Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

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.

0
votes
0answers
24 views

Loading an AC generator with DC Chopper + resistor

We're in kind of a bind at work and looking for easiest / cheapest way to load an AC generator (Synchronous permanent magnet machine). We have access to a big 300A Mosfet module along with it's ...
-1
votes
0answers
33 views

Rectifier for transformer [closed]

I’m searching an appropriate half-wave rectifier so I can use a neon sign transformer as a power supply. I want to be able to charge a HV capacitor using this setup. If this is possible would I need ...
0
votes
1answer
50 views

Impact of capacitor on half-wave ac to dc rectifier

I'm trying to convert 24AC from a furnace into a DC signal I can step down to power a 5 volt microprocessor. Following this blog post I bought a 1n4002 diode and a 220 uF capacitor. Then I built this ...
0
votes
0answers
34 views

Motorcycle regulator / rectifier type ID Diode vs MOSFET

Application is motorcycle regulator/ rectifiers Older ones used basic diodes The ACG output is rectified to charge batteries. When the battery voltage is high, these regulators/rectifiers short the ...
0
votes
0answers
31 views

Simplest and chepest way to provide 3.3V@150mA from power supply running at 6Vrms@120mW

I have a power supply that can provide 6Vrms (50kHz) and 130mW max (maybe a bit more). Unfortunately, for my project I need a peak of 150mA in 3.3Vdc (ESP8266) in regular basis during TX but most of ...
0
votes
3answers
84 views

Ripple in full wave rectifier

I've searched the forums but have not found what I'm looking for. The problem at hand is that I have no idea how to successfully calculate the ripple over the load in this schematic: simulate this ...
-1
votes
0answers
58 views

Wiring a led and light bulb 120V

I am trying to wire a 120V light socket and one led to a three way rocker switch so one way the led comes on the other way the light bulb comes on. I don't know how to get the 120V down to the 3....
1
vote
1answer
23 views

Vdc in ripple factor

V_p(rect) is the rectified unfiltered peak voltage V_r(pp) is the peak-to-peak voltage after filtering by a capacitor Here is a picture: V_r(pp) is given by the expression: Which I have no problem ...
0
votes
1answer
52 views

Decoding circuit with transformer topology

I am studying a circuit used for mobile adaptor, where AC to DC conversion is done through bridge rectifier ABS210. Transformer is used for isolation along with IC LP3783 (Offline PSR Driver) and ...
1
vote
2answers
71 views

Op-amp (LM358N) half-wave rectifier and 3.3V clamp

I was wondering if I could have some feedback on this circuit. The goal is to: Input up to 18VAC sine waves (possibly noisy) up to 20khz. Output 3.3V digital pulses. Minimize discrete part count. I ...
2
votes
0answers
48 views

Simplifying this circuit using optotriacs?

I'm currently trying to create an interface between my Arduino-compatible (NodeMCU) and my OpenTherm boiler. OpenTherm is a protocol used by some boilers (mainly in Europe) which allows for the ...
0
votes
1answer
57 views

Need help determining smoothing capacitor(s) for rectifier

I am making a rectifier for a single N-Scale train building. It takes DC, but the train controller gives out 19VAC. I have 4 1N4001s and some capacitors, but probably not the right size/uf. I only ...
0
votes
1answer
110 views

Rectify 220v ac to 220v dc using mechanical system

I want to have 220v dc using a mechanical system (without using diodes ,or with using homemade diodes) so I came up with this idea : when the wave is positive the electromagnet atract the bendable ...
0
votes
0answers
41 views

Difference of single phase rectifiers

I am trying to understand the difference between the following rectifiers: What would be the difference between these two output voltages? I can see that there would be no negative output voltage in ...
1
vote
1answer
40 views

Why does the TUF formula use \$V_{rms}=\frac{V_m}{\sqrt{2}}\$ and not \$V_{rms}=\frac{V_m}{2}\$ for a half wave rectifier

We know that for a half wave rectifier \$V_{rms}=\frac{V_m}{2}\$ and \$I_{rms}=\frac{I_m}{2}\$ But the Transformer utilization factor uses \$V_{rms}=\frac{V_m}{\sqrt{2}}\$ (But uses \$I_{rms}=\frac{...
0
votes
3answers
41 views

Half wave sine form factor example

Hint: in my calculations below, to make math easier, i assume that the diode = ideal(there is no 0.7 voltage drop across the diode) Vrms = 0.707Vp => Vp = 14.1v, therefore Vp(load) = 14.1v ...
0
votes
3answers
115 views

What enables the home appliances and electronics to work on single-phase?

