To calculate and verify z parameters of twoport network. The relationship between voltages and current in h parameters. The yparameters are also called shortcircuit admittance parameters. Y parameters are known asshort circuit admittance parameters because in both the cases, oneport is short i. Here, input and output voltages are expressed in terms of input and output currents. Write the equations of a two port network in terms of desired parameters. Admittance parameters or yparameters the elements of an admittance matrix or ymatrix are properties used in many areas of electrical engineering, such as power, electronics, and telecommunications. Short circuit admittance parameters y parameters these parameters are obtained by expressing currents at two ports in terms of voltages at two ports. Theory z suggests that large complex organisations are human systems and their effectiveness depends on the quality of humanism used. In this article we will see the conversion from one twoport parameter to the other twoport parameters. Ieee transactions on microwave theory and techniques 422. Therefore most people must be motivated by forcedbribed with the threat of punishment or a reward to produce effort and work towards organizational objectives.
A two port network can be characterised by by four external variables. Conversion from yparameters to zparameters is much simpler, as the zparameter matrix is just the inverse of. When z11z22, the twoport circuit is said to be symmetrical. Admittance parameters or y parameters the elements of an admittance matrix or y matrix are properties used in many areas of electrical engineering, such as power, electronics, and telecommunications. Theory xy douglas mcgregor and theory z william ouichi. Z 12 is the reverse transfer impedance when input is opencircuited. H parameters encapsulate all the important linear characteristics of the circuit, so they are very useful for simulation purposes. Conversion from zparameters to yparameters is much simpler, as the yparameter matrix is just the inverse of the. Multiport conversions between s, z, y, h, abcd, and t. Determine the z and y parameters for the circuit in fig. Is there an equivalent matrix for transmission line.
Y, h, and abcd parameters as well as between s and t parameters. Here, y 11, y 12, y 21 and y 22 are admittance parameter. Network theory lab ee223f lab manual iii sem ece page 7 experiment no. Scribd is the worlds largest social reading and publishing site. A twoport network a kind of fourterminal network or quadripole is an electrical network or device with two pairs of terminals to connect to external circuits. Admittance parameters or y parameters electrical4u.
Follow these steps, while converting one set of two port network parameters into the other set of two port network parameters. The zparameters of the two port network has been calculated and verified. Now, we will calculate the value of sending end voltage and current in terms of receiving end voltage and current. We can determine the values of the parameters of a particular two port network by making shortcircuited output port and input port alternatively as follows. Mcgregors ideas suggest that there are two fundamental approaches to managing people. When twoport networks are connected a in series, their impedance parameters add. Theory of noise measurement application note 5c042 page 1 of 3 introduction noise is a natural phenomenon that affects most. Find the z and y parameters in resistive network duration. When z12z21, the twoport circuit is called a reciprocal circuit.
The construction has a natural interpretation in terms of compacti. C4 appendixc two portnetworkparameters owing to the duality between the z and yparameter characterizations, we shall not give a detailed discussion of z parameters. We know that, the following matrix equation of two port network regarding z parameters as. For unsymmetrical network we have the linear parameters are. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. It is also known as short circuit admittance parameter. But, we use impedance z, admittance y, or reflection. Long sha ft, rod, beam, column, sp otwelding, bol 23d oth er x y z all dimension s are c om mas s point ele ment, c on.
First let us apply current source of i 1 at input port keeping the output port short circuited as shown below. Theory and applications, exercise 19 if the current it through a resistor r decays exponentially with a time constant t, what is the ratio of the power dissipated in the resistor at time t t to its value at t 0. Conversion between two port parameters gate study material. What are the applications of z and y parameters in two. The zparameters are also called opencircuit impedance parameters since they are obtained as a ratio of voltage and current and the parameters are obtained by opencircuiting port 2 i 2 0 or port1 i 1 0.
Mar 06, 2019 h parameters are useful in describing the inputoutput characteristics of circuits where it is hard to measure z or y parameters such as a transistor. The relationship between mcgregors xy theory management. Z parameters are also known as opencircuit impedance parameters as they are calculated under open circuit conditions. It is better to work with z parameters and then convert to y parameters. Values i used for s11, s12, s21, s22 are as shown in picture.
Now, let us discuss about these two port network parameters one by one. Power supply, bread board, five resistances, connecting leads. Evidence for ftheory cumrun vafa lyman laboratory of physics, harvard university cambridge, ma 028, usa we construct compact examples of dmanifolds for type iib strings. William ouchi developed theory z after making a comparative study of japanese and american management practices. Just as douglas macgregors theory x and y were based on management assumptions about people, so too is ouichis theory z approach. Pdf conversions between s, z, y, h, abcd, and t parameters. Since admittance is the ratio of circuit current and voltage, therefore this admittance matrix gives the relationship between the input and output current and voltage of the network. In this case we use the letter 0 2f 3 for the irrelevant parameters and the nonzero values 1 for the parameters that are set in the language. Theory z william ouchi during the 1970s, when japanesestyle management was all the rage, william ouchi, took the theory x, theory y concept one step further. Application of theory x and y in classroom management by. To calculate and verify y parameters of twoport network. A twoport network can be described by zparameters as. Two terminals constitute a port if the currents applied to them satisfy the essential requirement known as the port condition.
