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The resonance effect of the LC circuit has many important applications in signal processing and communications systems.
- The most common application of tank circuits is tuning radio transmitters and receivers. For example, when we tune a radio to a particular station, the LC circuits are set at resonance for that particular carrier frequency.
- A series resonant circuit provides voltage magnification.
- A parallel resonant circuit provides current magnification.
- A parallel resonant circuit can be used as load impedance in output circuits of RF amplifiers. Due to high impedance, the gain of amplifier is maximum at resonant frequency.
- Both parallel and series resonant circuits are used in induction heating.
LC circuits behave as electronic resonators, which are a key component in many applications:
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What is stagger tuned amplifier?
Stagger Tuned Amplifiers are used to improve the overall frequency response of tuned Amplifiers. Stagger tuned Amplifiers are usually designed so that the overall response exhibits maximal flatness around the centre frequency.It needs a number of tuned circuit operating in union. The overall frequency response of a Stagger tuned amplifier is obtained by adding the induvidual response together. Since the resonant Frequencies of different tuned circuits are displaced or staggered, they are referred as STAGGER TUNED AMPLIFIER.The main advantage of stagger tuned amplifier is INCREASED BANDWIDTH. Its Drawback is Reduced Selectivity and critical tuning of many tank circuits. They are used in RF amplifier stage in Radio Receivers.
Circuit for single tuned amplifier?
A single tuned amplifier basically consists of a tuned circuit (which may consist of an IFT or a parallel tuned LC circuit) connected to the collector of an amplifier circuit (in Common Emitter configuration). The tuned circuit is designed to get a resonant frequency equal to the incoming frequency signal that arrives at the base. The Single Tuned Amplifier gives maximum amplification to that particular incoming frequency which matches the resonant frequency of the tuned circuit and attenuates all other frequencies. Thus it gives sharp selectivity with a high Q-factor.
What is the labeling nomenclature for capacitors and how is it used to identify and select capacitors?
Capacitors are marked with the capacitance and the maximum working voltage. The action of a capacitor is store charge short-term and a capacitor is commonly used as a reservoir of charge in a rectifier circuit to smooth the dc output voltage. Other uses in electronic circuits are as a dc-blocker which passes an ac signal while not passing the dc bias, or as a decoupling capacitor in dc circuits to remove any ac signals present while preserving the dc voltage, or in timing circuits because the time-constant of a resistor and a capacitor connected together is CR, or in filters and tuned circuits. Sometimes a variable capacitor is used, connected to a control knob for tuning a radio. In each of the above applications there are accurate methods to decide exactly how much capacitance is required.
What detrimental effect does inductance have on the current in an alternating current circuit?
In inductive circuits the current phase lags behind the voltage phase. The phase difference between current and voltage can mean you can get heavy currents flowing that aren't doing useful work, yet contribute to wasted power if they flow in other parts of the circuit (or even in surrounding metal screens etc) . In some circuits, such as tuned circuits, inductance is an important feature so resistive components have to be avoided there.
What is high frequency tuned amplifier?
High frequency amplifier is a device which is tuned by high frequency. Tuned means the overlapping of generated frequency with that amplifier.
What is the definition of single tuned circuits?
a circuit in which secondary coil alone is tuned
Are LC circuits and tuned circuits same thing?
a "LC circuit at resonance" and tuned circuits are the same
What are the applications of rlc series ciruits?
Variable tuned circuits Filters Oscillators Voltage multiplier Pulse discharge circuit
What is stagger tuned amplifier?
Stagger Tuned Amplifiers are used to improve the overall frequency response of tuned Amplifiers. Stagger tuned Amplifiers are usually designed so that the overall response exhibits maximal flatness around the centre frequency.It needs a number of tuned circuit operating in union. The overall frequency response of a Stagger tuned amplifier is obtained by adding the induvidual response together. Since the resonant Frequencies of different tuned circuits are displaced or staggered, they are referred as STAGGER TUNED AMPLIFIER.The main advantage of stagger tuned amplifier is INCREASED BANDWIDTH. Its Drawback is Reduced Selectivity and critical tuning of many tank circuits. They are used in RF amplifier stage in Radio Receivers.
Why transformer coupled amplifier is more efficient than RC coupled amplifier?
an RC coupled amplifier is basically used for voltage amplification , where the circuit currents are quite low. higher currents & voltages would mean more dissipation in the load resistors , which is essentially very lossy . The coupling amplitude to the next stage is ideally the same as the previous stage signal excursion. However if a transformer is used for coupling , both large voltages & current can be handled without incurring the dissipation of a resistive load. Moreover a coupling gain of the transformer primary to secondary ratio is also a bonus. also because of the possiblity of correct impedance matching on the primary & secondary side maximum power coupling is obtained. hence transformer coupling is more efficient in such applications. in high frequency applications transformer coupling , along with tuned circuits as applicable is the choice circuit.
Circuit for single tuned amplifier?
A single tuned amplifier basically consists of a tuned circuit (which may consist of an IFT or a parallel tuned LC circuit) connected to the collector of an amplifier circuit (in Common Emitter configuration). The tuned circuit is designed to get a resonant frequency equal to the incoming frequency signal that arrives at the base. The Single Tuned Amplifier gives maximum amplification to that particular incoming frequency which matches the resonant frequency of the tuned circuit and attenuates all other frequencies. Thus it gives sharp selectivity with a high Q-factor.
What is a scientific word for q?
Q is often used to connote "electric charge".The Q factor of tuned circuits is a measure of "quality factor". It is a measure of how well the tuned circuit selects wanted frequencies and rejects the unwanted.
Give the derivation of Single tuned and double-tuned circuit?
The circuit has one inductor and capacitor connected in such a way that it produce the resonance condition for only one frequency. on the other hand for double tuned circuit it has more number of reactive elements and it has two tuning frequency. The single tuned circuit is of interest when the poles are imaginary, and rest of the two cases are not more interest. w=wn the time it produce the resonance and the damping factor zeta is zero and the circuit is in undamped condition.
How do you achieve a wide bandwidth and a high voltage gain in an amplifier?
Do you mean with opamp circuits or tuned RF/IF amplifiers? In both cases several stages can be used to increase the gain. With opamp circuits though getting both wide bandwidth and high gain at the same time is difficult. With tuned RF/IF amplifiers two things can be done to get wide bandwidth: 1) reduce the Q of the tuned coupling transformers connecting the stages and 2) stagger the tuning of the tuned coupling transformers connecting the stages so that some are detuned high while others are detuned low.
What does the number of a radio station represent?
The AC frequency to which the circuits in the radio receiver must be tuned in order to concentrate on that particular station and ignore all the others.
How are shortwaves produced?
Short wave as in shortwave radio just means waves of a certain wavelength . The wave is usually made by ovilators and tuned circuits. In a shortwave radio you generally tuned the final resonating circuit to the specific frequency . Now the radio probably uses PLL technology to generate the wave
Why is gang capacitor known as gang capacitor?
Because they are Ganged ( Grouped ) together , such that they can be tuned through a single tuner.
