What is Converter: Definition and 255 Discussions

A torque converter is a type of fluid coupling that transfers rotating power from a prime mover, like an internal combustion engine, to a rotating driven load. In a vehicle with an automatic transmission, the torque converter connects the power source to the load. It is usually located between the engine's flexplate and the transmission. The equivalent location in a manual transmission would be the mechanical clutch.
The main characteristic of a torque converter is its ability to increase torque when the output rotational speed is so low that it allows the fluid coming off the curved vanes of the turbine to be deflected off the stator while it is locked against its one-way clutch, thus providing the equivalent of a reduction gear. This is a feature beyond that of the simple fluid coupling, which can match rotational speed but does not multiply torque, thus reduces power.

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  1. P

    Engineering Current to Voltage Converter Circuit

    Homework Statement Refer Attachment. I can derive a) easily enough but am stuck on b). Can somebody give a hint to put me on the right track? Homework Equations The Attempt at a Solution R3*V0/(R3+R2)=-isR1 V0/is=-R1((R3+R2)/R3) V0/is=-R1(1+R2/R3)
  2. D

    Buck converter in continuos mode

    Hello, I don't quite understand the buck converter in continuos mode ... looking at the graph for inductor current on wikipedia, at t=0, there is a nonzero inductor current, Imin ... how is this possible when the inductor current cannot change instantaneously (assuming it starts at zero...
  3. A

    Why is my transformerless converter unit failing?

    Hi all, I'm trying to build a transformerless converter unit, that will take an input of 240v a.c, and will output 12v d.c. I used a voltage divider to get a 16v from the a.c supply of 240v and connected my rectifying circuit across the 16v. I got an output of 14.59v. But on connecting the...
  4. S

    Is a polarizer a filter or a converter?

    Does a polarize simply filter photons or does it change the polarization of photons (as well)? let's consider only one photon being sent, at a time, via the polarizerI think the answer might be that: for photons polarized at say 45 degree to the horizontal (or vertical) plane of the polarizer...
  5. E

    Frink - the ultimate physics calculator and units converter

    It only seems to have been mentioned a couple of times in passing, but Alan Eliasen's Frink calculator and programming language (https://frinklang.org/) makes unit conversions simple (converting to SI internally then back to any desired target units. User-defined units may be added, too.) Very...
  6. A

    Difference between Torque Converter and Clutch ?

    i am working on GE GAS TURBINE's Torque converter beginners understanding ... em so confused into a clutch and torque converter ... Can u please briefly make me understand the function of both ... and importance ...
  7. D

    AD converter for ultrasound

    I was building a simple bat detector for a child and also built one for me: http://home.earthlink.net/~bat-detector/SBD2Parts.html Now I was wondering whether it would be possible to built a simple AD converter, which can be fed the amplified signal of the microphone before it enters the...
  8. S

    Why doesn't an AC voltage converter work for DC?

    I understand the difference between AC and DC, and i also understand how an AC transformer works... but I guess not completely. My question is why can't a DC use its emf to create a lower voltage current like AC can? Does the DC's emf accrue over time thus making its transformation short...
  9. N

    DC-HVDC Converter: Full Load & No Load Characteristics

    Hi I have been using a DC HVDC converter for a project. I am a little confused with the full load and no load characteristics for this kind of converter.The user manual states that at full load "X" Volts of input gives "Y1" volts output and for no load that same input voltage gives "Y2" volts...
  10. N

    The transformer section in Flyback converter

    Homework Statement Hi everyone, I am now studying the Flyback converter as a component in a SMPS, my question is on the transformer unit on the converter. There are Primary side and Secondary side in the converter, at any given moment only either of the sides conducts, that is, when...
  11. H

    Calculating Inductance for 5kV Flyback Converter in 1mS

    I am wondering, In a flyback inductor used for a boost converter, what inductance would be required to produce 5kV across the flyback inductor in 1mS with a current of 10mA? I know the formula would probably be V=L di/dt but I'm not sure how to rearrange it to get the correct answer.
  12. S

    How can a digital to analogue converter be designed to produce a squared output?

    How can you design a digital to analogue converter such that it has a squared output. i.e. the analog equivalent of the digital step is smaller at the lower voltage levels than at the higher voltage levels
  13. N

    A confusion in relationship of buck-boost converter

    Homework Statement On book 'Switching power supplies A to Z' page 73 at the bottom, (please kindly proceed to the link below for that page) http://books.google.com/books?id=cuyyQ3N_8hIC&lpg=PP1&dq=switching%20power%20supply&pg=PA73#v=onepage&q=switching%20power%20supply&f=true It stated...
  14. A

    DC/DC Converter or Controller?

