Electrical device that converts direct current (DC) to alternating current (AC).

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4
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2answers
160 views

Simple Oscillator Designs

I want to be able to create simple oscillator circuits for clocking in digital circuits and am wondering what is the most simple design people know of? I could use a simple ring oscillator which is ...
0
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1answer
52 views

falling delay inverters VLSI CMOS

How do I obtain the falling delay driving by signal A: Data: ...
0
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0answers
34 views

4-lamp-inverter with LCDs designed for 1 or 2 lamps

can i use a 4-lamp-inverter with LCDs designed for 1 or 2 lamps? The unused lamp connectors could be closed with resistors as suggested here. Or, is it safer to use an 1-lamp-inverter with an LCD ...
1
vote
2answers
69 views

Inverter constructed using LDMOS transistors

I have the following question: is it possible to construct an inverter using LDMOS transistors when HV power supply is equal to 30 V and maximum VGS for LDMOS transistors is 5 V? Moreover, lower MV ...
0
votes
1answer
36 views

I am looking to isolate an inverter when power from a generator is applied- debounce relay?

I have tried to find specific info on this scenario with no luck The situation is this; Off grid power system 12v battery store runs 12v lights etc. and an inverter for things difficult to run or ...
0
votes
2answers
57 views

Graphical solution of BJT inverter

I have the following BJT inverter circuit and graphs of its electrical characteristics. I need to graphically find the DC response characteristics of this inverter but I don't know how to proceed.
0
votes
2answers
126 views

How can I generate a sinusoidal voltage and current waveform using half-bridge or full bridge inverter?

I know how a half bridge and full bridge circuit looks like. What I don't understand (and I simulated it) is that whenever I drive the switches using a pulse generator I get a square wave as an ...
1
vote
2answers
88 views

How does one implement the following function with these tools provided?

Suppose I have a function defined as follows, such that it is expressed in POS form, with the product of the following max terms of 4 variables (A,B,C,D): 0,3,4,7,9,10,12,15 and I only have a 4 to 1 ...
0
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0answers
43 views

Why Inverter with feedback oscillates ? [duplicate]

Phase difference between input and output for this circuit is 180 degree. That means Barkhausen criteria is not satisfied,still circuit generates a oscillating signal. Why ?
0
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2answers
117 views

Building “AND” and “OR” gates from tri-state drivers & inverters [Answered]

I'm working on a digital circuits assignment which asks me to prove that if you have tri-state buffers and inverters, you can build any combinational logic circuit. My attempt at doing so would be ...
0
votes
6answers
105 views

Converting PWM to bidirectional square wave?

Is it possible to make bi-directional ( symmetrical) square waveform from PWM signal? Im talking about 40 kHz frequency and 0.5v /-0.5v peak to peak signal.
0
votes
2answers
66 views

Question about CMOS Inverter Oscillator

Using CMOS inverter with crystal and cpacitors, we can make a oscillator. And i find many docs mention the method 'negative resistance'. But, they are not all the same. The method from TI's doc: Use ...
2
votes
1answer
55 views

Does the DC portion of an inverter experience the Apparent Power consumption of the AC part?

If the AC portion has no load, then the DC portion sees it as an inductive load I assume. So does power factor come into play when calculating the DC wattage consumed? Let's say AC is 100V 0.1Amps no ...
0
votes
5answers
331 views

CMOS inverter with feedback

In some circuits such as crystal oscillators, there is a CMOS inverter with a feedback resistor, they all simply say the resistor bias the 'amplifier' and force it to operate in the linear region, ...
0
votes
2answers
76 views

Solar inverter with mains backup [closed]

I'm looking for a way to partially power an applicance (a fridge freezer for argument's sake) using solar/renewable energy. I don't expect the couple of hundred watts of solar power to be sufficient ...
1
vote
0answers
47 views

Preference of MOS resistor as load in MOS inverter [closed]

Whys is a MOS resistor preferred over diffused resistor as load in design of a MOS inverter?
-2
votes
3answers
86 views

How to reduce maximum power rating of dishwasher for use with photovoltaics inverter? [closed]

I have a photovoltaic power system and an inverter with an overall power rating of 1500 Watts. I want to connect a dishwasher which consumes 2200 Watts when heating the water. Question: What is the ...
5
votes
2answers
431 views

Could a modified sine wave inverter destroy/damage the AC adapter for a laptop?

