Give some examples of monolithic IC voltage regulators

Give some examples of monolithic IC voltage regulators
by

1 Answer

Answer :

78XX series fixed output, positive voltage regulators

79XX series fixed output, negative voltage regulators

723 general purpose regulator.


by

Related questions

What is the advantage of monolithic switching regulators?

Description : What is the advantage of monolithic switching regulators?

Last Answer : *Greater efficiency is achieved as the power transistor is made to operate as low impedance switch.Power transmitted across the transistor is in discrete pulses rather than as a steady current flow. * ... frequency can be increased so as to reduce the size and weight of the inductors and capacitors

What are the advantages of IC voltage regulators?

Description : What are the advantages of IC voltage regulators?

Last Answer : *low cost *high reliability *reduction in size *excellent performance

What is the use of buried n+ layer in monolithic IC transistor?

Description : What is the use of buried n+ layer in monolithic IC transistor?

Last Answer : The buried n+ layer provides a low resistance path in the active collector region for the flow of current

What is the purpose of having input and output capacitors in three terminal IC regulators?

Description : What is the purpose of having input and output capacitors in three terminal IC regulators?

Last Answer : A capacitor connected between the input terminal and ground cancels the inductive effects due to long distribution leads. The output capacitor improves the transient response.

Give the classification of voltage regulators

Description : Give the classification of voltage regulators

Last Answer : *Series / Linear regulators  *Switching regulators.

What is a compander IC? Give some examples.

Description : What is a compander IC? Give some examples.

Last Answer : The term companding means compressing and expanding.In a communication system, the audio signal is compressed in the transmitter and expanded in the receiver. Examples : LM 2704- LM 2707 ; NE 570/571.

How do the two types of monolithic IC construction differ?

Description : How do the two types of monolithic IC construction differ?

Last Answer : Diffusion penetrates substrate; epitaxial does not

Name the two types of monolithic IC construction discussed.

Description : Name the two types of monolithic IC construction discussed.

Last Answer : Diffusion; epitaxial growth

Give the drawbacks of linear regulators:

Description : Give the drawbacks of linear regulators:

Last Answer : *The input step down transformer is bulky and expensive because of low line frequency.  *Because of low line frequency,large values of filter capacitors are required to decrease the ripple.  * ... reduced due to the continous power dissipation by the transistor as it operates in the linear region

Motors, switches, voltage regulators, generators, etc., are a few examples of emi sources. What type of emi comes from these sources?

Description : Motors, switches, voltage regulators, generators, etc., are a few examples of emi sources. What type of emi comes from these sources?

Last Answer : Man-made.

What is an opto-coupler IC?

Description : What is an opto-coupler IC?

Last Answer : Opto-coupler IC is a combined package of a photo-emitting device and a photosensing device.Examples for opto-coupler circuit : LED and a photo diode, LED and photo transistor, LED and Darlington. Examples for opto-coupler IC : MCT 2F , MCT 2E .

Why IC 741 is not used for high frequency applications?

Description : Why IC 741 is not used for high frequency applications?

Last Answer : IC741 has a low slew rate because of the predominance of capacitance present in the circuit at higher frequencies. As frequency increases the output gets distorted due to limited slew rate. 

The division of the reactive KVA load between paralleled AC generators is initiated by the ______________. A. prime mover governors B. voltage regulators C. phase balance relay D. proportioner

Description : The division of the reactive KVA load between paralleled AC generators is initiated by the ______________. A. prime mover governors B. voltage regulators C. phase balance relay D. proportioner

Last Answer : Answer: B

Equalization of the power factors of two alternators operating in parallel is accomplished _____________. A. manually, by adjusting the governor controls B. automatically, by automatic voltage regulators C. manually, adjusting the output of current transformers D. automatically, by the designed action of the governors

Description : Equalization of the power factors of two alternators operating in parallel is accomplished _____________. A. manually, by adjusting the governor controls B. automatically, by automatic voltage regulators ... the output of current transformers D. automatically, by the designed action of the governors

Last Answer : Answer: B

The kilowatt load can be adjusted on a paralleled generator by using the _____________. A. field rheostat B. governor control C. automatic voltage regulators D. hand tachometer

Description : The kilowatt load can be adjusted on a paralleled generator by using the _____________. A. field rheostat B. governor control C. automatic voltage regulators D. hand tachometer

