A four -quadrant operation requires two full converters connected in (1) Series (3) Back to back (2) Parallel (4) Series Cascade
Last Answer : A four-quadrant operation requires two full converters connected in Parallel
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asked
Apr 30, 2018
by
anonymous
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What is the need of data converters? List specifications of DAC.
Last Answer : Need of data converters: It is often necessary that before processing the analog data, by a digital system, it should be changed to an equivalent digital form. Similarly, after processing the data, it ... 4. Temperature sensitivity 5. Settling time 6. Speed 7. Long term Drift 8. Supply rejection
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176 views
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asked
Jul 31, 2019
by
anonymous

In a 5 bit weighted resistor D/A converters, the resistor value corresponding to LSB is 40 kΩ, and the resistor value corresponding to MSB will be (A) 0.4 kΩ (B) 3 kΩ (C) 2.8 kΩ (D) 2.5 kΩ
Last Answer : In a 5 bit weighted resistor D/A converters, the resistor value corresponding to LSB is 40 kΩ, and the resistor value corresponding to MSB will be 2.5 kΩ
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105 views
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asked
Apr 28, 2018
by
anonymous

Why would HD Access DTA 1030D stop working after a few hours?
Last Answer : I edited the title, (it was wouldn’t)
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1 answer
asked
Feb 27
by
anonymous

With the help of a neat circuit diagram explain the working principle of Digital to Analog converters.(DAC)
Last Answer : Digital-to-Analog Converters: D/A conversion is the process of converting a value represented in digital code such as binary or BCD into a voltage or current which is proportional ... total of input voltage levels which represents the equivalent analog signals of the 4-bit digital input.
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314 views
1 answer
asked
Sep 13, 2018
by
anonymous

Are there any free codec movie converters?
Last Answer : Mpeg Streamclip. All kinds of awesome, and it’s free. Get it here
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1 answer
asked
Feb 27
by
anonymous
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Are those VHS to USB converters worth it?
Last Answer : I am doing it right now! Mine was – the only issue is that about half the time you run up against copyright protection. But I’m getting good, solid returns on my VHS conversions.
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1 answer
asked
Feb 27
by
anonymous

Are there any free video converters for mac?
Last Answer : answer:Handbrake http://handbrake.fr/ Best DVD-Ripping Tool: Handbrake http://lifehacker.com/5446090/best-dvd+ripping-tool-handbrake
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1 answer
asked
Feb 27
by
anonymous

I need to convert an mp4 video file to be playable on an iPod, but all converters I've tried don't work.
Last Answer : Have you tried HandBrake yet? It’s always worked for me.
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0 views
1 answer
asked
Feb 27
by
anonymous

Is the change to digital tv and the use of the digital converters international? or just the USA?
Last Answer : Just the United States. If you have cable you are set. The only people that need to worry are folks with rabbit ears.
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asked
Feb 14
by
anonymous

Which is the Best Spotify to MP3 Converters?
Last Answer : When it comes to Spotify music converters on the market, there are plenty of Spotify music converters. I want to recommend that TunesKit Spotify Music Converter to you. TunesKit Spotify Music ... Spotify and download Spotify music to common audio formats without any limitations. Just have a try.
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1 answer
asked
Feb 1
by
anonymous

What are rotary phase converters? How they are helpful?
Last Answer : These are actually phase convertors which convert phases in order to provide electrical and magnetic effects required.It's helpful in motors we use
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1 answer
asked
Jan 23
by
anonymous

Catalytic converters are fitted in to automobiles for reducing emission of poisonous gases, having expensive metals namely.
Last Answer : Catalytic converters are fitted in to automobiles for reducing emission of poisonous gases, having ... Lead and Cadmium D. copper and cadmium
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Do you have to replace both converters on a Jeep Liberty?
Last Answer : What is the answer ?
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A Handy Buyer’s Guide To Voltage Converters For Travelers?
Last Answer : As you already may be aware, the standard voltage used in powerdistribution networks and mains power supplies vary from country tocountry. Both for practical and historical reasons, the voltageused for charging and ... of the world is between 100 to 120Volts operating at 60 Hertz, and 210 to 240
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Can I use vhs converters to transfer movies from my old vhs tapes to my computer?
Last Answer : You can use VHS converters to transfer movies from your old VHS tapes to your home PC. This makes you able to get rid of your stack of VHS tapes and backup everything digitally.
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1 answer

Which brand of power converters are the best to purchase?
Last Answer : Electricalpowertransformer.com has an answer for you. They say "No matter what your power transformer needs are we can help you select the very best brand and model power Transformers. We have a ... best power transformer products from leading brands such as TEMCo, Marcus, Hammond, GE and Acme."
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Are there any free online PDF converters?
Last Answer : There are many online shops that sell PDF converter software. Amazon.com is one of online shop that sells PDF converter software with any kind of platforms and you can get a free guide. You can visit www.amazon.com
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1 answer