Talking about the home appliances and electronics, if it is single phase that we are using in houses and currents get to zero every half cycle, how do the home appliances (using AC) and electronics (...
0
votes
0answers
38 views

DC Variable power supply

I would like some advice on a particular circuit design for a variable DC power supply. Here is some information about what I want to do: I want to do open and short circuit tests on an alternator ...
0
votes
1answer
88 views

why the power absorbed by RL load in half wave rectifier is I^2R not V^2/R nor VI

why the power absorbed by RL load (resistor in series with inductor) in half wave rectifier is I^2R not V^2/R nor VI. V , I are with RMS value.
1
vote
0answers
56 views

Discrepancy between simulation and measurement for a voltage doubler/ rectifier design at 5.8 GHz

I am designing a pretty straight-forward voltage doubler at 5.8 GHz with MACOM's MA4E1317 diode, which I have used before and know from previous experience that matches pretty well with the spice ...
0
votes
3answers
122 views

Why are the diodes in this circuit forward biased in spite of no current flowing through them?

Considering the following circuit, Normally in the +ve half cycle SCR1 is triggered after it takes its triggering gate pulse and then D2 becomes intrinsically forward biased so it's on and conducting ...
1
vote
1answer
44 views

Discrepancy between calculated rectified voltage and measured value

I'm experiencing some problems with a simple task. Assuming we have a circuit like this: simulate this circuit – Schematic created using CircuitLab To calculate the rectified voltage I'd use ...
1
vote
1answer
42 views

Measuring 24V AC input state with microcontroller

I need to measure the state (on/off) of a 24V AC line that is currently powering a solenoid valve. The microcontroller will take over the control of the solenoid through a solid state relay, but I ...
3
votes
1answer
140 views

What is a typical reverse recovery time for a zener diode, or is reverse recovery time not applicable to zener diodes?

A little background.. I'm trying to understand how zener diodes respond to high voltage transients. I stumbled across discussions of reverse recovery time and I'm curious how it applies specifically ...
1
vote
1answer
95 views

Trying to understand floating voltage

I'm trying to understand the concept of a floated voltage, and why it is needed in some cases. For my own case, I am using a variac connected to a rectifier to provide a DC voltage for a circuit, (...
0
votes
2answers
133 views

How to solve a a full wave rectifier with two diodes and a ground in the middle?

This is the problem I am trying to follow along with the solution but I don't understand what is happening, how do I handle the random ground in the middle?? is the node between d1 and d2 40Vpeek and ...
1
vote
1answer
182 views

MOSFET - shorting the gate and source

I am currently in the fourth year of my bachelor's degree and my knowledge on this is really really really very limited, but i got a simulation circuit of an isolated dc-dc converter from my senior ...
1
vote
3answers
185 views

Is this a selenium rectifier?

The item below is one of two components of an old (c 1950?) electric chisel. (The other part is a reciprocating solenoid.) The name tag on this part says "Electric Converter", with a 6 amp rating. ...
0
votes
2answers
238 views

What is the purpose of grounding rectifiers?

In the centre tapped rectifier: It seems as if the highlighted ground line would provide a short circuit for any current developed between the top/bottom wires and the centre tap, eliminating any ...
1
vote
2answers
484 views

How does this opamp full-wave rectifier work?

I want to understand how the following circuit works. I understand OpAmps, diodes, and voltage dividers pretty well; but put this circuit together, and I don't know how it affects positive or negative ...
1
vote
1answer
57 views

Using Opamp as rectifier

Schematic below is a current sensing circuit, Rs is 35u sensing resistor and current I1 is bi-directional. I am confused on why diode D2 makes this circuit a full rectifier. Schematic: Simulation ...
2
votes
2answers
579 views

Full wave rectifier with a high DC offset voltage?

For a full wave rectifier, can it rectify an AC wave with a DC offset above the rated voltage of its diodes rated voltage if the peak to peak voltage of the wave is within its rated voltage? Like if ...
0
votes
2answers
117 views

Output voltage of a rectifier

Is the output DC voltage of any rectifier (Halfwave, Fullwave or bridge) simply equal to \$\sqrt{2}\$ times Phase to neutral AC input voltage? Or does every rectifier circuit have its own formula to ...
2
votes
1answer
47 views

What are the differences between Greinacher and Bridge voltage doublers?