Last Answer : Answer: B

Automatic voltage regulators provided on switchboards function to _____________. A. regulate the AC load on the generator B. protect the switchboard from high voltage C. govern prime mover speed to control voltage D. vary the field excitation to the generators

Description : Automatic voltage regulators provided on switchboards function to _____________. A. regulate the AC load on the generator B. protect the switchboard from high voltage C. govern prime mover speed to control voltage D. vary the field excitation to the generators

Last Answer : Answer: D

Which is a function of the voltage regulators used with AC generators? A. To cut out generators when they are no longer required. B. To cut in additional generators automatically as required. C. To divide the KW load equally between generators operating in parallel. D. To divide reactive current between generators operating in parallel.

Description : Which is a function of the voltage regulators used with AC generators? A. To cut out generators when they are no longer required. B. To cut in additional generators automatically as ... between generators operating in parallel. D. To divide reactive current between generators operating in parallel.

Last Answer : Answer: D

The division of the kilowatt load between two AC generators operating in parallel is controlled by the settings and characteristics of the _____________. A. voltage regulators B. field rheostats C. reverse power relays D. prime mover governors

Description : The division of the kilowatt load between two AC generators operating in parallel is controlled by the settings and characteristics of the _____________. A. voltage regulators B. field rheostats C. reverse power relays D. prime mover governors

Last Answer : Answer: D

On AC vessels, which of the following statements represents the most difficult problem involved in obtaining a DC potential suitable for use by computer components? A. A stepdown transformer is always required. B. Vessel vibrations affect the voltage source. C. The voltage must be rectified and made ripple free. D. Rectifiers cannot operate with voltage regulators.

Description : On AC vessels, which of the following statements represents the most difficult problem involved in obtaining a DC potential suitable for use by computer components? A. A stepdown transformer is ... voltage must be rectified and made ripple free. D. Rectifiers cannot operate with voltage regulators.

Last Answer : Answer: C

What are the advantages of sequence control of ac voltage regulators?

Description : What are the advantages of sequence control of ac voltage regulators?

Last Answer : a. System power factor is improved. b. Harmonics are reduced in the source current and the load voltage.

What is meant by sequence control of ac voltage regulators?

Description : What is meant by sequence control of ac voltage regulators?

Last Answer : It means that the stages of voltage controllers in parallel triggered in a proper sequence one after the other so as to obtain a variable output with low harmonic content.

Cold-cathode tubes can be used as voltage regulators because of what characteristic?

Description : Cold-cathode tubes can be used as voltage regulators because of what characteristic?

Last Answer : They have the ability to maintain a constant voltage drop across the tube despite changes in current flow.

The two basic types of voltage regulators are ___ and ___

Description : The two basic types of voltage regulators are ___ and ___

Last Answer : Series and shunt.

The two basic types of voltage regulators are _______ and _______.

Description : The two basic types of voltage regulators are _______ and _______.

Last Answer : Series and shunt.

Electro-mechanical voltage regulators are generally used in (a) reactors (b) generators (c) transformers (d) all of the above

Description : Electro-mechanical voltage regulators are generally used in (a) reactors (b) generators (c) transformers (d) all of the above

Last Answer : (b) generators

Compare the fixed voltage regulators using 78XX and 79XX.

Description : Compare the fixed voltage regulators using 78XX and 79XX.

Last Answer : Compare the fixed voltage regulators using 78XX and 79XX.

Which is a stronger/stabler structure: A pyramid or a monolithic dome?

Description : Which is a stronger/stabler structure: A pyramid or a monolithic dome?

Last Answer : The dome. Sharp edges and corners are the first thing to erode.

10. What do you know about the monolithic temples at Mahabalipuram? -Social Science

Description : 10. What do you know about the monolithic temples at Mahabalipuram? -Social Science

Last Answer : The monolithic temples of Mahabalipuram were very beautiful. Each of these temples was carved out of a huge, single piece of stone. It is therefore they are known as monoliths. The Durga temple at Aihole was built about 1400 years ago.

Where has the world’s largest monolithic statue of Buddha been installed? -Do You Know?

Description : Where has the world’s largest monolithic statue of Buddha been installed? -Do You Know?

Last Answer : answer:

Where has the world’s largest monolithic statue of Buddha been installed?

Description : Where has the world’s largest monolithic statue of Buddha been installed?