Sulphur dioxide level in the atmosphere can be reduced by using - (1) more efficient car engines (2) catalytic converters in industry (3) static electricity to attract it in factory chimneys (4) low - sulphur fuels
Last Answer : (4) low - sulphur fuels Explanation: The main source of sulphur dioxide into the atmosphere is from the burning of fossil fuels. Sulphur dioxide can damage plants and reduce crop yields.
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Catalytic converters are generally made from (1) Alkaline metals (2) Hydrogen (3) Transition metals (4) Carbon
Last Answer : (3) Transition metals Explanation: Transition metals are used directly as catalysts in the anti-pollution catalytic converters in car exhausts. For example, expensive transition metals such as ... nitrogen monoxide, which are converted to the non-polluting gases nitrogen and carbon dioxide.
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As shown in the illustration, when the 'speed control' system is in 'SPLIT' _______________. EL-0096 A. Relays #1, #5 and #8 are not used B. the 'slew rated controller' is grounded through Relay ... E/P converters' are bypassed and air is fed directly to the governors via the 'load sharing valve'
Last Answer : Answer: C
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Catalytic Converters are Generally Made from –
Last Answer : Transition Metals
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1 answer
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What is meant by step-down cyclo-converters?
Last Answer : In these converters, the output frequency is more than the supply frequency.
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What is meant by step-up cyclo-converters?
Last Answer : In these converters, the output frequency is less than the supply frequency.
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What are the two types of cyclo-converters?
Last Answer : a. Step-up cyclo-converters b. Step-down cyclo-converters
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1 answer

What are the types of cyclo-converters?
Last Answer : Step up cyclo-converter Step down cyclo-converter.
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List out the uses of sigma delta A/D converters.
Last Answer : • High resolution • Moderate speech applications such as digital audio, digital telephony
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List out some integrating type converters.
Last Answer : 1. Charge balancing ADC 2. Dual slope ADC
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1 answer

Catalytic Converters are Generally Made from
Last Answer : Transition Metals
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1 answer

What limits the usefulness of high-gain, tunnel-diode frequency converters?
Last Answer : Stability problems.
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1 answer
asked
Aug 19, 2021
by
anonymous

An IC that contains A/D and D/A converters, companders, and parallel-to-serial converters is called
Last Answer : . Codec
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1 answer
asked
Aug 15, 2021
by
anonymous

In successive-approximation A/D converter, offset voltage equal to 1/2 LSB is added to the D/A converter's output. This is done to (A) Improve the speed of operation. (B) Reduce the maximum ... Increase the number of bits at the output. (D) Increase the range of input voltage that can be converted
Last Answer : (B) Reduce the maximum quantization error.
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1 answer

Data can be changed from special code to temporal code by using (A) Shift registers (B) counters (C) Combinational circuits (D) A/D converters.
Last Answer : Ans: A Data can be changed from special code to temporal code by using Shift Registers. (A Register in which data gets shifted towards left or right when clock pulses are applied is known as a Shift Register.)
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10. Catalytic converters are fitted into automobiles to reduce emission of harmful gases. Catalytic converters change un burnt hydrocarbons into (a) carbon dioxide and water (b) carbon mono oxide (c) methane (d) carbon dioxide and methane.
Last Answer : (a) carbon dioxide and water
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4 views
1 answer
asked
Jul 19, 2021
by
anonymous
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Wutomobile catalytic converters cause the carbon monoxide and hydrocarbons which result from incomplete combustion to be converted into what two substances?
Last Answer : ANSWER: CARBON DIOXIDE (CO2) AND WATER (H2O)
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17 views
1 answer
asked
Mar 6, 2021
by
anonymous

Catalytic converters are generally made from : (1) Alkaline metals (2) Hydrogen (3) Transition metals (4) Carbon
Last Answer : Transition metals
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37 views
1 answer
asked
Jan 23, 2021
by
anonymous
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Sulphur dioxide level in the atmosphere can be reduced by using (1) more efficient car engines (2) catalytic converters in industry (3) static electricity to attract it in factory chimneys (4) low - sulphur fuels
Last Answer : low - sulphur fuels
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28 views
1 answer
asked
Jan 23, 2021
by
anonymous

Last Answer : Dual slope integration type analog to digital converter provide Very good accuracy without putting extreme requirements on component stability and Good rejection of power supply hum
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84 views
1 answer
asked
Mar 31, 2018
by
anonymous
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For a class D commutation, answer the following: i) Explain the operation with circuit diagram. ii) Interpret with waveforms.
Last Answer : Class D commutation: This is also called as auxiliary commutation because it uses an auxiliary SCR to switch the charged capacitor across conducting SCR to turn it off. In this scheme, the main ... make SCR1 forward biased and keep ready for next triggering. The above cyclic process is repeated.
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1 answer
asked
May 21, 2020
by
anonymous

