Converter Definition and 257 Threads

Hello, I do not know if it's really upper physics but I have some exercices to do and I find them a bit difficult for a beginning. This is a circuit: http://up.sur-la-toile.com/iu7M I'm asked to simplify it like shown on the drawing so that afterwards I get this circuit...

hello..im final year student..i have some problem that i doesn't know how the first step to design the boost converter circuit which is step up the voltage from 5v reach at 24 volt..anybody can help me..:smile:

can anyone suggest a good site where i can get a .3gp converter for free? I a tried a couple a sites (google search), but those .3gp videos fail to play on my cellphone.

Here is a good tool for checking your solution when converting a number from decimal to binary or from binary to decimal. It supports integer numbers (8, 16 and 32 bits) for both unsigned and signed numbers. It also includes a converter for single precision and double precision numbers...

when u go up in volts then your amps will go down. How can I then increase amps?. Is it just by increasing the power of the source? Any help. Explain please.

This is close enough to a homework question so I've put it in this section, though maybe it should be posted in the EE section. I've been looking at the equations for boost converters today, and I'm interested in the problem of how long it would take a bank of capacitors to charge through an...

Hi guys, I have this problem for my undergrad final year project. I'm trying to design a control system to regulate the voltage output for a boost converter and I am not too familliar with control theory. I've built the control system in MATLAB based on the basic boost equation...

Ok, first post so be nice guys! I've designed and simulated a design for controlling a brushed DC series motor in OrCAD and it does what i was aiming for it to do. Which is to step down voltage to an average of 50% with duty cycle at 50% etc. I thought I had it all figured out but...

hi, i have connected a RS-232 to RS-485 converter to the RS232 port, and i would like to know if any1 could tell me how to send a byte or signal to it using hyper terminal.. thx~

Are there any truly free video files converter out there? I have seen many that give you a trial version but for the full version you must pay. I am trying to convert MOD files from my camcorder to something I can watch on WMP.

I'm trying to understand the converter in this link: http://en.wikipedia.org/wiki/Power_inverter I don't see how the two transistors and the DC source cause the curretn to alternate through the windings. It seems that both transistors would be passing current constantly, not alternating...

Hi there guys, I'm trying to design a bidirectional buck boost converter as part of a larger three way solar charge controller project. The buck boost part will be connected to an energy storage device, which will probably be a 2F 5V ultracapacitor. The aim is to step down 9v source to...

i need help please, now i try to design boost converter that robust to the variation of the input votlage. I'm using PSIM to simulate the design, but I'm kinda confused to make the variation of the input. What i should do? what circuit that i should create to make the input varies in PSIM??..

Hello, New poster, Re: Torque Converters (automotive drivetrain component.) 1) Can anyone briefly explain the theory of operation of the device? 2) Why is it not present in vehicles with manual shift? 3) Is this a fluid power device? 4) Any on-line resources available for good info...

HI, I'm currently using a microcontroller 16f877A. The Tx and Rx pins of my microcontroller will output either 1 or 0 respectively. The microcontroller is connected to my laptop using RS232-USB converter. The microcontroller has been programmed and the connection was tested. May i know what is...

hello can anyone give me idea who to converte T to F and what is the requirements to do that in the lab ( practical ) means the circute which use to convert it and i think should be used sensor and then use vco but i have small problem (in experience ) to select the circut that must be used...

i want to design cascade buck converter,but I'm kinda confuse about the controller that i'll use for the converter...there are 2 options, i make the controller independent from 1 converter to another, or i just make the controller dependent, it means that i have only 1 controller for all...

I found an old circuit diagram online but have never been able to find it again. Here is what I am trying to do: The three-phase DC motor I am working with is a 4-pole motor. Therefore there is a direct relationship between the frequency between the motors phase-leads, and the current RPM of...

I'm not so familiar with dc-dc converters. Here are my two questions, maybe stupid ;) 1. How to get a steady 3.3v from 3 alkaline batteries whose output goes from 4.5v to 3v? Are buck-boost converters designed do this job? 2. How to estimate the input current of a dc-dc converter given...

Hi all.. I'm designing a Safe deposit box.. It use motor to open and close the box.. but i want to know if the door is blocked when closing/opening.. I realize that the current needed for the motor will increase if it's blocked.. I'm using ATmega ADC, but it need voltage input.. so...

Hi guys, i need help on my assignment. The problem i have is reading the output of this IC chip (UC3524). Apparently you can't just connect an oscilloscope to the output and get a reading. My teacher said something about using transistor? Here is the IC chip's schematic...

Hello all, If i use 4-bit A-D converter to convert an analog voltage of say 8 volts, then can some one tell me what's the maximum possible error that i can expect in my result and how to predict it before performing experiment. Thanks.

Hello. I'm new here. I just discovered this fora thru Google and was hoping someone could help me. It will be obvious in a second that I'm not an engineer, so please pardon the silly/simple question: I have a device that was built for a car/RV that I want to run at home. (It's a...

Hello All, I'm working on a project that requires an isolated switching supply that will output 15V from a 9-18V input at up to 2W. I have found the perfect DC-DC converter module for the job from MicroPower Direct but I'm trying to see if it would be possible to build something with similar...