    I am just wondering, what is the difference between a DC/DC converter or DC/DC Controller? It seems to be a same voltage converter IC?
  15. K

    Designing 8-bit Binary to BDC Converter

    Designing 8-bit Binary to BCD Converter I have to design and implement an 8-bit binary to BCD converter **using only ICs** I have an algorithm that works just fine in converting an 8-bit binary to BCD that can be sent to three 7-segment displays. It is called the double dabble method. Please...
  16. L

    Magnetizing inductance and Flyback converter

    In the flyback inductor equivalent circuit and also in general, why is magnetizing inductance represented in parallel to the actual inductance? We can have just the Magnetizing inductance in series with the leakage inductance. Also, in flyback converters why does the secondary voltage get...
  17. T

    Can Static Electricity be Converted into Continuous and Useful Levels of Power?

    http://www.nuenergy.org/pdf/static-electricity-converter.pdf
  18. G

    Troubleshooting Flyback Converter Simulation in Multisim

    Hello, I am having the following problem. Basically, I am supposed to create a simulation in multisim for a flyback converter. A basic model, no feedback needed. I have 120 dc power supply, transformer with ratio of 26. Output voltage 5 V and power delivered 35W. All that controlled by mosfet...
  19. F

    How to Calculate Inductance Using a General Impedance Converter?

    http://img146.imageshack.us/img146/9356/capturexh.jpg Attempt at Solution: Well I put R1 and C1 in my RCL circuit, and then used the GIC rules to calculate the "L" inductance for the remainder of the circuit using R2,R3,R4,R5, and C2. So I did X = (Z1*Z3*Z5)/(Z2*Z4) where Z1=R2, Z2...
  20. F

    Buck Converter High-Side Switch

    As a hobbyist I have had an interest in SMPS power supplies for quite some time, but have never gone past casual study of them. I understand the theory, but have difficulty with the actual implementation of things like a high-side switch mechanism for a P-Channel Mosfet. My goal is to...
  21. jegues

    Voltage-to-Current Converter Question

    Homework Statement This is question 2.78 out of Sedra/Smith Micro electronics textbook. (6th edition) Homework Equations The Attempt at a Solution I'm confused as to how the authour of my textbook draws this conclusion in his work. (I have it circled) By the way, in the given...
  22. B

    A batch converter from .fits to .txt.

    I am looking to convert a few thousand .fits files to .txt, I have used fv viewer. This however can only convert one at a time, does anyone know of a batch converter for .fits to .txt. Thank you in advance for your help.
  23. M

    Energy Converter: Find an Online Calculator

    hi all, can some one tell me where can i find an OnLine Energy Converter ? thank you
  24. C

    AC to DC Converter for Electrolysis hobby

    Hello All, I am interested in constructing a small Hofmann apparatus for electrolysis (as a hobby), like this kind: http://en.wikipedia.org/wiki/Hofmann_voltameter" I am confronted with the choice of either using a bunch of 9V batteries, or some kind of AC/DC rectifier. As I am a...
  25. F

    Are There More Advanced PDF to Text Converters for Scanned Images?

    I need a good and advanced PDF to text converter, that can also Scanned JPEG to Text Converter . I found this http://www.ocrcοnvert.com , but I need to know if there are more ??
  26. M

    Solving Compensator Circuit for Synchronous Buck Converter (SBC)

    Hi All, I'm working on my final year project on synchronous buck converter (SBC). In this project, i have to use an adaptive gate drive (AGD) and a compensator to switch on both of the SBC switches. The AGD is connected to the second switch (Low side switch) of the converter meanwhile for the...
  27. Z

    Design a Buck Converter with Low Power Losses

    how to design a buck converter that will have less power losses
  28. P

    MATLAB How Do You Create a Callback Function for a Currency Converter in MATLAB?

    Hi, I'm working on a currency converter and have some trouble trying to understand how to do the callback function. What I have is 2 menus with source and target currency. I also have an edit box to enter the amount. I have to press a convert button and the output is displayed in another text...
  29. T

    High speed sine wave to square wave converter

    Hi guys, I need to convert a sine wave to square wave, sine wave is running at about 1.5 GHz, so I had an idea of using comparator, but I am afraid that most of the conventional op-amps can't support my speed requirement. Any advice and reference circuits please.
  30. N

    PI controller (feed back control) for boost converter

    Hello Everyone, I am trying to put together a PI controller for a boost converter. Vin = 150V Vout = 300V (Require this much boost) Switching Frequency = 25KHz I am attaching a schematic in PSPICE. Please , someone, tell me if the connections are right. Also V-PULSE / SAWTOOTH = (0...
  31. T

    Can an Opamp be Used to Create a Voltage to Voltage Converter?

