These are part of AC to DC conversion. A half-wave rectifier keeps only the positive part of the signal. A full-wave rectifier also keeps the negative part, but flips it to make it positive too.

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Full-bridge rectifier not working as expected

Im trying to create a full bridge rectifier from a step-down voltage source. The circuit is as follows: simulate this circuit – Schematic created using CircuitLab The problem is that I'm ...
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3answers
97 views

Quick and dirty LED power from AC

I have some extra 1n4007 diodes, and was wondering whether, instead of using a power supply to drop the voltage, could I could power LEDs by just making a full wave rectifier, Using a capacitor to ...
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1answer
50 views

Precision rectifier using a low-power single supply rail to rail op amp

Rectifying a very low voltage signal turns out to be very hard. (for me) I've tried this a few different ways without good results. I'm looking for a reasonable simple solution that performs well ...
2
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1answer
57 views

Light Organ — Need help with LED grid

I'm building a light organ for a school project. I've got a crossover to separate the frequencies, now I need to make an LED grid. The input will be an constantly changing analog signal (whose ...
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2answers
33 views

Inverted signal in biopotential circuit

Im building an sEMG circuit and am a bit confused on how to change the signal back to non inverted before the output.The signal goes -> amplifier (x16)-> high pass filter -> variable amplifier ...
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1answer
179 views

Does a bridge rectifier care that much for AC frequency?

As I understand it, a bridge rectifier is a set of diodes that play a trick of logic that keeps the polarity positive. So, within the context of a household DC transformer does it matter what the ...
2
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2answers
55 views

Peak output current of a Full-Wave Bridge Peak Rectifier

I am attempting to design the first section of my power supply. In this case, I am going through my calculations for the Rectifier section. I am simulating my circuit with PSpice and while most of my ...
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0answers
55 views

Why does this voltage error amplifier output always reach its saturation voltage?

Why does the voltage output of both amplifier (Vm1 and Vm2 as shown in picture) always reach its saturation voltage?
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1answer
52 views

Middle-Tapped Transformer Full-Wave Rectifier Vs. Full-Wave Bridge Rectifier

In terms of output voltage, which one of these would be best? Coming into this, I would have to say the center-tapped transformer full-wave rectifier would allow the most accurate output voltage ...
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3answers
145 views

Precision Rectifier Help

I'm building a "precision rectifier" using an op amp and some diodes. The schematic is attached. On a breadboard, this circuit behaves as expected, producing a clean, rectified sine wave. When I ...
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2answers
46 views

Rms value of rectified output from a half wave rectifier

The rms value of an alternating quantity which is the input to a half wave rectifier is Imax divided by square root of two. Then the rms value of output should be IMAX by 2*sqrt two. But it Isht ...
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2answers
102 views

How does this power supply (resistor/capacitor) divider filter work? [duplicate]

I've been looking at various valve guitar amplifier circuits and in specific, the power supply section. I've been seeing a particular circuit that's repeating itself here and there in the power ...
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2answers
71 views

Potentiometer Ripple under load

I have the following circuit with a 10k 0.5w trim potentiometer. simulate this circuit – Schematic created using CircuitLab The voltage after the bridge rectifier is maintained at ~8.6 ...
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0answers
31 views

Amplifying an antenna signal before rectifying it

I do not have any germanium diodes for a radio project I am working on. Due to this, I must amplify the antenna signal before I rectify the signal, as I will be using a silicon diode. How do you ...
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1answer
53 views

Measure both sides of an AC and DC circuit

So I have recently begun messing with diodes and there use in converting AC to DC. What I am curious in trying to do is to hook up my dual channel oscilloscope on bother DC and AC side to view the ...
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3answers
98 views

AC to DC Bridge Rectifier DC Amperage Drop

Assuming I used a 120 VAC -> 12 Vac 2 VA transformer and pass the current through a full wave rectifier circuit what is the maximum amperage I could draw on the DC side.
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1answer
57 views

Diode Rectifiers Driving Highly Inductive Loads Producing Input Square Wave?

