Questions tagged [rectifier]

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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27 views

How can I calculate the RMS and Medium Voltage in a Controlled Three-phase Full-Wave Rectifier?

I want to calculate Vrms and Vmedium for the angles of 30º, 90º and 150º on the circuit above with and current source and a resistor load. I found a variety of formulas on the internet, but them all ...
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60 views

Is the peak-to-peak voltage the same as the peak voltage in rectified voltage?

I have a homework in which in need to calculate the peak-to-peak voltage through a half-wave rectifier, center tapped full wave rectifier, and bridge full wave rectifier. What is confusing is that ...
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What's wrong with my diode SPICE model for the HSMS-2860?

To be brief, I am as new as they get to creating SPICE models for components so I'm walking blind. I was trying to create a SPICE model for the HSMS-2860 diode. HSMS-2860 Schottky Diode Datasheet Here ...
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Bridge rectifier still putting out ac and dc, why?

I have a bridge rectifier on my snow blower and it still producing 8 V of AC current and 24 V of DC current. Anyone know why it would still be producing both AC and DC?
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Current limiting rectifier with capacitve reactance (isolated)

[UPDATE] I have answered my own question with links to experimental data and theory. Please expand on that answer if you can for the reference of future readers. Thanks for replies so far and ongoing....
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108 views

Why am I getting this oscilloscope reading? (Half wave rectifier)

I’m trying to use a half wave rectifier with a capacitor filter and instead of getting a ripple voltage at the output it’s giving a signal that looks like white noise(pic below). Any ideas? (a signal ...
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121 views

What's The Purpose of One Additional Diode Here

I'm trying to build a AC/DC buck converter and I've found an application note from ST. Two diodes are connected series at input to rectify the AC, but one is enough to have a half wave rectification. ...
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51 views

ADS Simulation of IV Diode Characteristics

I’m still quite new to ADS, and I’m trying to get a simple simulation of the IV diode characteristics. I want to plot the diode current against a DC sweep from -0.2V to +0.2V Here’s what I’ve got so ...
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Bridge Rectifier Network with three multimeters set to DC

1. Is the transformer functioning properly according to the reading of DMM1 (115-V rms)? In my opinion, the transformer must be working fine in this case. The turns ratio is n=1 (1:1); therefore, it ...
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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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59 views

LM2596 voltage regulator not providing steady voltage

I was trying to simulate a 3 phase AC full wave rectifier, and wanted a 5V output. I connected an LM2596 module to turn the rectified voltage into the desired 5V output and ran the simulation in ...
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186 views

Rectified Voltage doesn't seem possible

This is my first question on this forum. I recently bought a used guitar amplifier and have the schematic. It's been almost 30 years since I worked in electronics but I thought maybe I could handle ...
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Current-voltage characteristics of silicon carbide luminescence

I am currently studying the textbook Light-Emitting Diodes (3rd Edition) by E. Fred Schubert. Chapter 1.2 Henry Round's demonstration of the first LED says the following: The mechanism of light ...
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164 views

Understanding how the simple precision rectifier works

I'm specifically talking about this: If I try to graph \$V_{out}\$ , considering that I'm supplying \$V_oSin\left(\omega t\right)\$: I would start by assuming that the diode is reversely biased, ...
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42 views

How to troubleshoot low-voltage home lighting system from 50s

My home, built in the 50s, has a Sierra low-voltage lighting system, where low-voltage 24DC switches control relays that power the normal 120AC lights. In the last week, the switches have failed ...
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Ungrounded laptop power brick

I'm travelling at the moment and the three-prong plug on my laptop power brick is going through a two-prong adapter and therefore losing the connection to ground. The laptop stopped charging and I ...
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142 views

Is this DC instalation a dangerous situation?

At an industrial plant, we have three electrolytic cells supplied with a 6 V Rectifier (max current 10 kA). Each of the three cells is currently absorbing ~1000 A at 6 V through 8 240 mm² copper ...
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What is the difference between Rectification Efficiency and Transformer Utilization Factor?

As I was studying half-wave rectifiers and why they are less efficient than center-tapped and bridge type full wave rectifiers, I came across these two terms that both try and describe how well the ...
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69 views

Identifying which diodes are on in a full wave rectifier

For the circuit above, I am looking for which diodes are on during the positive and negative cycle. Is it safe to assume that I should just trace the path of the current based on where the diode is ...
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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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31 views

Inductive half wave rectifier analysis

The following analysis is taken of power electronics book of William Hart I do not understand the process to pass of first equation to second, solving the derivative of the first equation and ...
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215 views

How can I explain the unexpected negative voltage in the output signal obtained from half wave rectifier?

I observed the output signal of half-wave rectifier sending sine wave and square wave for an experiment. The rectifier was built with a 1N 4001 diode and a 100 ohm resistor. The output signal across ...
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87 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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66 views

Half-wave rectifier with resistor and inductor load

I am studying a half-wave rectifier with a resistor and inductor load. It is commonly taught that the diode conducts when it is forward biased- that is, the anode voltage is greater than the cathode ...
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67 views

Rectifier unit in Neve 33609 Compressor Schematic

Real quick question, I'm analyzing the Neve 33609 schematic (as shown below), and I can't figure out what is responsible for rectifying the AC audio signal into a DC control voltage. If anyone has an ...
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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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307 views

Why is my half-wave rectifier output in mV when the input is AC 10Hz 100V?

