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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105 views

Reduce voltage from transformer [closed]

I am trying to build a variable power supply using a transformer with a 12V 0 12V - 5 ampere output. I am using a BR1010 rectifier. I have connected the 2 - 12V wires from the transformer to the AC ...
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274 views

Use of different diodes in a bridge rectifier

I'm repairing the circuit for a motion-activated LED light. The PCB uses a capacitive dropper circuit as the power supply. Photos of the PCB and the corresponding reverse-engineered power schematic ...
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Calculation vs. simulation of DC output voltage from full wave bridge rectifier, through voltage divider, with no transformer

I'm designing a circuit using an Arduino to measure / monitor US line voltage; single phase 120VAC (170v peak) @ 60Hz. The circuit itself is a simple full wave bridge rectifier using 1N4007s. The ...
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39 views

How do I caluclate which capacitor to use as a filter after the brdige rectifier using the 18Vpk A.C. 50 Hz as a source?

Like how would I go about on it? From calcualating the ripple voltage, to knowing which value of farads to use.
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51 views

Peak Inverse Voltage of full wave rectifier in case of different diodes

Does the peak inverse voltage remain the same for all the diodes in a full wave rectifier, when we are using both germanium and silicon diodes in the rectifier circuit?
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42 views

How to test a half wave bridge with a multimeter

I found a box of LAS-8500P half wave bridge interface drivers in my attic. How can I test them with a multimeter to see if they are any good? Data sheet https://datasheetspdf.com/pdf-file/531203/...
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42 views

Simple power supply troubleshoot

I have a very simple power supply circuit, consisting of a 220V:22V transformer, full bridge rectifier (1n4007 diodes) and a smoothing capacitor (electrolytic, 4700uF). The output voltage should sit ...
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54 views

Thyristor Voltage Waveform in a Full Wave Bridge Controlled Rectifier at Discontinuous Mode

I'm having some trouble to understand the thyristor voltage waveform for the full wave bridge controlled rectifier. I plotted the Voltage at the secondary, the current at the load, the voltage at the ...
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105 views

Measuring technique for bridge rectifier driven by function generator

I am confused about a problem I am having measuring the output of a full wave diode bridge rectifier driven by a function generator. I am only getting half of the output as if it where a half wave ...
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57 views

Smooth signal using a capacitor [closed]

This is a full wave bridge rectifier I have read that if you put a capacitor parallel to the load resistor instead of DC pulsed signal we get a more smooth DC signal. However I am unable to ...
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57 views

Doubt about zero-cross circuit

I have simulated the following circuit on MultiSim, and it seems to work well doing its job. The first element is a full wave bridge rectifier. At its output is connected the input of the zero-cross ...
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90 views

Full bridge rectifier forward voltage definition

I am looking for an efficient way to rectify a 3–20V AC voltage (at ≤2A) and am therefore looking at integrated full bridge rectifiers and discrete Schkottky diodes. In a datasheet of a full bridge ...
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329 views

What cause Diode bridge to short circuit?

My circuit got 220V to 36V Transformer (Approximately 50VA) KBPC2510 bridge rectifier (1kV, 25A) relay to coltrol motor of/off 36V DC motor (100W, 4A), just drive rotary knife to cut fabric. At ...
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428 views

Full Bridge Rectifier Oscilloscope Reading

I am trying to read the output wave of a full bridge rectifier circuit on my oscilloscope, but the waveform looks really funky. I've set it up as shown in the spice simulation where resistor R1 ...
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43 views

Problems related to Zener Diodes to determine the ratio of transformer

I am having a problem which is related to a circuit as shown below: simulate this circuit – Schematic created using CircuitLab I will give you more information about this circuit. V1 in this ...
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64 views

How to confirm if diode bridge is faulty

How could I confirm if the faulty component in my circuit is the diode bridge (marked as B) in the attached image? If I set my polimeter to AC and measure LN in point A I get the correct 220v, but ...
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Separate FB rectifiers for each phase, outputs in series…bad idea?

