What are the advantages of IC voltage regulators?

What are the advantages of IC voltage regulators?
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1 Answer

Answer :

*low cost

*high reliability

*reduction in size

*excellent performance
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Related questions

Give some examples of monolithic IC voltage regulators

Description : Give some examples of monolithic IC voltage regulators

Last Answer : 78XX series fixed output, positive voltage regulators 79XX series fixed output, negative voltage regulators 723 general purpose regulator.

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 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 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

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

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 .

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.

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. 

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

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 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.

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.

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.

Give the advantages of IC?

Description : Give the advantages of IC?

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what are different three main IC Technologies? discuss the advantages of each of them.

Description : what are different three main IC Technologies? discuss the advantages of each of them.

Last Answer : The three different IC technologies are 1.Full custom VLSI2.Semi-custom ASIC3.Programmable Logic Devices (PLD)The advantages of each of them are as follows :1. Full custom VLSIAll ... Logic devices are available instantly.In PLD there is not customised logic cell or mask layer.

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.

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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

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The first stage of a two-stage amplifier has a voltage gain of 10, a 600 Ω input resistor, a 1600Ω equivalent noise resistance and 27kΩ output resistor. For the second stage, these values are 25, 81kΩ, 19kΩ, and 1MΩ, respectively. Calculate the equivalent input-noise resistance of this two stage amplifier. A. 2,518 kΩ B. 2,518 Ω C. 251.8 Ω D. 12,518 Ω

Description : The first stage of a two-stage amplifier has a voltage gain of 10, a 600 Ω input resistor, a 1600Ω equivalent noise resistance and 27kΩ output resistor. For the second stage, these values are 25, 81kΩ, 19kΩ, and 1MΩ, ... this two stage amplifier. A. 2,518 kΩ B. 2,518 Ω C. 251.8 Ω D. 12,518 Ω

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Description : An amplifier operating over the frequency range of 455 to 460 kHz has a 200 kΩ input resistor. What is the RMS noise voltage at the input to this amplifier if the ambient temperature is 17˚C ? A. 40 µV B. 4.0 µV C. 400 µV

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