Question 2. A ferrite core shown in fig.2 is known as a pot-core. The central ferrite cylinder, bottom and sides make up a single piece. The coil is placed around the central core and a flat ferrite disc is installed at the top (a small opening exists for the flow of electric connections). The coil inductance is adjusted according to the reduction of height of the central core with the goal of introducing an air gap. The diameter of the central core is 22mm. The ferrite's reluctance is too small to be considered. a) Present the magnetic equivalent circuit. b) Assuming a 1250 winding coil, calculate the air gap for an inductance of 350mH. c) Considering Bmax = 0,38 T in the core, calculate the maximum current in the coil.
Question 2. A ferrite core shown in fig.2 is known as a pot-core. The central ferrite cylinder, bottom and sides make up a single piece. The coil is placed around the central core and a flat ferrite disc is installed at the top (a small opening exists for the flow of electric connections). The coil inductance is adjusted according to the reduction of height of the central core with the goal of introducing an air gap. The diameter of the central core is 22mm. The ferrite's reluctance is too small to be considered. a) Present the magnetic equivalent circuit. b) Assuming a 1250 winding coil, calculate the air gap for an inductance of 350mH. c) Considering Bmax = 0,38 T in the core, calculate the maximum current in the coil.
Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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![Question 2.
A ferrite core shown in fig.2 is known as a pot-core. The central ferrite cylinder, bottom and sides make up a
single piece. The coil is placed around the central core and a flat ferrite disc is installed at the top (a
small opening exists for the flow of electric connections). The coil inductance is adjusted according to the
reduction of height of the central core with the goal of introducing an air gap. The diameter of the central
core is 22mm. The ferrite's reluctance is too small to be considered.
a) Present the magnetic equivalent circuit.
b) Assuming a 1250 winding coil, calculate the air gap for an inductance of 350mH.
c) Considering Bmax = 0,38 T in the core, calculate the maximum current in the coil.
d) What is the consequence of the circulation of current in the coil larger than the value calculated
in (c)?
Figure 2.1](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F71a9673c-8a96-4e61-900b-4b5116b82ebc%2Ffbee4e2a-5207-4492-ad23-9ede872cbf2c%2Fq5txzx_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Question 2.
A ferrite core shown in fig.2 is known as a pot-core. The central ferrite cylinder, bottom and sides make up a
single piece. The coil is placed around the central core and a flat ferrite disc is installed at the top (a
small opening exists for the flow of electric connections). The coil inductance is adjusted according to the
reduction of height of the central core with the goal of introducing an air gap. The diameter of the central
core is 22mm. The ferrite's reluctance is too small to be considered.
a) Present the magnetic equivalent circuit.
b) Assuming a 1250 winding coil, calculate the air gap for an inductance of 350mH.
c) Considering Bmax = 0,38 T in the core, calculate the maximum current in the coil.
d) What is the consequence of the circulation of current in the coil larger than the value calculated
in (c)?
Figure 2.1
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