What is Sample and hold circuit ?

by

1 Answer

Answer :

Sample and hold circuit is the important part of data converters (ADC and DAC). Sample and hold circuit is also called as track-and-hold circuit. Sample and hold circuit is use for sampling of analogue signals and storing its value for some time. Sample and hold circuit basically uses an analogue switch (like JFET) and capacitor.

by

Related questions

Define Sample and hold period with reference to S/H circuit.

Description : Define Sample and hold period with reference to S/H circuit.

Last Answer : Sample Period:- The time period during which the voltage across the capacitor is equal to the input voltage is called sample period. Hold Period:- The time period during which the voltage across the capacitor is constant is called hold period.

Magnetic Circuit and its Analysis

Description : Magnetic Circuit and its Analysis

Last Answer : .embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }

Describe the difference between an open circuit and a short circuit.

Description : Describe the difference between an open circuit and a short circuit.

Last Answer : Open circuit means the wire is cut meaning power will not flow and close circuit means wire is not cut and hence power will flow.Short circuit is the same as close circuit

What Differences Can You State Between The Hlt And Hold States?

Description : What Differences Can You State Between The Hlt And Hold States?

Last Answer : Answer :The Hold is a hardware input whereas HLT is a software instruction. When the HLT state is executed the processor simply stops and the buses are driven to tri state. No form of acknowledgement signal ... HOLD state it gives out an HLDA signal. This signal can be made to use by other devices.

How to Apply a Sleeper Hold

Description : How to Apply a Sleeper Hold

Last Answer : How to Apply a Sleeper Hold If you watch mixed martial arts (MMA) bouts or professional wrestling matches, you may hear the announcer call many chokes and submission moves as sleeper holds. The ... sleeper hold if you do not have the training or skills needed to apply a proper sleeper hold.

What is the use of sample and hold circuit?

Last Answer : Sample-and-hold circuit is a device with a mode control switch that causes reading the input at the instance of the trigger and maintaining that value until the next trigger pulse.

Can An Rc Circuit Be Used As Clock Source For 8085?

Description : Can An Rc Circuit Be Used As Clock Source For 8085?

Last Answer : Answer :Yes, it can be used, if an accurate clock frequency is not required. Also, the component cost is low compared to LC or Crystal.

Explain about Circuit Breaker

Description : Explain about Circuit Breaker

Last Answer : Ans: CIRCUIT BREAKERS: In the case of outdoor type installation, the circuit breakers have fixed location and the station layout is such that adequate section clearances are always available from ... carried out as above, every circuit breaker will be completely overhauled after five year interval.

What is the purpose of Overload Protection in a motor circuit?

Description : What is the purpose of Overload Protection in a motor circuit?

Last Answer : Ans. The Overload Protection is used in a motor circuit to protect it from sustained over currents.

How to Do Circuit Training

Description : How to Do Circuit Training

Last Answer : How to Do Circuit Training Circuit exercise is a set of exercises designed to burn as much calories as possible while integrating and engaging different kinds of movements all over your body. After finishing ... up your stamina to be able to finish five circuits in a session, so pace yourself.

How to Reset a Circuit Breaker

Description : How to Reset a Circuit Breaker

Last Answer : How to Reset a Circuit Breaker All is well with the lights and your electrical appliances one minute, then everything falls into pitch-black darkness the next moment. When a room in your house ... electrical fires. With these tips, a power surge does not have to be a permanent inconvenience.

How to Install a Circuit Breaker

Description : How to Install a Circuit Breaker

Last Answer : How to Install a Circuit Breaker A circuit breaker is an essential component of a home's electric system. When power surges occur, it trips then shuts off the electricity, preventing ... -functional electrical system. Just make sure you take proper safety precautions when installing this device.

Draw the circuit diagram of battery charger using SCR and explain it’s working.

Description : 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.

Explain working of static AC circuit breaker.

Description : 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.

With neat diagram explain synchronized UJT triggering circuit.

Description : 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.

Draw circuit diagram of symmetrical configuration of bridge converter.

Description : Draw circuit diagram of symmetrical configuration of bridge converter.

Last Answer : circuit diagram of symmetrical configuration of bridge converter

Draw circuit diagram of Class B commutation.

Description : Draw circuit diagram of Class B commutation.

Last Answer : Class B: Resonant Pulse Commutation:

Equivalent circuit of transformer

Description : Equivalent circuit of transformer

Last Answer : Equivalent Circuit Diagram of Transformer Referred to Primary: V1 -Primary Input voltage I1 - Input Current I0- Exciting current/ No load current Im- Magnetizing component ... equivalent of secondary terminal voltage ZL- Load impedance ZL ′- Primary equivalent of load impedance

Briefly explain how the power factor of an inductive circuit can be improved.

Description : Briefly explain how the power factor of an inductive circuit can be improved.

Last Answer : As we know that power factor should be corrected to ensure that the current supplied is cost friendly. Meaning the power factor should be around one but not greater than one(0.8-0.9) in a ... an inductive circuit due to the inductive reactance which oppose the change of current in the ac circuit. 

Draw equivalent circuit of alternator.

Description : Draw equivalent circuit of alternator.

Last Answer : Equivalent circuit of alternator

Describe the working principle of Thyristor operated dimmer with the help of circuit diagram.

Description : 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.

Define Multivibrator. State the types of multivibrator. Which M/V can be used as a flip-flop? Draw the circuit diagram.

Description : Define Multivibrator. State the types of multivibrator. Which M/V can be used as a flip-flop? Draw the circuit diagram.