According to a textbook that I have, when driving an inductive load with a diode rectifier, the input current becomes distorted. The illustration of the circuit below has the input as an AC source, ...
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2answers
102 views

Three-phase rectifier circuit simulation

Is this the correct way to simulate a three-phase full bridge (6 pulses) rectifier? I ask because I have tried this first without the two capacitors, just one, and the capacitor seems to have ...
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0answers
73 views

Difficulties with Representation of Half Wave and Full Wave Rectifiers on PartSim

After tweaking the domains, the run-time duration of the simulation and the location of the probe I discovered that there was no mistake. Below I've attached a picture of the graph blown-up. ...
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1answer
64 views

Unexpected rectifier waveform

I've built a simple half-wave rectifier using the following components. \$10\$k\$\Omega\$ resistor 1N914 diode 1 kHz sinusoidal source I'm measuring the voltage across the resistor with an ...
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2answers
65 views

What are the ratings of vintage Selenium Rectifier B20/16-2,4?

Sort-of a follow-up to How to ground a vintage device that was powered without a ground? in that the device is the same. I finally took the leap and opened up the old charger (depicted in the linked ...
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2answers
94 views

Using normal diodes to rectify high frequency waveforms

Recently I was try to rectify the output of an “electronic transformer” using an ordinary rectifier diode 1N4007. The output of this device is bursts of frequency around 50kHz, with an envelope of ...
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5answers
233 views

Transformers vs. voltage regulators

I'll start by saying that I'm self-taught in electronics, and tend to ask a lot of questions because I don't know NOT to ask them. This is one of those questions. Consider: I have 120VAC and need ...
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2answers
187 views

How to construct this simple circuit properly?

I am a total newbie in electronics and circuit design. I am working on a project that involves a AC motor and four 1W LEDs. I found a motor that works for me and it comes with a AC/AC power adaptor ...
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3answers
77 views

Reference voltage source using classic rectifier diodes

I want to make some simple voltage stabilizer using operational amp, but need source of reference voltage. I know that I can buy this component, but shop is far away from me and paying 8e for courier ...
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3answers
92 views

How do I size fuses to handle sudden changes in AC line voltage into a capacitive load?

Suppose I have a rectifier on the AC line, followed by some caps and a load. simulate this circuit – Schematic created using CircuitLab If the AC line is suddenly increased, there's a ...
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1answer
97 views

Rectifier component for PCB

I'm looking to change my breadboard design of an amplifier into a PCB. This is the first PCB I've designed and I'm not sure what sort of components to get. My original full wave rectifier is made ...
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1answer
78 views

Different voltage readings when using different ranges on a multimeter

I'm using a digital multimeter to check the voltage on my motorcycle battery - I'm attempting to confirm the proper installation of a new alternator in the charging system. The voltmeter has 3 ranges ...
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2answers
183 views

Why my full-wave bridge type diode rectifier circuit begins an analysis from 8. second on Matlab Simulink?

Hi, I am working on Matlab Simulink's work page to get full-wave and half-wave bridge-type-diode rectifiers as could be seen in the picture. But, according to my Scope2 screen when I double clicked ...
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2answers
120 views

Identify Logos on Bridge Rectifier

This is one of two bridge rectifiers recovered from a failed LED lamp. I've seen the 'backwards R' before but don't know what it means/identifies. The other logo on the left is one I've never seen ...
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1answer
74 views

Help Understanding an Autonomous rectifier

Could anyone tell me how does the circuit below work ? It's a autonomous rectifier. Taking the signal between the two output resistors gives a full-wave rectification, and taking it at the output of ...
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0answers
40 views

Rotation-switched active rectifier idea

Most of you will know how three-phase rectification works and how cool it is. My idea is: replacing the diodes in a three-phase full-wave diode bridge with MOSFETs, as in active rectification, and ...
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2answers
569 views

How to drive a LED strip from AC power supply?

