Please Log in or Register for more.

Describe the basic SHA operation with the help of its four mode specifications.

114 views
is it sample and hold amplifier
Yes ............

1 Answer

Answer :

Sample-and-hold amplifier (SHA) is a unity gain amplifier with a mode control switch where the input of the amplifier is connected to a time-varying signal. A trigger pulse at the mode control switch causes it to read the input at the instance of the trigger and maintain that value until the next trigger pulse. Usually the signal is electrical, but other forms, such as optical and mechanical forms, are possible. Also denoted S/H.


Like 0 like

Please log in or register to answer this question.

Related Questions


Explain the basic operation of an oscilloscope with necessary diagram for each section in detail.

Show More

120 views 0 answers







What are the four basic welding positions?

Show More

58 views 0 answers







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 

Show More

883 views 1 answer







Four Quadrant Operation Of DC Motor

Show More

225 views 0 answers







Describe operation of N-channel JFET
Last Answer : Operation of N-channel JFET  1) When VGS = 0 volt: When a voltage is applied between the drain and source with a DC supply voltage VDD with VGS = 0 V, the electrons flow from source ... to zero. The gate to source voltage at which current reduces to zero is called as pinch-off voltage.

Show More

173 views 1 answer







Describe the various blocks and their functions in pipelined ADC architecture.

Show More

85 views 0 answers







State any two advantages of MCB over Fuse. State the standard specifications of MCB available in the market.  
Last Answer : Following advantages of MCB over Fuse: 1. No need of replacement of fuse wire. 2. Manually restore of supply is simple. 3. Fault understanding by visual inspection 4. More safe than fuse The standard specifications of ... 6A, 10A,16A,20A, 25A, 30A, 32A, 40A, 50A, 60A and 63A 6. 250V and 450 v

Show More

193 views 1 answer







Electrical specifications with values for washing machine. 
Last Answer : 1. Type: Top loading / Front loading type 2. Capacity range: 6kg to 15kg 3. Motor Used: Induction motor 4. Input voltage: 100V- 240V 5. Power: in 1200W / Output power 100–400W{can go upto 1000W) 6. Efficiency: Max efficiency 31% 7. Wattage: 2.100-2.400 W 8. Current: 13A 9. Frequency: 50hz

Show More

67 views 1 answer







electrical specifications of microwave oven.
Last Answer : Supply voltage: 220 volts,50 Hz. Single phase A.C. Power consumption: 1300 W approx.(power consumption vary as manufacturer from500W to 1500W) Microwave power: 700 w-850 W Microwave frequency: 2450 ... ) Timer: 60 min. - 90 min(timer can also varied) Control: Soft/one touch control

Show More

101 views 1 answer







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

Show More

176 views 1 answer







operation of DSO with block diagram.
Last Answer : The input is amplified and attenuated with input amplifiers. The output of the input signal amplifiers feeds an analog to digital converter (ADC). There are numbers of ADC available. But the selection of ADC ... view the display on the CRT, the data from memory is reconstructed in analog form.

Show More

235 views 1 answer







operation of ramp type DVM.
Last Answer : This is given to an input comparator which will compare two signals and generates the output. One input to the input comparator is from the input and another input is from the ramp. This input voltage and ... ground and output is given. This output will stop the flow of purchase from clock

Show More

200 views 1 answer







operation of half wave rectifier type AC Voltmeter.
Last Answer :  Half-wave Rectifier Voltmeter The d'Arsonval meter movement only responds to the average or dc value of the current through the moving coil. In order to measure alternating ... ) input voltage signal alternating signal needs to be rectified first by using diode rectifier to produce 

Show More

269 views 1 answer







 operation of whetstone bridge. 
Last Answer : A Wheatstone bridge is widely used to measure the electrical resistance. This circuit is built with two known resistors, one unknown resistor and one variable resistor connected in the form of bridge. ... using a Wheatstone Bridge the unknown electrical resistance value can easily measure.

Show More

100 views 1 answer







The operation of a ramp type Digital Voltmeter is based on the principle of (A) Voltage-to-current conversion. (B) Voltage-to-time conversion. (C) Current-to-time conversion. (D) Current-to-frequency conversion.
Last Answer : The operation of a ramp type Digital Voltmeter is based on the principle of Voltage-to-time conversion.

Show More

133 views 1 answer







Enlist the different modes of operation of electronic counters and explain any two modes in details.