    Our Transistor is a Voltage to Current converter can we form a Voltage to Voltage converter too physically or not?? can someone help me in this matter pleasez
  32. D

    US/European Power Converter Question

    Hello all! I just moved to Ireland with my U.S. music equipment in tow, and after doing a little googling I'm still having trouble getting the answers I'm looking for. So here goes: I bought a converter which has a transformer in it that is capable of handling 50W, as well as a "solid...
  33. J

    Current Regulation on a DC Buck Converter

    I'm an entry-level engineer, and I have a design question for the forum: I'm designing a multiphase buck DC/DC converter which will convert roughly 65VDC to 52VDC at up to 150A. I'm using 4 phases, so inductors, etc will be designed to about 40A/phase, MOSFETS will be paralleled for less...
  34. B

    Building a Simple 9V Boost Converter for a Spark Plug

    hi, i am pretty new with electronics, and i can't find any simple boost converter circuts on the enternet. i would like to make the circut THE MOST SIMPLE i can, with the fewest possible parts. for a power source, i have 9v-1w. for the output power, i would like to send a thin spark from 1...
  35. B

    Build a Simple Boost Converter Circuit for 9V-1W Power Source

    hi, i am pretty new with electronics, and i can't find any simple boost converter circuts on the enternet. i would like to make the circut THE MOST SIMPLE i can, with the fewest possible parts. for a power source, i have 9v-1w. for the output power, i would like to send a thin spark from 1...
  36. I

    How Can I Amplify PLC's Output Current for Proportional Valve Functionality?

    Hi Guys, I am in bit of a spot here. I do programming for hydraulic presses. If anyone is unfamiliar this entails programming PLCs to automate a press or a machine. The problem I face is that the output current from the PLC is between 4mA - 20mA. I have a proportional valve that needs a...
  37. N

    Powering motor with boost converter?

    Hi. I have a blower motor I am trying to run at 20v from a 12vdc system. At 12v it draws 12A, but I need it to get to a higher RPM. I'm not sure what the surge current is (turning on). Anyway, I was talking to someone else and they didn't think increasing the voltage with a BC would increase the...
  38. N

    Solving RV Power Converter Issues with EE Skills

    Hi. I love it when one's college degree has real world applications :-) It has been 25 years since I got my B.S. in Systems Engineering from USNA. However a detour in the Marine Corps, then 15 years as a remodeling contractor has left my EE skills practically non-existent. I have an RV with...
  39. K

    What's the difference between a buck converter and a voltage regulator?

    Both converts higher DC voltage to lower ones, no? Thanks for answering. =)
  40. F

    How to Make a Buck-Boost Converter with Continuous Current and Open Loop Design

    Homework Statement I have to make a Buck-Boost converter for my Design PE class but the problem is even though i have read about them i seriously don't know where to start. I have to make calculations and choose a mosfet, load, capacitor and an inductor but i don't know how. Homework...
  41. K

    Amplitude based energy to frequency based energy converter

    i need to know if i can convert the high amplitude low frequency based energy to low amplitude high frequency energy based energy in both the case over all power should remain constant.And frequency should be in the range of VHF not in microwave range.
  42. L

    Can the AD 7811 ADC be used for free space transmission?

    Hey all, I am looking for any expert who knows bout the ADC. I am planning to convert my audio analog signal to be digital signal, then i m goin to transmit that digital signal by using LASER DIODE. However, I can't really understand the circuit, how to connect that for transmission. As i...
  43. K

    Forward Converter after PFC

    Hi. I would like to do a dc-dc converter which have output voltage equals to 12V and current is between 1.1A and 100mA. But, the input voltage is around 385V which is the voltage output of the PFC part. Since the voltage into the buck converter is so large, I would like to make a forward...
  44. C

    Measuring Output Power Using Atmel Tiny45 and Boost Converter

    HI, How do i feed the current information into micro-controllers ADC input to calculate the total power? Please help. I am using atmel tiny45 and its a boost converter output current i want to measure for output power. Thanks.
  45. D

    Word to PDF: Convert Wrd to PDF w/ XP, Vista Compat.

    Hi I have a lot of work regarding documents management. I am looking for a word to PDF converter software compatible with Windows XP and Windows Vista as well which can even batch convert files. Please recommend some conversion tool. Any help is appreciated! Thanks!
  46. N

    Ideal op amp (current to voltage converter + inverting)

    Homework Statement Hey there.. need helps here.. The question is.. Derive an expression relating the output voltage, Vo to the input current, Iin. The Attempt at a Solution i try to derive it.. but.. got problem with RL V1 = -IinRf Vo =- R2/R1(-IinRf) how to include Rl in my...
  47. T

    Finding the Right DC/DC Converter for Iowa State SAE

    Hey Everyone, I am working with the Iowa State University SAE and need to find a DC/DC Converter that fits our application. We are running two electromagnetic clutches instead of a traditional differential. So I need to be able to take the regulated 12V DC at 10A from the stator and boost it...
  48. I

    AC Frequency Converter Circuit Diagram

    Can someone give me a circuit diagram i can use to change the frequency of AC current?
  49. S

    Analog to Digital Converter (ADC)

    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...
  50. A

    How to design a boost converter from 5v to 24v

    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:
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