Last Answer : Definition:- A multivibrator is an electronic circuit that switches rapidly by means of positive feedback between two or more states.  OR  A multivibrator is an electronic circuit used to implement a ... Bistable Multivibrator: it can operate as a flip-flop, Circuit diagram 

Important Terms in Magnetic Circuit

Description : Important Terms in Magnetic Circuit

Last Answer : Important Terms in Magnetic Circuit

Time constant of a capacitive circuit

Last Answer : It is denoted as τ, tau and has the value of 1/RC. We

Basic Circuit Elements Symbols

Description : Basic Circuit Elements Symbols

Last Answer : Basic Circuit Elements Symbols

Sinusoidal Steady-State Analysis - Using nodal analysis, find node voltages in the circuit.

Description : Sinusoidal Steady-State Analysis - Using nodal analysis, find node voltages in the circuit.

Last Answer : Sinusoidal Steady-State Analysis - Using nodal analysis, find node voltages in the circuit.

A parallel RLC circuit has the node equation Determine v(t) using the phasor method.

Description : A parallel RLC circuit has the node equation Determine v(t) using the phasor method.

Last Answer : A parallel RLC circuit has the node equation Determine v(t) using the phasor method.

The loop equation for a series RLC circuit gives

Description : The loop equation for a series RLC circuit gives

Last Answer : The loop equation for a series RLC circuit gives

Source transformation Replace the circuit with voltage source in series with a single resistor

Description : Source transformation Replace the circuit with voltage source in series with a single resistor

Last Answer : Source transformation Replace the circuit with voltage source in series with a single resistor

Explain working of AC circuit breaker using SCR with circuit diagram.

Description : 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.

role of tuned LC circuit in tuned amplifier.

Description : role of tuned LC circuit in tuned amplifier.

Last Answer : In order to pick up and amplify the desired radio frequency signal, the resistive load in the audio amplifier is replaced by a tuned circuit (also called a parallel resonant circuit)as shown ... desired radio frequency signal. (ii)Amplification of the selected signal to a suitable voltage level.

State Ohm’s law for electric circuit.

Description : State Ohm’s law for electric circuit.

Last Answer : Ohms law -States that the current flows in a circuit is directly proportional to the applied voltage (V) and inversely the proportional resistance provided with the temperature main constant

Define active circuit and passive circuit.

Description : Define active circuit and passive circuit.

Last Answer : Active circuit: Active Circuit is one which contains at least one source of e.m.f. or energy, is called active circuit.  Passive Circuit: Passive Circuit is one which does not contain any source of e.m.f. or energy in it, is called passive circuit.

Basic Circuit Elements

Description : Basic Circuit Elements

Last Answer : Resistance ,current,voltage

A supply of 24 V DC is applied across a circuit which consist of three resistors connected in parallel R1= 1.2KΩ, R2= 560 Ω, R3= 2.1Ω and a fourth resistor of 7.8 Ω connected in series with the parallel group. Determine the current, voltage and power across each resistor

Last Answer : Req= (1/1200 +1/560 + 1/2.1)^-1        = 2.1 ohms RT= 2.1 + 7.8      = 9.9 ohms IT = V/R = 24/9.9                = 2.4 A Veq= R I =  2.1 2 ... 7.8         = 12.096 w                 = 44.928 w _________________________________________ By: Ellis-Junior Kamatjipose [email protected]

Compare combinational logic circuit and sequential logic circuit

Description : Compare combinational logic circuit and sequential logic circuit

Last Answer : Combinational logic Sequential logic The combinational logic circuit consists of logic gate only Sequential logic circuit consists of combinational logic circuit along with memory for storage of ... , multiplexer, demultiplexer etc E.g. counters, shift registers flip-flop etc

What is unilateral and bilateral circuit?

Description : What is unilateral and bilateral circuit?

Last Answer : Unilateral Circuit: If the characteristic (response or behavior) of circuit depends on the direction of flow of current through its elements, then the network is called as a unilateral network.  ... the direction of current through its elements, then the network is called as a bilateral network.

Time constant for RC circuit formula

Description : Time constant for RC circuit formula τ = RC Where, τ = time constant

Last Answer : Time constant for RC circuit formula τ = RC Where, τ = time constant

Series circuit rules

Description : Series circuit rules

Last Answer : Series circuit rules

Parallel rc circuit

Description : Parallel rc circuit

Last Answer : Parallel rc circuit

Parallel circuit rules

Description : Parallel circuit rules

Last Answer : Parallel circuit rules

Source free RL circuit 8

Description : Source free RL circuit 8

Last Answer : Source free RL circuit 8

Source free RL circuit 7

Description : Source free RL circuit 7

Last Answer : Source free RL circuit 7

Source free RL circuit 6

Description : Source free RL circuit 6

Last Answer : Source free RL circuit 6

Source free RC circuit 2

Description : Source free RC circuit 2

Last Answer : Source free RC circuit 2

Source free RC circuit 3

Description : Source free RC circuit 3

Last Answer : Source free RC circuit 3

Source free RC circuit 4

Description : Source free RC circuit 4

Last Answer : Source free RC circuit 4

Source free RC circuit 5

Description : Source free RC circuit 5

Last Answer : Source free RC circuit 5

Source free RC circuit 6

Description : Source free RC circuit 6

Last Answer : Source free RC circuit 6

Source free RC circuit 7

Description : Source free RC circuit 7

Last Answer : Source free RC circuit 7