Show More

489 views 0 answers







Mention The Steps In The Interrupt Driven Mode Of Data Transfer.?
Last Answer : Answer :The steps followed in this type of transfer are as follows: The peripheral device would request for an interrupt. The request acknowledgement for the transfer is issued at the end of ... coordinates by the ISS. Again the Interrupt system is enabled and the above steps are repeated.

Show More

6 views 1 answer







Compare characteristics of asynchronous and synchronous transmission mode (four points). 
Last Answer : Synchronous transmission Asynchronous transmission 1. Synchronous transmission are synchronized by an external clock. 1. Asynchronous transmission are synchronized by special signals along the transmission ... for transferring a small amount of data as it is simple and economical.

Show More

81 views 1 answer







A 3-phase voltage source inverter operates in 180° conduction mode with a star connected resistive load. If input dc voltage is 100 V, then the peak to peak output line voltage is :
Last Answer : A 3-phase voltage source inverter operates in 180° conduction mode with a star connected resistive load. If input dc voltage is 100 V, then the peak to peak output line voltage is : 200 V

Show More

205 views 1 answer







The threshold voltage of an n- channel enhancement mode MOSFET is 0.5V when the device is biased at a gate voltage of 3V. Pinch off would be occurs at a drain voltage of (A) 1.5V (B) 2.5V (C) 3.5V (D) 4.5V
Last Answer : The threshold voltage of an n- channel enhancement mode MOSFET is 0.5V when the device is biased at a gate voltage of 3V. Pinch off would be occurs at a drain voltage of 2.5V

Show More

313 views 1 answer







Describe the working principle of Thyristor operated dimmer with the help of circuit diagram.
Last Answer : Thyristor operated dimmer: A popular thyristor operated dimmer circuit employ TRIAC-DIAC phase control for low AC power control. During each half-cycle, the capacitor charges through (R1+VR1). When the ... time constant {C (R1+VR1)}. Thus by reducing VR1 the lamp brightness can be increased.

Show More

368 views 1 answer







With the help of N-channel JFET describe the effect of input voltage VGS on output current ID.
Last Answer : Working of N channel FET: * When a voltage is applied between the drain and source with a DC supply (VDD), the electrons flows from source to drain through narrow channel ... where the channel gets completely blocked and the drain current becomes zero is called pinch- off voltage. 

Show More

224 views 1 answer







What are the disadvantages of the linear regulator? how are they overcome in the switching regulator? What is continuous and discontinuous mode switching regulator?
Last Answer : Disadvantages of the linear regulator: Linear regulator waste power in the form of heat. Linear regulator has very low efficiency. Linear regulator cannot be used for the step ... between continuous mode and discontinuous mode switching regulator.

Show More

105 views 1 answer







How to Find a Four Leaf Clover
Last Answer : How to Find a Four Leaf Clover A four leaf clover is associated with good luck, particularly because it is rare and hard to find. A clover with four leaves is actually considered a genetic defect, ... it! You can learn more about preserving plants and flowers in this article: How to Dry Flowers.

Show More

5 views 1 answer







State any Four lE Rules regarding electric safety. 
Last Answer :  lE Rules regarding electric safety: 1. IE Rule 3 : Authorization 2. IE Rule 29 : Construction and maintenance of electrical supply line and apparatus 3. IE Rule 30: Service line and apparatus on ... 26. IE Rule 60: Test for resistance of insulation 27. IE Rule 61: Connection with earth 

Show More

92 views 1 answer







Explain any four properties of Moulding sand. 
Last Answer : 1. Porosity: Molten metal always contain a certain amount of dissolved gases, which are evolved when the metal freezes the molten metal coming in contact with the moist sand , generates steam or ... to the casting. Refractoriness is measured by the sinter point of the sand rather than its melting

Show More

153 views 1 answer







List any four casting defects.
Last Answer : The various types of casting defects are as follows: 1. Gas Porosity: Blowholes, open holes, pinholes. 2. Shrinkage defects: shrinkage cavity. 3. Mold material defects: Cut and washes, ... Pouring metal defects: Cold shut, misrun, slag inclusion. Metallurgical defects: Hot tears, hot spot.

Show More

110 views 1 answer







List any four materials used for pattern making
Last Answer : The various types of materials used are as follows: 1. Wood 2. Metal. 3. Plastic. 4. Plaster. 5. Wax.