Newbie here. So I have made myself a mini hobby 3 phase wind turbine that rarely outputs enough usable voltage from a 3- phase rectifier. Didn't find any adequate info on it online but made sense in ...
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Formula question about the Bridge and full wave rectifier,where are these number from?

i learn something formula of Bridge and full wave rectifier from my book DC voltage \$V_{DC}=V_m-\frac{V_{r_{(pp)}}}{2}\$,\$V_m\$ is the amplitude of sine wave voltage, \$V_{r_{(pp)}}\$ is the peak ...
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57 views

Power recirculation rig using rectifiers and BLDC motors

I am currently trying to set up a rig to test my 3d printed gears under different torques and motor speeds. The power input side is going to be the BLDC motor, driven by a hobby ESC (BLHeli_32), ...
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50 views

How to wire a two pin bridge rectifier

I have this bridge rectifier (Image below). https://www.deantechnology.com/products/hvhp10k How do I wire this? I know how to wire four pin bridge rectifiers but how do I wire this two pin rectifier?
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78 views

PI Filter After Bridge Rectifier - Inductor at Positive Line or Negative Line

I was reading the InnoSwitch-CE Family Datasheet for a design I'm currently working on. At the Circuit Board Layout Recommendations section, it's stated that the inductor should be placed between the ...
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1answer
118 views

24 AC to 32 DC. How?

I encountered the following problem: inside an equipment, an added PCB needs 32 V DC and in that enclosure, only 24 V AC is accessible. In order to get 32 V DC from that 24 V AC, someone put a bride ...
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222 views

How to get rid of floating voltage on Bridge rectifier

I'm trying to implement a rectifier and AC voltage sensor. The rectifier part works just fine. I'm able to power my device without any issues. Please look at C2 in the screenshot (Circuit schematic)....
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1answer
82 views

Tap into stepper motor signal

I was wondering if it is possible to tap into the signal either on the low power side (between motion controller and the stepper motor driver) or on the high power side (between the stepper motor ...
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104 views

What happens if D2 and D4 is shorted in a full wave bridge rectifier?

Hello, What happens to the circuit if D2 and D4 diode is shorted?
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72 views

How do I attach leads to a SOT-227B/miniBLOC package?

I am reviewing options for full-wave rectifiers for a several thousand watt project, and many of the options are in the SOT-227B/miniBLOC package. I am not familiar with this package, and when I was ...
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313 views

Making a bench power supply to test car & bike starter motors at no load?

Does anyone have any information on how much current does a car starter motor draw at no load? It's from a BMW E46 .The motor specs: Power max: 1.4kW Voltage: 12VDC Armature resistance: 0.61 ohm ...
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1answer
47 views

Getting Waveforms with Negative Voltage Component on a Bridge Rectifier

I am trying to simulate a Bridge Rectifier with 1N4005 diodes and an AC power source. The circuit looks like this: link here I am getting a waveform that drops below zero V, is this behavior ...
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3answers
70 views

How to determine the resistor value when I want to use this op amp circuit?

I want to know how to determine the resistor value when I am using this op-amp circuit. Any theory I need to follow? How to determine the gain with diodes? If possible, please explain with an example....
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94 views

Current Sensing Switch

I have built the circuit depicted below in order to start a 10A 220V dust collector(Load 2) when I run my 20A 220V table saw (Load 1). So far, I have not been able to activate the relay to power load ...
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3answers
569 views

Wiring a transformer with two primary windings

I'm building a circuit that involves the use of multiple transformers. I've mainly used transformers that had one primary and one or two secondary windings. However, this time, the transformer I'm ...
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1answer
69 views

Rectifier Design with Regulators Surge/In-Rush Currents

I'm attempting to design my own rectifier circuit to output a positive and negative voltage as shown in the circuit below. I'm running into some concerns regarding the smoothing capacitor choice and ...
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1answer
50 views

Residual AC voltage after diode bridge in dual power supply

I'm building a +/-24V supply for my first hifi project but I'm having an issue. I use a dual output 28V toroid, doubled P600M diodes for rectifying (to distibute the load and lower heating), with two ...
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319 views

What happens when you put two rectifiers in series to get DC from a stepper motor?