Last Answer : Bamiyan

The advantage of reinforced concrete, is due to (A) Monolithic character (B) Fire-resisting and durability (C) Economy because of less maintenance cost (D) All the abov

Description : The advantage of reinforced concrete, is due to (A) Monolithic character (B) Fire-resisting and durability (C) Economy because of less maintenance cost (D) All the abov

Last Answer : Answer: Option D

The highly polished monolithic Ashokan Pillars were carved out of single pieces of a buff-coloured sandstone, usually mined from the quarries of?

Description : The highly polished monolithic Ashokan Pillars were carved out of single pieces of a buff-coloured sandstone, usually mined from the quarries of?

Last Answer : Chunar near Mirzapur

How do monolithic ICs differ from film ICs?

Description : How do monolithic ICs differ from film ICs?

Last Answer : Monolithic ICs contain active and passive elements. Film ICs contain only passive elements

A .................... architecture assigns only a few essential functions to the kernel, including address spaces, Inter process communication(IPC) and basic scheduling. A) Monolithic kernel B) Micro kernel C) Macro kernel D) Mini kernel

Description : A .................... architecture assigns only a few essential functions to the kernel, including address spaces, Inter process communication(IPC) and basic scheduling. A) Monolithic kernel B) Micro kernel C) Macro kernel D) Mini kernel

Last Answer : B) Micro kernel

........... is a large kernel, including scheduling file system, networking, device drivers, memory management and more. A) Monolithic kernel B) Micro kernel C) Macro kernel D) Mini kernel

Description : ........... is a large kernel, including scheduling file system, networking, device drivers, memory management and more. A) Monolithic kernel B) Micro kernel C) Macro kernel D) Mini kernel

Last Answer : A) Monolithic kernel

............... is a large operating system core provides a wide range of services. A) Multilithic kernel B) Monolithic kernel C) Micro kernel D) Macro kernel

Description : ............... is a large operating system core provides a wide range of services. A) Multilithic kernel B) Monolithic kernel C) Micro kernel D) Macro kernel

Last Answer : D) Macro kernel

........... is a large kernel containing virtually the complete operating system, including, scheduling, file system, device drivers and memory management. A) Multilithic kernel B) Monolithic kernel C) Micro kernel D) Macro kernel

Description : ........... is a large kernel containing virtually the complete operating system, including, scheduling, file system, device drivers and memory management. A) Multilithic kernel B) Monolithic kernel C) Micro kernel D) Macro kernel

Last Answer : B) Monolithic kernel

Why are monolithic houses so attractive?

Description : Why are monolithic houses so attractive?

Last Answer : Why are monolithic houses so attractive? Monolithic structures are a fairly young and new type of construction, which, however, is very quickly conquering the modern real estate ... Thus, there are many reasons to purchase monolithic housing: cheapness, environmental friendliness, durability.

1. Which Act gave representation to Indians for the first time in the Legislature? 2. By which can the location and energy of an electron in an atom be specified? 3. What was the decentralisation system recommended? 4. Which is softwood from coniferous forest? 5. Where has the world’s largest monolithic statue of Buddha been installed?

Description : 1. Which Act gave representation to Indians for the first time in the Legislature? 2. By which can the location and energy of an electron in an atom be specified? 3. What was the ... set of mansoon & are harvested in September-October? 20. Which philosophical system was founded by Vallabhacharya?

Last Answer : Answer : 1. Government of India Act, 1935 2. Quantum numbers 3. Balwant Rai Mehta 4. Pine 5. Bamiyan 6. Mother Teresa 7. Number of WBCs increases in blood 8. Prime Minister 9. Equatorial ... -bin-Tughlaq 16. By combining various foods 17. Constitution of India 18. Xenon 19. Kharif 20. Suddhadvaita

What is the correct sequence of the following step in the fabrication of a monolithic, bipolar junction

Description : What is the correct sequence of the following step in the fabrication of a monolithic, bipolar junction transistor? 1. Emitter diffusion 2. Base diffusion 3. Buried layer formation 4. Epi-layer formation Select the correct answer using the codes given ... 2) 4, 3, 1, 2 (3) 3, 4, 2, 1 (4) 4, 3, 2, 1 

Last Answer : What is the correct sequence of the following step in the fabrication of a monolithic, bipolar junction transistor? 1. Emitter diffusion 2. Base diffusion 3. Buried layer formation 4. Epi-layer formation Select the correct answer using the codes ... ) 4, 3, 1, 2 (3) 3, 4, 2, 1 (4) 4, 3, 2, 1 

What is voltage voltage regulator IC ?