I have a LED strip (5050) and a sine-wave AC power supply of a sufficient wattage and the voltage regulated in a sufficient scale. What would be a good design of driving the LED strip from this ...
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1answer
60 views

Transforming 240 VAC to 5V/gnd

My 240 VAC relay can be either on or off. I'd like to transform that to 1/0 signal for an input pin on my Arduino. I may be able to build something with a rectifier, a step-down and a couple of ...
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3answers
174 views

Current transformer to ADC

I am planning to buy these current transformers which I am wanting to use to measure electricity consumption of a device where household power is 220V, 50Hz. I want to use these in combination with a ...
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2answers
192 views

Full-wave rectified sine wave representation?

Let us suppose I have an input voltage \$V=V_0 \sin(\omega t)\$ connected to a full-wave rectifier bridge which changes the voltage to \$V=V_0|\sin(\omega t)|\$. Now, if I want to work out the voltage ...
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1answer
104 views

Obtaining three different DC voltages from a three-phase AC supply

I have three identical sinusoidal voltages, R, S and T, whose phases are spaced by 120o difference. I want to obtain three different DC (unfiltered) voltages from these tree AC signals for some ...
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1answer
34 views

Replace Current controlled Voltage Source Converter with Rectifier Diodes in ELC?

In this paper an Electronic Load Controller (ELC) for two (2) parallel generators is designed. I wish to omit the second generator and hope for simplification. Now two questions arose: (while I ...
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3answers
116 views

What is the electrical connection of heatsink plate of PB case bridge rectifier packages?

I'm going to use two PB-case bridge rectifiers of a certain product in my circuit. I need to know the electrical connection of its heat-sink plate (i.e.; to what pin it is connected to, or if it is ...
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1answer
81 views

Should I use Mathematica to understand circuit behavior? [closed]

I've just started learning about circuits from the "Foundations of Analog and Digital Electronic Circuits" book. KCL, KVL, element laws and linear circuits were easy to grasp but then I got the ...
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2answers
139 views

Unusual heat rise on rectifier

Trying to refresh my knowledge I was design and construct a fixed unregulated power supply 12V/5A using parts that I have around. Parts are 150VA/12V toroid, an 25A rectifier bridge in KBPC case and ...
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2answers
85 views

Is it possible to run a Buck converter with rectified AC supply voltage?

I know that a standard Buck converter requires DC voltage as input. But if your primary input supply is a high AC voltage, it is not very easy to make a clear DC voltage out of it. For example, if I ...
2
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2answers
425 views

Frequency of output of full-wave rectifier

Frequency of output voltage of full-wave rectifier is twice of frequency of its input voltage. This is what I read in a book but don't know how to prove it.Please explain
4
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1answer
397 views

Bridge rectifier circuit

The full wave bridge rectifier shown provides a DC output voltage of +/- 15 volts on which 1V peak to peak ripple is allowed. The supply should be capable of providing 1A DC current to its load ...
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0answers
66 views

How can I size this power electronic circuit?

I have to size a circuit with a 230V AC, 400 Hz, 500 KVA generator, a three-winding transformer and a 12-pulse parallel rectifier; the rectified output will be 270V DC. I've created the schematic of ...
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1answer
54 views

Power adapter outputting incorrect voltage [duplicate]

I have a power adapter that, according to the label, is rated for... Input : AC 220v Output : DC 10-12v 2000MA It has dual outputs allowing me to power two devices at once. I am plugging it into a ...
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1answer
84 views

car air compressor power supply unit [closed]

I want to power 12 V 180 W car air compressor from a 220 VAC source, without transformers. I want to power the pump after rectifying the 220V AC. Does that mean the pump will draw 3A or will it draw ...
4
votes
2answers
876 views

Precise Full-wave rectification

I've been for quite some time now, trying to create a precise full-wave rectification of a signal coming from a CT sensor SCT-013-030. Here's the circuit: simulate this circuit – ...
2
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1answer
126 views

Is there a rectifier scheme for tri-phase which is more efficient than the bridge rectifier?

Because of the topology of tri-phase bridge rectifier, every phase is active (i.e.; feeding the load) only for 33% of the time. It feels like we are not fully utilizing all the three phases, and ...
2
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1answer
287 views

precise half-wave rectifier problem

I'm actually trying to build a precise full wave rectifier. But after a first failed try, I though I would better be off break down things to analyse every part of the circuit. So, I started building ...