Job security the japanese theory z approach believes that people are a far too valuable resource to be lost when the economy has a. The efficiency of transmission lines efficiency of the transmission lines is defined as the ratio of the input power to the output. Theory xy douglas mcgregor and theory z william ouichi theory x an authoritarian style of management the average worker dislikes work. The z parameters are also called opencircuit impedance parameters since they are obtained as a ratio of voltage and current and the parameters are obtained by opencircuiting port 2 i 2 0 or port1 i 1 0. The constants y 11, y 12, y 21, and y 22 are called the admittance or y parameters of the twoport network. In particular, and are transfer impedances, defined as the ratio of a voltage or in one part of a network to a current or in another part. Motivation, theory x and y, classroom, management manager and organisation introduction douglas mcgregor, an american social psychologist, proposed his famous theory x and y in his book the human side of enterprise in 1960. Z 0 is in general an arbitrary reference impedance, but usually the characteristic impedance of a line e. They are also used to describe the smallsignal response of nonlinear networks. What are the applications of z and y parameters in two port. Yet, their ubiquity notwithstanding, it is quite unclear what sociologists mean by the words theory, theoretical, and theorize.
Now, let us discuss about some of the two port parameter conversions. Mcgregors xy theory is a natural rule for managing people. Jan 06, 2019 here, y 11, y 12, y 21 and y 22 are admittance parameter. Voltage regulation voltage regulation is defined as the change in the magnitude of the voltage between the sending and receiving ends of the transmission line. Admittance parameters or yparameters are properties used in many areas of electrical. Similarly, we can calculate the other two z parameters, z 12 and z 22 by doing open circuit of port1. Conversions between s, z, y, h, abcd, and t parameters. A pair of terminals at which a signal voltage or current may enter. Theory z, however, advocates a combination of all best attributes of theory y and modern japanese management principles, which place a large amount of freedom and trust with workers, and assumes that workers have a strong loyalty and interest in teamworking and the.
Get an answer for compare the theory x, theory y, and theory z assumptions of human relations. A twoport network is reciprocal if y 12 y 21, z 12 z 21, h 12 h21. Owing to the duality between the z and y parameter characterizations, we shall not give a detailed discussion of z parameters. Z 11 and z 22 are also referred as driving point impedance. Conversion between two port parameters gate study material in pdf in the previous article we have seen about two port parameters for standard networks. Impedance parameters or zparameters are properties used in electrical engineering. So, in this case z parameters are the desired parameters and y parameters are the given parameters. Ouchi was born and educated in america, but was of japanese descent. Z 22 is the output impedance when input is opencircuited. Jul 23, 2017 40 for the network given below, what would be the value of z 22, if the estimated zparameters are z 11 30 and z 12 z 21 10. Theory x management style generally get poor results compare with managers use theory y, which produces better performance and results, and allows people to grow and develop. Hence, the z parameters are also called as opencircuit impedance parameters. If the linear network only contains passive elements, it is reciprocal.
In the theory of errorcorrecting codes, see 15, one assigns to a code c. Conversions between s, z, y, h, abcd, and t parameters which. Z 21 is the forward transfer impedance when output is opencircuit. Multiport conversions between s, z, y, h, abcd, and t parameters. Fleishman uses fleishmans thirdorder polynomial transformation and polynomial uses headricks fifthorder transformation. Ieee transactions on microwave theory and techniques. The z parameters of the two port network has been calculated and verified. Here all four parameters,, and represent impedance. Gabriel abend northwestern university theory is one of the most important words in the lexicon of contemporary sociology. These parameters are used to describe the electrical behavior of linear electrical networks. Z and y parameters signal processing electrical engineering.
Network theory lab ee223f lab manual iii sem ece page 8 2 when ip is open circuited i. Here, we have to represent z parameters in terms of y parameters. There exist six different ways to describe the relationships between these va. Z 21 and z 12 are also referred as transfer impedance. Abcd parameters of transmission line electrical concepts. Z parameters problem 1 two port network circuit theory. For better understanding, let us take the circuit below, let us put a voltage source v 1 at input, now, let us connect one voltage source v 2. However, we often use devices with 2, 3, 4, or even more portsmultiple transmission lines can be attached to them. They are impedance parameters z, admittance parameters y, transmission. The remaining twodimensions, the area input data and assigned tothe respectiveelements practical exa mple. Conversions between s, z, y, h, abcd, and t parameters which are.
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