Homework Statement A 0-10 V, 10-bit A/D converter displays an output in straight binary code of 1010110111. Estimate the input voltage to within 1 LSB (Least Significant Bit). Homework Equations Resolution = Efsr/2^M. (where M= 10 in this case) Eout = X/2^M (where Eout is the...

can someone tell me "How long will an 10 bit Analog/Digital convertor take to complete its conversion approximatly?" ? clock pulses does it depends on the number being converted? Need your help ...thank u

[SOLVED] Blast furnace and oxygen converter FACT: Scrap metal is added to the basic oxygen converter to control temperature in the production of steel from pig iron. QUESTION: How can one control the temperature in the production of pig iron in the blast furnace? Scrap metal or something?

i'm supposed to design a boost converter with the following parameters: supply voltage = 9-15 v output voltage = 18 v output current = 0.1 - 2 amp voltage ripple = 5% efficiency = 80 - 98% i came up with the following: let f= 30 KHz min C=12.3 uF min L=375 uH average supply current = 4 ampi...

Hello All, I have a situation where there is an IC that takes 5V at 7mA on an isolated area of my PCB. I have two DC supply sources to choose from to power this chip; either a 5V supply (which has to be isolated from this chip) or an 18V supply which doesn't need to be isolated from it. I...

At a time when pc's come with microprocessors clocked at frequencies of the order of 4 GHz, it must be possible to drive a D/A converter at microwave frequencies. Anyone know of hardware to do this? Anyone know of suitable hardware to transmit the waveform at a power density comparable...

Can anyone please send me the simulink model of boost converter i couldnot find any in the MATLAB help tutorials... I didnot know how to give the pwm control in simulink..could anyone please send me the model..

hello evryone .. can somebody help me with a PASCAL coverter prog for converting keyboard keys to correspondig morse code values! i noe of no languages other than c and c++ .this is actually an electronic project i#m making and its based on ic 555 timer that upon clicking on keyboard keys...

Anyone have a favorite program for converting documents to PDFs -- esp. the free ones! :-) I would like to try a couple and I want to narrow my search here first with the experts! Thanks!

Hello, I want to connect a d/a converter [e.g, MAX515] to RS232. I need a 0-5v output. assuming that I know how to write a code to output binaric signal, how do I connect the converter? I don't really know what to do with the clk, sync and Vres legs at the DAC. Liad.

Hello Everyone, I would need some advice on what type of down converting analog to digital Converter (ADC) board and an digital to analog converter (DAC) board to use for my digital radiometer. Here are the specs for my ideal boards: Analog to Digital Converter requirements: Single...

Hi, I am trying to filter noise out of data gathered from an analog to digital converter. I've looked at averaging techniques but I fear that they cause too much data loss. Can anybody recommend other smoothing/filtering techniques that might result in less data loss and can be done...

Can anyone give me some idea of what is a possible output of analog-digit. converter 8-bit resolution. I don't have an opportunity to plug one in, but need some sample data... Let't say input frequency is 5KHz. Thanks!

i have a problem to make a voltage to current converter circuit and current to voltage converter circuit. does anyone have an example the circuit is? thanks...

Hi everybody, I'm trying to design and build a matrix converter, but I think I have read contradictory information about which power stage topology could be more recommended. Should I use common collector or emitter configuration for low power systems? with discrete devices or trying to use...

Nice free units converter http://www.kamlex.com/index.php?option=com_content&task=view&id=12&Itemid=28

can we use a same A/D converter as a D/A converter or vice-versa. and which type of converter can be used in that. is it possible to do so.

I was wondering if anyone knew of a way to convert a short mpeg to gif format. I don't have to do it to terribly often. Any ideas, recommendations? Can it even be done?

I want to have a glue about MCTs (metal oxide semiconductors controlled thyristors ) and matrix converter, current commutation, four step current commutation. thanks!

I've playing around with Latex lately and put together a webbased converter that can convert Latex code into either an image (like in these forums) or HTML. I think there's some Latex tags that aren't supported very well, particularly in the hml conversion. For the Latex to .png I'm using a...

can someone please explain how a digital to analog converter works if say your equipment includes a computer with a software like Labview, a Lab-NB board, a terminal block (USB) and an oscilloscope. what is each component doing and what is being transferred between them? thanks.

i am trying to design a differential current to voltage converter using opamp can anyone suggest me how i can implement that...or if anyone knows of any links where i can find the circuit...please let me know thanks

Does anyone know of a good m4P (iTunes format) to mp3 converter? I have tried a couple of shareware progs that say they can do it, but I have had no luck. Thanks.

"Heat to energy converter" Does anyone know what this might be lol. Someone said they used a "heat to energy converter" to make electricity. Is there a such thing or am i going to have to beat someone down...

I was reading up on torque converters. They looked very bulky and heavy. I was thinking perhaps a torque converter could be made better if it was simply two turbines and a tube of varing x-sectional area. The idea is a small centrifugel turbine pumps fluid through a pipe with a very small cross...

After being studied some about automatic gearboxes, I haven't really understood why is put a torque converter just at the gearbox entrance shaft. Surely as any gearbox, it needs some type of clutch. The torque converter can play the same role as a clutch when is functioning as fluid...