For a project a stepper motor is used as a generator because of the decent amount of power at low RPM. Now have found that one rectifier is sufficient when placing the coils in series. First however, ...
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1answer
153 views

How does conduction angle through a bridge rectifier affects generator performance (vibrations, etc.)?

Consider this scenario: A 3-phase permanent-magnet generator is being driven by a strong force and at varying speeds e.g. 1000-6000 RPM Its output is rectified via a 3-phase bridge rectifier The ...
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58 views

How do you design a bridge rectifier circuit?

I am trying to design a bridge rectifier circuit (without capacitor). When I try measuring and graphing the output and input, the input looks fine but the output is just a straight line. Did I design ...
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89 views

How do we know \$R_x=\frac{R_2R_3}{R_1}\$,and \$L_x=C_1R_2R_3\$ in the maxwell bridge

There is a maxwell bridge below The book said when $$(R_1//\frac{1}{jwC_1})(R_x+jwL_x)=R_2R_3$$ We can find that \$R_x=\frac{R_2R_3}{R_1}\$, and \$L_x=C_1R_2R_3\$ I want to ask how can we ...
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383 views

Why is there a difference between voltage shown by the multimeter and the rms voltage in the Multisim probe?

I've created a full wave rectifier circuit and there is no DC offset in the AC power source. One thing that perplexes me is that the voltage shown by the Multimeter is different form the rms voltage ...
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1answer
57 views

DC High Current Power Supply for Electrochemical Plant

I’m looking to build my own high current full bridge rectifier to power electrowinning cells. I need a DC supply that is adjustable 0 - 5 V, and could supply up to ~50 kA (50 kiloamps.) Obviously ...
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1answer
81 views

Smoothing rectified voltage

I am developing a circuit to convert 230VAC to 12VDC. I ran into the problem that my smoothing capacitor for the full wave rectifier is pretty huge. The load is estimated to be around 500mA and ...
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14 views

Calculate 3 phases VA apparent power from DC load after bridge rectifier

In a tomatoes greehouse I try to power some high bay led light with 3 phases (400V between each phase: 230VAC*SQRT(3)). After 3 phases rectifier bridge i use the average DC line about 540V. All the ...
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1answer
40 views

Bridge rectifier ripple under load

Why when I put even a light load on the bridge rectifier output shows 100Hz ripple? simulate this circuit – Schematic created using CircuitLab SR240 datasheet
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648 views

Why is an input side transformer necessary with a bridge rectifier?

I am not getting the statement "The load cannot be grounded without an input side transformer." Described as a disadvantage of bridge rectifiers in book on power electronics by M. H Rashid. Why can'...
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42 views

Full wave bridge circuit voltage calculator

A transformer with a 12.6 Vrms secondary supplies the AC voltage for a full-wave bridge circuit. The output goes to a 1000 microfarad capacitor in parallel with a 4.7 kilo ohm resistive load. Compute ...
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122 views

How to wire a single wire alternator to a bridge rectifier?

I'm trying to make a 25cc weed eater generator (for fun) and I'm thinking of using an alternator to take the rotary output from the engine and turn it into electricity. I need a way to take the 12-14V ...
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279 views

Connecting DC Common Node (Ground) to Three Phase Neutral

I know I shouldn't. But I just wanted to ask due to a specific requirement. I also searched the forum but couldn't find any similar question. Please give me a link if there's any. I'm asked to modify ...
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90 views

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 ...
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58 views

Removing the load of an AC signal to a DC signal

simulate this circuit – Schematic created using CircuitLab I built this circuit to visualize music with LED's using a full-bridge rectifier I got from a vacuum(meant for 120VAC to 120VDC, with ...
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144 views

How many inrush current limiting thermistor do I need and where should I place them?

In most designs they place a single NTC thermistor in series before the bridge rectifier and in some two or four: simulate this circuit – Schematic created using CircuitLab Isn't a single ...
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1answer
2k views

Full wave rectifier with inductor filter

The capacitor-only bridge rectifier can't remove the ripple under heavy load and for a linear lab power supply I need to have an output without any ripple under load. after simulating the bridge ...

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