With neat sketch explain four modes of operation of a TRIAC?
Last Answer : Modes of operation of a TRIAC: There are four different operating modes of TRIAC: 1) MT2 and gate are positive with respect to terminal MT1(Mode1) : Here terminal MT2 is positive ... junction P2-N2 is forward biased, current carriers are injected and therefore, the TRIAC is turned on.
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442 views
1 answer
asked
May 21, 2020
by
anonymous

Explain triggering of SCR using opto-coupler. State its advantages.
Last Answer : Triggering of SCR using opto-coupler: A simple opto-coupler based triggering circuit for SCR is shown in the figure. An optocoupler or opto-isolator is a combination of light source ... is small size and light weight device. iii)Interfacing with logic circuits is easily possible.
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327 views
1 answer
asked
May 21, 2020
by
anonymous

Draw the circuit diagram of battery charger using SCR and explain it’s working.
Last Answer : Battery charger circuit using SCR: The figure shows the battery charger circuit using SCR. A 12V discharged battery is connected in the circuit and switch SW is closed. The singlephase 230V ... not fired. In this way, after full charging, further charging is automatically stopped.
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537 views
1 answer
asked
May 21, 2020
by
anonymous

Explain the thermal triggering method of SCR. Enlist different triggering methods of SCR.
Last Answer : Types of Triggering: 1) Forward voltage triggering 2) Thermal triggering (Temperature triggering) 3) Radiation triggering (Light triggering) 4) dv/dt triggering 5) Gate triggering ... generated leakage current increases. This current gets multiplied internally and thyristor is turned on.
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220 views
1 answer
asked
May 21, 2020
by
anonymous
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Explain working of static AC circuit breaker.
Last Answer : Static AC Circuit breaker: The circuit configuration of static AC circuit breaker using SCR is shown in the figure. When switch S' is closed, the SCRs T1 and T2 are fired in positive ... non-availability of gate current. Thus the maximum time delay for breaking the circuit is one half-cycle.
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209 views
1 answer
asked
May 21, 2020
by
anonymous

With neat diagram explain synchronized UJT triggering circuit.
Last Answer : Line Synchronized UJT triggering circuit: The UJT is almost ideal as a firing device for SCRs. There are 2 main reasons for the compatibility between UJTs and SCRs. Firstly, the UJT produces a ... , the SCR is sure to have the right polarity between the anode and cathode for turning on.
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567 views
1 answer
asked
May 21, 2020
by
anonymous

Explain working of AC circuit breaker using SCR with circuit diagram.
Last Answer : AC Circuit Breaker: The circuit configuration of static AC circuit breaker using SCR is shown in the figure. When switch S' is closed, the SCRs T1 and T2 are fired in positive ... to non-availability of gate current. Thus the maximum time delay for breaking the circuit is one half-cycle.
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937 views
1 answer
asked
Oct 13, 2019
by
anonymous

With neat circuit diagram explain working of emergency light system.
Last Answer : Emergency lighting system: In the residential, commercial and industrial areas, the illumination system work with available AC supply. In the event of AC supply failure, partial illumination can be ... glows. In rthis way, on failure of AC supply, light is obtained from DC supply.
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218 views
1 answer
asked
Oct 13, 2019
by
anonymous

Draw a symbol and neat labeling V-I characteristics of GTO and explain its operation.
Last Answer : Ans: Symbol and V-I characteristics of GTO: Operation of GTO: i) As the applied anode to cathode voltage is increased above zero, very small current (leakage current) flows through the device. ... low voltage (VBRR). The reverse breakdown voltage is of the order of 20 to 30 volt only.
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568 views
1 answer
asked
Jul 25, 2019
by
anonymous

Explain auxiliary commutation with a neat diagram. Also draw its waveform.
Last Answer : Auxiliary Commutation At start, the Ta is triggered and turned on to carry the load current. Due to the resonant circuit R-L-C, the current initially rises, attains peak and then falls to ... , the firing of auxiliary SCR commutates the main SCR, hence name is auxiliary commutation.
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267 views
1 answer
asked
Jul 25, 2019
by
anonymous

Explain in detail over-voltage protection.
Last Answer : Over-voltage protection: Over-voltage protection to the thyristor is provided using: i) R-C Snubber circuit ii) Non-linear resistor Thyrector A) Snubber Circuit: It is basically a ... returns to its high resistance state. Thyrector is normally placed across the supply terminals.
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2.6k views
1 answer
asked
Jul 25, 2019
by
anonymous
