Basics of gyrator
A gyrator two port electrical network element proposed in 1948 by Bernard D.H.Tellegan as a hypothetical fifth linear element after resistor ,capacitor,inductor and ideal transformer. It is a non reciprocal ferrite electronic device.It is having a characteristics of passive , linear , lossless and memory less ,time invariant two port network .A gyrator which is similar to an ideal transformer.It is typically a RF device .
Working of gyrator
It is two port device that has a relative phase shift of 180 degree in forward direction and 0(zero) degree phase shift in reverse direction Hence, it was also known as differential phase shift device .
When the signal is fed into port 1 the output at the port 2 has 180 degree phase shifted .The vice versa is not possible .When the signal is fed into port2 the signal at the port1 is 0(zero) degree phase shifted.A cascade connection of two gyrator is equivalent to an ideal transformer.
It transform load capacitance into an inductance .At low frequency and low powers ,the behavior of the gyrator can be reproduced by a small opamp circuit .Gyrator circuits are often used in IC's where it is not possible to include inductor because of space and size limitation .A gyrator which is an example of nonenergic system .It is constructed from the nullors and resistors are also elaborated.
directional phase shifter, a microwave device. This device creates a half-wave phase change of electromagnetic waves propagating in opposite directions. The operating principle of gyrators is based on the irreversible properties of magnetized ferrite; these properties cause rotations of polarization plane, phase shift, and so on. The simplest kind of gyrator consists of a circular radio waveguide that contains an appropriately dimensioned, magnetized ferrite rod (magnetized in a magnetic field of a previously determined intensity). A circular waveguide is coupled to a rectangular waveguide by matching transitions.
When a capacitor is connected at input of gyrator it appears as almost pure inductor at output terminals.
Application of gyrator
• Primary goal is reduced size of circuit by removing inductor.
• It is used in a telephony device that is connected to POTS.
• Parametric equalizer
• Band pass filter (BPF)
• Anywhere in which one can replace inductor to reduce size of circuit
• It is used as a components in various microwave devices such as gates , modulators ,circulators and switches.
A gyrator two port electrical network element proposed in 1948 by Bernard D.H.Tellegan as a hypothetical fifth linear element after resistor ,capacitor,inductor and ideal transformer. It is a non reciprocal ferrite electronic device.It is having a characteristics of passive , linear , lossless and memory less ,time invariant two port network .A gyrator which is similar to an ideal transformer.It is typically a RF device .
Working of gyrator
It is two port device that has a relative phase shift of 180 degree in forward direction and 0(zero) degree phase shift in reverse direction Hence, it was also known as differential phase shift device .
When the signal is fed into port 1 the output at the port 2 has 180 degree phase shifted .The vice versa is not possible .When the signal is fed into port2 the signal at the port1 is 0(zero) degree phase shifted.A cascade connection of two gyrator is equivalent to an ideal transformer.
It transform load capacitance into an inductance .At low frequency and low powers ,the behavior of the gyrator can be reproduced by a small opamp circuit .Gyrator circuits are often used in IC's where it is not possible to include inductor because of space and size limitation .A gyrator which is an example of nonenergic system .It is constructed from the nullors and resistors are also elaborated.
directional phase shifter, a microwave device. This device creates a half-wave phase change of electromagnetic waves propagating in opposite directions. The operating principle of gyrators is based on the irreversible properties of magnetized ferrite; these properties cause rotations of polarization plane, phase shift, and so on. The simplest kind of gyrator consists of a circular radio waveguide that contains an appropriately dimensioned, magnetized ferrite rod (magnetized in a magnetic field of a previously determined intensity). A circular waveguide is coupled to a rectangular waveguide by matching transitions.
When a capacitor is connected at input of gyrator it appears as almost pure inductor at output terminals.
Application of gyrator
• Primary goal is reduced size of circuit by removing inductor.
• It is used in a telephony device that is connected to POTS.
• Parametric equalizer
• Band pass filter (BPF)
• Anywhere in which one can replace inductor to reduce size of circuit
• It is used as a components in various microwave devices such as gates , modulators ,circulators and switches.
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