I was reading a wiki article on Voltage doublers, and wondered - what are principal diffirences between two following schemes: They all share same amount of components, but when and why should be one ...
1
vote
2answers
103 views

Diode Array for Full-Wave Rectifier for PoE

I was looking for SCHOTTKY diode for designing Full-Wave Rectifier for PoE. I was searching for the diode but came across the ...
0
votes
1answer
107 views

MagJack for PoE Powered Device

I am adding Power over Ethernet functionality in my Toradex's System-on-module (Colibri iMX6ULL) based carrier-board design. I ...
1
vote
0answers
219 views

IGBT failure and protection

I have a 3-phase bridge rectifier (shown below). I am using an IGBT (STGE200NB60S) to limit the inrush current from the capacitors at start up. I also added the NTC thermisters to help with the inrush ...
1
vote
1answer
385 views

What is Maximum Average Forward Rectified Current? (1N4001 Diode)

I am wondering if someone can explain what Maximum Average Forward Rectified Current means for a diode. I see that this is marked as 1 Amp in the datasheet for the 1N4001. I have not been able to find ...
1
vote
3answers
81 views

Is it possible to use DC-restoration as a half-wave rectifier?

A simple DC-retoration circuit: seems to do the about the same job as a half-wave rectifier, is it standard to use these two circuit instead of each other ? I tried to increase the capacitance of ...
0
votes
1answer
148 views

how to reduce the rms value for a bridge rectifier?

hello!! can any one help me with this circuit.i need to reduce the rectified dc voltage.is it possible to reduce the R.M.S value after the bridge rectifier i.e before the capacitor? practical value (...
-2
votes
3answers
251 views

What is generic formula for min and max levels of rectified AC voltage?

For example, if i have 1 phase AC voltage with 1 volt peak level and rectify it., i would get some pulsating voltage V = abs(sin(t+0*pi)). Its minimum is 0 volts ...
0
votes
1answer
719 views

How is the extinction angle for a half wave rectifier with RL load calculated?

I have a couple of notes about the half wave rectifiers with the RL load, but I dont quite undestand how is obtained the extinction angle \$\beta\$ ? simulate this circuit – Schematic created ...
-1
votes
2answers
105 views

Could the extra power not used through a regulator or buck converter be used in another load without taking away power from the regulator? [closed]

I’m making a design for a crank generator which will charge my phone and a battery at the same time. The generator will be connected to a bridge rectifier, then a buck (step down) converter, which ...
4
votes
6answers
1k views

Bridge Rectifier Fails When AC Inputs are Shorted

I am working on a design that involves powering a 3.3V microcontroller off a doorbell transformer but I am running into an issue with the bridge rectifier failing when the AC inputs to the rectifier ...
0
votes
3answers
112 views

Full wave rectifier

In a full wave rectifier (consisting of 2 diodes), ac is converted into DC. Confusing part is I know how the rectification is done, but still how the input ac current (consisting of both negative and ...
0
votes
0answers
35 views

Derivation of the equivalent model of a resonant converter

I'm trying to understand how a resonant converter works, but one thing confuses me, and this thing is the derivation of the equivalent model using first harmonic approximation (FHA) method. At first ...
1
vote
1answer
67 views

Building a High Voltage Rectifier with a continuous negative output

simulate this circuit – Schematic created using CircuitLab In the past, I have worked with high voltage projects, but seldom with HV rectifiers. Thus, I was curious how I could build a ...
0
votes
0answers
23 views

ATRU 18pulse winding topology advantages

There are three main winding topology when discussing ATRU's T-delta, Delta and Polygon The question is though... when to use which topology... The general approach I take when dealing with ...
3
votes
3answers
110 views

“Active Low” SCR

Background: I'm working on a circuit that uses an ATmega 328 processor, and a hall effect sensor. We're creating a small wireless sensor, so what we're focusing on now is power consumption. We want ...
0
votes
0answers
49 views

Rectified X2 circuit gives 2 voltages depending on how the powerplug is connected to the wall (EU)

simulate this circuit – Schematic created using CircuitLab I'm trying to control a mosfet directly from a phase shifted 50Hz sine wave. But when I was trying to understand the voltage drop with ...