I recently encountered a scenario where I attempted to use a Energizer EN500 modified sine wave inverter to provide power to a Dell 180 watt AC adapter. The circuit powering the inverter was 12 volt, ...
0
votes
1answer
60 views

Will this H-Bridge and it's driver work?

I am creating a half bridge, I though about it a bit and came up with this idea First for the controlling side we have a typical 555 timer wired up like this (But the resistors are variable ...
0
votes
2answers
82 views

Solar panel system with as minimal reliance on the grid

I am not sure if this is the best place to ask, but I am trying to make a solar panel system which will charge batteries with excess energy and will be connected to the mains (i am going to try the ...
1
vote
1answer
63 views

Synchronous rectification in IGBT

simulate this circuit – Schematic created using CircuitLab In above standard 3-ph IGBT based inverter circuit suppose Diode D4 is carrying current because of inductive nature of load. If ...
0
votes
1answer
65 views

EL wire inverter to molex inside computer [closed]

I am trying to rig some EL tape into my computer, but I am unsure where to go at this point. So far, I know that I'm buying this inverter ...
0
votes
0answers
252 views

2n3055 replacement with MOSFETs

I have searched a simple circuit diagram for a 12v to 220v voltage inverter. The circuit has two 2n3055 transistors and I presume it is used for switching. Can I replace them with IRFP250 MOSFETs ...
0
votes
0answers
78 views

Voltage transfer characteristics of a C-mos inverter

How to determine the voltage transfer characteristics of a c-mos inverter during the region when both the p-mos and the n-mos transistors are in the saturation region.I know that both the transistors ...
2
votes
2answers
530 views

Challenges to design high-density power inverter

Google has announced a contest to design a kW-scale (>2 kVA loads) power inverter with 90% size reduction compared to present designs. The goal is running household appliances from a small inverter, ...
1
vote
1answer
108 views

Replacing a transistor in a CCFL inverter circuit

I have a DC-to-AC inverter circuit that isn't working. It takes 12V DC input and is being used to power a CCFL. The circuit looks remarkably similar to the one labelled "Conventional CCFL inverter" on ...
0
votes
1answer
101 views

How does a true sinewave inverter work?

I am an Electrical Engineering student, and when we were taught about inverters (at a power electronics course) we studied inverters using Sinusoidal Pulse Width Modulation. My question is do the ...
2
votes
2answers
146 views

EL Wire vs EL Panel, difference in voltage and frequency needed?

I am currently researching Electroluminescent Inverters/Drivers for a project. There is many accounts that EL Wire needs a higher voltage and frequency than an EL panel or tape needs. (300vpp vs ...
0
votes
1answer
169 views

Protecting a wireless router from voltage fluctuation

Background: I have a wireless router ASUS DSL_N12U. Input voltage and current is 12V , 1.5A respectively. I also have an Inverter (works on three modes: Solar, Battery, Mains) at my home. Problem: ...
0
votes
0answers
52 views

Grid-connected bidirectional inverter?

I'm looking for an inverter where I can set its DC link voltage to the typical 400-700V range and then hope to connect a few bidirectional DC/DC converters connected to batteries. So the inverter just ...
1
vote
0answers
53 views

Electromagnetic interference in a Car

I am currently working with a 12 volt inverter to power EL tape. The tape is wired in various places in my vehicle, I have tested it in my car and I hear a high pitched noise on my radio when I try to ...
0
votes
2answers
145 views

MC34063 dc-dc inverting - capacitor question

For a project I try to build a dual supply for opamps in a device. I bought the MC34063 to invert the DC. The device should be portable, however, the standard schematic in the datasheet uses some very ...
-1
votes
1answer
96 views

Can I make my PS2 kind of portable by using a pure sinewave inverter with no battery and [closed]

I have this pure sinewave inverter And I wonder if I buy this I can make my PS2 portable without using the battery for the pure sinewave inverter (sold separately) because I don't want to worry ...
0
votes
1answer
66 views

Connecting solar panel and batteries of different voltages in series

Will this work? What I want to do is connect a 12v alternator to a battery to charge it which would then be wired in series with a 24v solar panel, but hopefully isolating the voltage. Will this work? ...
13
votes
7answers
2k views

Why are rectifiers-inverters used to drive AC motors instead of using the rectified current to drive DC motors?

