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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41 views

Is the voltage on the resistor always low when the zener diode is not in reverse operating region?

I´ve read that the zener diodes are used for voltage regulation, and the resistor in this circuit limits the current through the diode and drops the excess voltage when the diode is conducting. Does ...
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76 views

Why is there a LC filter in front of the DC/DC converter?

I have to study this circuit. I understand that Graetz's bridge is there to convert the current to positive, but why is there a LC filter at the entrance of the converter?
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Behavioural Voltage

If I directly connect it to the power stages in a midstage model from an output of a rectifier, the rectification seems off. If I add it to the power stage using a Behavioural Voltage, it seems smooth ...
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89 views

Full wave bridge rectifier design

I am asked to design a full bridge rectifier with the following parameters: Vin = 230 VAC Vout = 18 VDC Iout = 1 A ΔVout = 500 mV Efficiency at least 70% The frequency of the voltage in the primary ...
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Do same current formulas apply if a capacitor is added, and vice versa for inductor

Ok so the title question is a bit misleading but its hard to explain in that small space. My questions concern themselves with the analyzing of the circuit observed below, however fundamentally ...
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42 views

Two different voltages from a single transformer without a common ground

I have a transformer with four taps; 8, 16 and 24 V and I want to have a switchable and an stable 24 V from this transformer. I've asked this question before and you told me that I can't have a common ...
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32 views

Advantages and disadvantages of using igbt module with integrated rectifier bridge

What would be the main problems of using an igbt module with a rectifier bridge in an ac-ac converter project? Noise? Temperature? Does separating the rectifier bridge from the full bridge really ...
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43 views

Switching from full to half wave rectification

The Context: Multiple manufacturers of electro-magnetic brakes offer rectifier modules to switch their DC brakes with an AC feed. This can often be tied to the same phases turning the motor, so that ...
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Rectifier design calculation

I am working on a rectifier design. For that I am analyzing the formula for capacitor selection. I came across a video reference. Io: average output current Vo: Average output voltage Vc: capacitor ...
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139 views

Difference between Peak rectifier vs Full wave rectifier

I asked a question the NXP forums here about the TEA2208T (datasheet) which is an active bridge rectifier. I was told this part is a full wave rectifier and not a peak rectifier and therefore a ...
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125 views

Motor control diagram voltage divider

The motor control for a small winch I have has the following diagram: Note: (4, blue) and (5, gray) are connected together. I do not understand what the voltage divider connected to the (4) connector ...
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51 views

Bridge Rectifier's Output Became Near-Zero Value After The Implementation of a Voltage Divider

Weird. I have both simulated (shown in picture) and practical circuit built. Simulation works as expected. On the practical circuit, the output of the full-wave bridge rectifier gives the result ...
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40 views

Half Wave Rectifier - Voltage Signal Across Diode vs Voltage Signal Output of Diode

I am learning how to work rectifiers and I build a half-wave rectifier to test signal in simulation. When I add probe output of diode and voltmeter across the diode, the signals are different. It ...
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88 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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175 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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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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39 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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36 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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40 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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32 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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46 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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49 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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51 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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56 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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113 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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90 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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34 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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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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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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47 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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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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106 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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130 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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52 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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73 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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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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180 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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33 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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62 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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67 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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194 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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58 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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42 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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118 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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78 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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56 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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85 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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