Description : What is voltage voltage regulator IC ?

Last Answer : : All the ICs that are used to regulate or control the voltage are called voltage regulator ICs. The function of the voltage regulator IC is to regulate the voltage. E.g. IC 7805.

Sketch pin configuration of IC 723. State functions of each pin. Sketch circuit diagram for obtaining 6V output d.c. regulated voltage using IC 723.

Description : Sketch pin configuration of IC 723. State functions of each pin. Sketch circuit diagram for obtaining 6V output d.c. regulated voltage using IC 723.

Last Answer : 1) Pin configuration of IC 723 :  2) Functions of each pin:-  V+ and V-: These are the supply voltage terminals of the IC. V+ is the positive terminal and V- is the negative terminal.  Non ... Expression Vout = Vref * (R2 / R1+R2)  Assume any value of R2, R1 can be calculated. 

Mention the types of growth regulators and give example.

Description : Mention the types of growth regulators and give example.

Last Answer : a) Plant growth promoters ex: Auxins, Gibberellins, cytokinins b) Plant growth inhibitors ex: Abscisic acid, Ethylene

Give reason: Phytohormones are also called growth regulators.

Description : Give reason: Phytohormones are also called growth regulators.

Last Answer : Phytohormones are organic compounds which regulate plant growth and development in plants. Hence they are called growth regulators also.

RS-232, RS-449, RS-530, V, 24 and X.21 are examples of ____________. A. standards for interfaces between modems and transmission facilities B. standards for various types of transmission channels C. standards for interfaces between terminals and modems D. standards for end to end performance of data communications system

Description : RS-232, RS-449, RS-530, V, 24 and X.21 are examples of ____________. A. standards for interfaces between modems and transmission facilities B. standards for various types of ... for interfaces between terminals and modems D. standards for end to end performance of data communications system

Last Answer : C. standards for interfaces between terminals and modems

Cable attenuation is usually expressed in terms of a. Loss per foot b. dB/km c. intensity per mile d. voltage drop per inch

Description : Cable attenuation is usually expressed in terms of a. Loss per foot b. dB/km c. intensity per mile d. voltage drop per inch

Last Answer : b. dB/km

Photodiodes used as fiber optic directors are a. Unbiased to generate a voltage same as a solar cell b. Forward bias c. Reversed bias d. Thermoelectrically cooled

Description : Photodiodes used as fiber optic directors are a. Unbiased to generate a voltage same as a solar cell b. Forward bias c. Reversed bias d. Thermoelectrically cooled

Last Answer : c. Reversed bias

For a shortened vertical antenna, where should a loading coil be placed to minimize losses and produce the most effective performance? A. As low as possible on the vertical radiator B. Near the center of the vertical radiator C. As close to the transmitter as possible D. At a voltage node

Description : For a shortened vertical antenna, where should a loading coil be placed to minimize losses and produce the most effective performance? A. As low as possible on the vertical radiator B. Near the center of the vertical radiator C. As close to the transmitter as possible D. At a voltage node

Last Answer : B. Near the center of the vertical radiator

Where are the voltage nodes in a half-wave antenna? A. At the ends B. Three-quarters of the way from the feed point toward the end C. One-half of the way from the feed point toward the end D. At the feed point

Description : Where are the voltage nodes in a half-wave antenna? A. At the ends B. Three-quarters of the way from the feed point toward the end C. One-half of the way from the feed point toward the end D. At the feed point

Last Answer : D. At the feed point

A final amplifier of a radio transmitter draws 250 mA of plate current when the plate supply voltage is 1400 volts. If the plate circuit efficiency is 80% and the transmitter is connected to an antenna having a feed impedance of 70 ohms, what is the antenna current at the feed-point? A. 4.0 A B. 2.2 A C. 1.25 A D. 2.0 A

Description : A final amplifier of a radio transmitter draws 250 mA of plate current when the plate supply voltage is 1400 volts. If the plate circuit efficiency is 80% and the transmitter is connected to an antenna having a feed impedance of 70 ohms, ... at the feed-point? A. 4.0 A B. 2.2 A C. 1.25 A D. 2.0 A

Last Answer : D. 2.0 A