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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2answers
90 views

Strange failure on bridge rectifier

I've build this circuit (that will be part of a more complex circuit): All works as expected and on the zener I have exactly 15 V rectified. Later, one day after, I've discovered that even with the ...
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58 views

Battery charger DIY

Can I use 220-12 V, 1.5 A stepdown transformer along with 12 V 2 A (KBP200) bridge rectifier to build a charger for 12 V, 7.5 Ah battery or should I use transformer with higher output, maybe 15 V?
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Is it possible to reverse the polarity of DC using diodes?

From my humble understanding of a bridge rectifier, it "flips over" the negative cycles of AC, turning it into DC. Is it possible to modify this circuit so it can be used to reverse the ...
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59 views

Live only circuit with 3 loads

Please advice how to design one transformer using full-wave bridge rectifier to control separately for 3 loads. This design is Live only circuit,no ground and neutral. Do i need more of bridge ...
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How do I calculate the real power curve of a PWM resistive load supplied by rectified AC?

When AC is put through a capacitor filtered full wave rectifier, the output voltage is ~1.414 x RMS input voltage for zero load, and nominally equivalent to the RMS voltage when connected to a pure ...
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37 views

ADS Simulation of Half-Wave Rectifier

I’m trying to simulate a half wave rectifier for a -84dBm 2.4GHz AC signal. The rectifier doesn’t seem to be giving me the correct waveform - the negative half cycle isn’t blocked? Also sort of ...
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40 views

Which is better for full bridge rectifier circuit? MLCC or Electrolytic? [duplicate]

If I place 100uF multilayer ceramic capacitors at the output of a full-bridge rectifier will there be any problem? Or I need to place electrolytic capacitors? What difference do they make (except size)...
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Max voltage per thyristor in 3phase thyristor full bridge rectifier when Iout is DC

I was wondering: Suppose we have a circuit as the title states where $$\omega L >>R, (L\rightarrow \infty) $$ ). So the output current $$I_{out}$$,is considered a DC one. My book says that the ...
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Universal series motor control using relays

I have a 220AC universal series wound motor I am trying to connect to a RF Remote Switch using relays and full bridge rectifiers. I have come up with the following schematic: The RF Remote Switch ...
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783 views

Why does diode keep conducting even after voltage across it is negative

consider single phase two pulse semiconverter asymmetric configuration. simulate this circuit – Schematic created using CircuitLab Note the high value of inductance L1. Let ...
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For a full wave bridge rectifier, why does the oscilloscope does not show the rectified voltage in negative cycle?

I was trying to do a simple full bridge rectification. There is a strange problem. The oscilloscope does not show the rectified waveform in the negative cycle. The input is applied from a Keysight ...
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67 views

Are vias underneath a SMD component without a thermal pad useful for cooling?

I want to cool this bridge rectifier from Diotec in my circuit to minimize radiated heat by placing a small copper area directly underneath it and connect it to a larger copper area on the opposite ...
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32 views

Common Ground across SCR and Diode Bridge

I am trying to use a common ground to enable a regulated output across the circuit, however as you can see the SCRs and Bridge use the common earth to relay the positive channel in the bus.. Is this ...
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101 views

Sharing ground between two fully bridge rectified AC signals

I am designing a device which has two AC input signals. The Input signals are as follows. A - AC Signal A B - AC Signal B Com - Shared Neutral for above inputs ...
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3answers
92 views

What is the reason the output signal I obtained from full-wave bridge rectifier has changing amplitude?

I observed the output signal of full-wave bridge rectifier sending sine wave and square wave for an experiment. In both of the output signals it is clear that each cycle shows one of the two different ...
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How to select the best diode for a full-wave diode rectifier which gives the most efficiency and minimal power loss

I want to make a bridge rectifier that can convert 230 VRMS 50Hz AC into fully rectified DC, but I don't know what particular diode to use for my circuit. In particular, I want to use Schottky diodes ...
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3ph diode-rectifier with RL load : non - active power

I am studying this circuit. In my book there is an open question about reactive power Q in input in cases 1) L=0 and 2) L=oo Well I do know that Q(Var) occurs when there is phase difference between ...
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54 views

Weird output voltage from smps

I just completed a half bridge smps and had a test run. The series bulb on input just blink for a second at first and then shut down at it should. But the output voltage is quite weird because my ...
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42 views

Frequencies of current harmonics 1 phase diode bridge rectifier

I was wondering what would be the frequency of the current harmonics at the input of a 1phase diode bridge rectifier. My believe is that it should be 60Hz for Is1, 180Hz for Is3, essentially every ...
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184 views

Regulated multi-voltage PSU given a center-tapped transformer and a single regulator/zener

My first post here, sorry in advance if this question has already been covered. Being a computer scientist, my knowledge about electronics is limited, never had a formal education, a couple of courses ...
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45 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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101 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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113 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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45 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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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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52 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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212 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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142 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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58 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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41 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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99 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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233 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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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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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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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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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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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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56 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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54 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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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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226 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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303 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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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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