ...
-1
votes
1answer
52 views

Need help with high voltage rectification

I have a necessity to implement a bridge rectifier, the bridge will be fed from residential power, stepped up with a transformer at 409Vac rms @ 8amps. The power will be used continually and not in a ...
3
votes
2answers
533 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 ...
0
votes
2answers
165 views

Is there any relation between the input and output of bridge rectifier that can explain this sentence?

Energy can be extracted independently of the excitation type and frequency, as long as \$V_p\$ exceeds the output buffer voltage \$V_{buf}\$,I am not understand what does this sentence mean,it seems ...
0
votes
2answers
161 views

Smoothing capacitor for scooter regulator - High constant current drawn

I've researched the forum before posting, but it seems my question is a bit specific and not answered before. Please excuse me if I'm wrong. So what we have here is a chinese scooter alternator, ...
0
votes
1answer
212 views

LTSpice arbitrary voltage block (bv) simulating full wave bridge rectifier

I'm creating a LTSpice simulation. I need a voltage source that looks like the output of a full wave bridge rectifier. The simulation includes a sine voltage source (voltage block) line to generate ...
0
votes
0answers
42 views

High current full wave rectifier for feeding a solar inverter

I am trying to power a solar inverter using a single phase ac 15A generator. Due to the nature of solar inverter, they require a DC input that is basically ripple free (like a solar panel). I was ...
0
votes
1answer
76 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 ...
1
vote
1answer
55 views

Does using electronics with poor power factor affect the pulse power capability of a generator rated for a certain KVA?

The situation is such: There is a multi-pole, three-phase, permanent magnet generator (rated for 100 KVA, let's say) that feeds into a simple diode rectifier with a capacitive/DC Voltage load (...
2
votes
2answers
159 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
1answer
1k views

3-phase 200Vac rectifier output voltage

I was studying about 3-phase power supplies. After going through several searches, i found this formula of three phase bridge rectifier's output voltage: Vdc = ( 3 x sqrt(2)/pi ) x Vrms Vdc = 1.35 x ...
0
votes
1answer
116 views

Bridge rectifier simulation problem

I use virtuoso cadence to make two bridge rectifier,one of them use NMOS to replace the diode,and the other use DION_MM directly,like the picture shown But their simulation are wrong,like the picture ...