I have made this circuit a handful of times in real life and it is giving me a positive cycle waveform. Why is it not working now? The input is taken from the IP Test point and ground and output is ...
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53 views

Snubber on rectifier diode

It is rare to see a snubber circuit added transistor like that. On the secondary side, an NPN transistor is paralleled to a snubber capacitor. How does it work? Is it useful or just little ...
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Capacitance detection circuit in LTspice

I have designed a circuit to detect ice in software LTSpice. When I did ac analysis, it shows the gain is constant from 10KHZ to 10MHZ. That means, I can detect ice during operationg the sensor with ...
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73 views

AC-DC converter to drive a dc motor (treadmill)

I would like to fix my treadmill. I have connected a SCR voltage dimmer (WINGONEER AC 220V 4000W) in series with a full-bridge-rectifier (GBPC5006), to the dc motor. When I move the potentiometer, ...
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Design a circuit in Ltspice based on the input and output

I need to design a circuit that takes a sinusoidal input with peak of 8V and generate an output such that the positive peaks remain the same and the negative peaks get inverted and have a peak of 4V.
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Why is the efficiency of a half wave rectifier equal to 40.6% and not 50%?

I'm trying to derive the efficiency of a half-wave rectifier using the definition for efficiency, $$\eta = \frac{\text{output power}}{\text{input power}}$$ And I also know that $$P = V_\text{rms} \...
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68 views

Rectifier ripple on DC-DC buck converters

I'm using the LMZ36002 buck converter module, which is a 1 MHz 4.5-60 V 2 A buck module. This means there is already an integrated inductor in the chip package. This device will accept any voltage ...
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54 views

How can a boost PFC (Vienna rectifier) lower the voltage?

I found a Vienna rectifier circuit as a PFC. Output range: +350...+500VDC and -350...-500VDC. Input: 400VAC (three phases). To begin with, I simulated a basic three-phase rectifier: Here's the 561V ...
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66 views

Double voltage in full wave rectifier

I made a simple full wave rectifier using a center tapped transformer and 2 1N4007 diodes. The DC output is around 14 volts but when I connect a 100uF capacitor with the output leads of the DC output, ...
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86 views

Why only half the peak voltage in my half wave rectifier?

I built a simple half wave rectifier using a center tap transformer and a 1N4007 diode. I connected the 1N4007 diode to one of the live secondary wires of the transformer and measured the DC voltage ...
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Multiplexing AC voltages

I have three 24V AC lines (from a sprinkler controller) that I need to multiplex into two 12 DC lines. Here's the circuit I designed, with the AC inputs on the left, and the DC outputs on the right. ...
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87 views

Do home UPS (mostly advertised as inverters) have a rectifier built in?

This is regarding home UPS/inverters which are typically known to convert the DC from the battery to AC, so the AC can be used for household purposes. What I don't understand is how the batteries are ...
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624 views

Should I buy a diode with higher maximum ratings if it costs the same?

I need a diode that prevents surge currents from a DC motor flowing back into the power supply. The motor draws a continuous of 10A at 12V. Was checking a store for a rectifier diode and found out, ...
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61 views

How can this circuit be best described?

Here, the green waveform is the input waveform(V1) and the blue waveform is the potential drop across Vc1 and Vc2. To me it seems like a peak detector getting clamped, but then the first half cycle ...
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58 views

What is this circuit with increasing voltage of full rectified wave?

{ The first image is original circuit.} { The second image is the output across RL resistor with ac source amplitude voltage 5V. } {Simulated circuit with output measured between A and B nodes.} To me ...
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77 views

Can the skin / copper oxide / copper junction of an old exposed mains conductor produce a safety-significant DC component to a shock?

Copper oxide diodes are not common now but were a standard item along with selenium oxide for early power rectifiers (think old radios and those components with stacks of fins). Can the oxide layer on ...
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77 views

Regulating high voltage high current ac supply

I am trying regulate ~250 ac to have regulated 400v 5A dc. I have a variac and also a step up transformer (1:5). I know for this type of high voltages full bridge SMPS are used. But actually I don't ...
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80 views

Precision rectifier doesn't give expected output

I'm currently designing a precision rectifier. I have a current sensor that outputs a current (AC) of 0.3mA to 32mA for 0-100A across a resistor of 510 ohms. As the value of the voltage will be around ...
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38 views

Synchronous Buck Converter Mathematics

Ive been trying to find a mathematical explanation on how a Synchronous Buck converter maintains continuous operation under ideal steady state conditions. I understand the underlying concept but i ...
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120 views

Can I use rectifier diodes with DC (1N4002)?

I have an HTronic 19 00 33 AC/DC converter. I would like to use it as a DC/DC step down converter to transform 12V DC into 5V. I could not find the datasheet in English, here is the German version. ...
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Electrical energy transformation

I'm working on a DIY solar inverter. The goal is to make the battery connected to it rechargable by both energy from solar panels and AC mains (if there is power supply.) My battery is 24V DC, AC main ...
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1answer
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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28 views

Simple rectifier, solar to 18v ac

Would it be possible to charge a Ring video door bell from solar power, but using the doorbells external pins for the wiring of a 8 to 24v ac transformer. Say using a 12v solar panel, would regulation ...

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