I understand the advantages of using a rectifier-inverter system to drive an AC motor instead of simply plugging it into mains power, as it allows much better control of its speed and performance; but ...
0
votes
1answer
47 views

Inverter not showing the right output in HSPICE

This is the code snippet apart from the usual headers in the rest of the file: ...
1
vote
2answers
153 views

Why does my Inductor Get Warm? (Inverter Output Filter)

I have a H-Bridge based Inverter that modulates a 350VDC source into 220V RMS @ 50 Hz. Right now I'm working at just 70VDC but my output inductor is getting quite warm. Here is a schematic: The ...
0
votes
0answers
48 views

Low voltage inverter for low voltage AC

What would be the proper method of making a low (4.2) voltage inverter to get something like a 4.2V AC current?
1
vote
3answers
95 views

Inverter Voltage Control - Stability Concerns

I have a voltage inverter that converts a 400VDC source into sine wave of 240VAC @ 50Hz. The inverter is based on a H-Bridge. The inverter works well but I'm struggling in understand how to control ...
0
votes
2answers
133 views

Ring oscillator frequency

According to Barkhausen's criteria, for oscillation the feedback should be made after phase difference of 2pi and gain has to be >=1. Now when I consider a ring oscillator if 2 inverters are ...
0
votes
2answers
1k views

Converting Inverter Output from Square Wave to Sin Wave

I bought a UPS, it has output of 220v AC, the problem is the output is square-wave, which causes distortion on TV/LCD, is there circuit that can take this Square-Wave as input, and output Sin-Wave? ...
1
vote
0answers
129 views

Removing DC bias current from PWM driven transformer

Previously I asked this question about circuit topologies for driving a transformer by a PWM signal. From the answers and comments under that question, I understood that the DC bias current is ...
1
vote
2answers
527 views

How do I apply PWM signal to the primary side of a transformer to get synthesized sine wave at the secondary side?

I'm trying to obtain a sinusoidal signal (\$f_{sin}=50Hz\$) by using a ferrite transformer. I am going to apply a PWM signal at the primary side (\$100kHz\le f_{PWM}\le300kHz\$). I'm going to use one ...
0
votes
0answers
88 views

Changing synchronous rectifier's output voltage by varying phase

I'm going to design a voltage converter with regulated three-phase 220V 50Hz output. It will consist of mains rectifier, filter (with 310V DC output), a self-oscillating high-frequency inverter, a ...
0
votes
1answer
109 views

Switched capacitor inverter

I am trying to produce negative voltage with this circuit: The circuit with PMOS: when the parameters are: ...
1
vote
1answer
117 views

Is this DSP sinewave inverter a marketing hype?

There are some companies in my country(India) which try to sell inverters for home marketing in the name of DSP Sinewave Inverter and claim are superior to normal sinewave inverters. I am trying to ...
1
vote
0answers
56 views

Switching cold cathode fluorescent lights on and off without relay?

I have a few sets of 2-in-1 CCFLs that are designed to be powered off the 12V rail of a computer PSU. I'm planning to build a large 7-seg display using them so I'd like to be able to switch them on ...
1
vote
1answer
241 views

Aluminum winding in inverters

I am planning to buy inverter. I finalized one model; however, I was told that it uses aluminum windings whereas the other model has copper windings. They recomended I should buy the one with copper ...
22
votes
6answers
3k views

Why have two NOT gates in series?

I have recently been looking at the datasheets for the 74HC139 IC in order to see if it was suitable for my project, and have come across the following logic diagram which strikes me as a little bit ...
6
votes
1answer
244 views

Why two inverters cascaded in multiplexer control signal terminals?

Why cascaded inverters are used in the multiplexer when it is possible to realize the circuit using a single inverter.