Show More

94 views 1 answer







List any four accessories used on lathe.
Last Answer : The various accessories used in lathe are as follows. 1) Lathe centers 2) Carriers or driving dog 3) catch plates 4) Chucks 5) Face plates 6) Angle plates 7) Mandrels 8) Rests

Show More

85 views 1 answer







State any four advantages of LC filter.
Last Answer : 1. The choke input (LC) filter has a high output D.C voltage. 2. It has no loading effect on the rectifier and power transformer.  3. The diode does not have to carry surge currents.  ... effect on the rectifier and power transformer.  7. It has better voltage regulation than that of π filter.

Show More

453 views 1 answer







what is the difference between four point starter and three point starter?
Last Answer : The shunt connection in four point starter is provided separately form the line where as in three point starter it is connected with line which is the drawback in three point starter.

Show More

118 views 2 answers







How To Make Basic Liquid Gel Soap
Last Answer : 2 cups soap flakes or grated bar soap 1/2 gallon water 2 tbsp glycerin Mix ingredients together in a large pot or dutch oven. Set over low heat, stirring occasionally until the soap has dissolved. Transfer to a jar and cover tightly. For a less thick gel soap, use 1 gallon of water.

Show More

8 views 1 answer







Basic Circuit Elements Symbols
Last Answer : Basic Circuit Elements Symbols

Show More

78 views 1 answer







Numbers Basic Math Review

Show More

38 views 0 answers







Basic Circuit Elements
Last Answer : Resistance ,current,voltage

Show More

86 views 2 answers







Basic idea of generation 
Last Answer : Prior to the discovery of Faraday's Laws of electromagnetic discussion, electrical power was available from batteries with limited voltage and current levels. Although complicated in construction, D ... Therefore, area specific generating stations along with its distribution networks had to be used.

Show More

2.4k views 1 answer







What are the basic requirements of locating wind power plant ?
Last Answer : The basic requirements of locating wind power plant:  1) The site should be selected where winds are strong i.e. where pressure of wind is high and there is continuity. 2) Wind pressure ... the turbine which can affect the system's overall performance. 10)Possibility to connect to power grid. 

Show More

136 views 1 answer







Basic SI units
Last Answer : Basic SI units

Show More

80 views 1 answer







1.Determine the permeability of magnetic material by plotting its BH curve 2. Measure voltage, current and power in 1-phase circuit with resistive load. 3. Measure voltage, current and ... .Make Star and Delta connection in induction motor starters and measure the line and phase values.
Last Answer : Practical no. 6 Aim: Make Star and Delta connection in induction motor starters and measure the line and phase values. Apparatus required:  voltmeter, ammeter, induction motor Circuit diagram ... Result: Hence we have measured the line and phase value of star and delta connection.

Show More

2.9k views 6 answers








Last Answer : In a circuit breaker the basic problem is to transmit large power.

Show More

121 views 1 answer







What is the basic use of capacitor?

Show More

67 views 0 answers







What is the basic function of a capacitor?

Show More

68 views 0 answers







What are the basic laws of physics?

Show More

80 views 0 answers







What is basic insulation level?

Show More

74 views 0 answers







basic gate drive circuit of GTO
Last Answer : basic gate drive circuit of GTO

Show More

896 views 1 answer







What is one of the craziest things you've ever tried to describe or explain to someone?
Last Answer : Trump’s election.

Show More

1 view 1 answer







Describe with neat sketch working of hysteresis motor.
Last Answer : Working: When stator is energized with single phase ac supply, rotating magnetic field is produced because of starting (auxiliary) and main windings, which remain in circuit permanently. The ... the principle of magnetic locking this motor either rotates at synchronous speed or not at all.

Show More

203 views 1 answer







State the various lighting calculations methods and Describe any one of them.
Last Answer : Lighting calculation methods: 1. Lumens or Light flux method 2. Point to point or Inverse Square law method 3. Watts per Square meter method i) Lumens or Light ... is taken according to the illumination desired on an average value considering overall efficiency of the lighting system.

Show More

226 views 1 answer







Describe strain gauge with labelled diagram.
Last Answer : A Strain gauge is a sensor whose resistance varies with applied force. It converts force, pressure, tension, weight, etc., into a change in electrical resistance which can then be measured. When external ... to the applied strain. So, the voltmeter can be calibrated in terms of strain or force. 

Show More

173 views 1 answer







Describe the concept of virtual ground with reference to op-Amp.
Last Answer : Virtual ground concept:-In circuit point A is virtual ground. Figure shows inverting amplifier using op-amp. In this circuit non-inverting terminal is connected to the actual ground. Due to ... zero potential without actually grounding is known as virtual ground concept. Circuit diagram: 

Show More

184 views 2 answers






Show More⇦ PreviousNext ⇨