Home » Coupled Circuits

Coupled Circuits

Parallel Magnetic Circuit

Parallel Magnetic Circuit: We have seen that a series magnetic circuit carries the same flux and the total mmf required to produce a given quantity of flux is the sum of the mmf’ s for the separate parts. In a Parallel Magnetic Circuit, different parts of the circuit are in parallel. For such circuits the …

Parallel Magnetic Circuit Read More »

Difference Between Electric Circuit and Magnetic Circuit

Difference Between Electric Circuit and Magnetic Circuit: A Difference Between Electric Circuit and Magnetic Circuit are shown in Figs. 10.27(a) and (b) respectively. Figure 10.27(a) represents an electric circuit with three resistances connected in series, the dc source E drives the current I through all the three resistances whose voltage drops are V1,V2 and V3. Hence, …

Difference Between Electric Circuit and Magnetic Circuit Read More »

Series Magnetic Circuit

Series Magnetic Circuit: A series magnetic circuit is analogous to a series electric circuit. Kirchhoff s laws are applicable to magnetic circuits also. Consider a ring specimen having a magnetic path of l meters, area of cross-section (A)m2 with a mean radius of R meters having a coil of N turns carrying I amperes wound …

Series Magnetic Circuit Read More »

Magnetic Circuit Analysis

Magnetic Circuit Analysis: Magnetic Circuit Analysis – The presence of charges in space or in a medium creates an electric field, similarly the flow of current in a conductor sets up a magnetic field. Electric field is represented by electric flux lines, magnetic flux lines are used to describe the magnetic field. The path of …

Magnetic Circuit Analysis Read More »

Doubled Tuned Coupled Circuits

Doubled Tuned Coupled Circuits: Figure 10.24 shows a Doubled Tuned Coupled Circuits involving two series resonant circuits. For the circuit shown in the figure, a special case where the primary and secondary resonate at the same frequency ωr, is considered here, i.e. The two mesh equations for the circuit are From which or where A …

Doubled Tuned Coupled Circuits Read More »

Single Tuned Circuit

Single Tuned Circuit: Consider the Single Tuned Circuit in Fig. 10.21. A tank circuit (i.e. a parallel resonant circuit) on the secondary side is inductively coupled to coil (1) which is excited by a source, υi. Let Rs be the source resistance and R1,R2 be the resistances of coils, 1 and 2, respectively. Also let L1,L2 …

Single Tuned Circuit Read More »

Inductively Coupled Circuits

Inductively Coupled Circuits: Inductively coupled multi-mesh circuits can be analysed using Kirchhoff s laws and by loop current methods. Consider Fig. 10.17, where three coils are inductively coupled. For such a system of inductors we can define a inductance matrix L as where L11, L22 and L33 are self inductances of the coupled circuits, and L12 = …

Inductively Coupled Circuits Read More »