magnetics | PartQuest™ Explore

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Mike Donnelly
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Mike Donnelly

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Member of the PartQuest Explore Development Team. Focused on modeling and simulation of analog, mixed-signal and multi-discipline systems covering a broad range of applications, including power electronics, controls and mechatronic systems.

Copy of Inductor Model using Magnetic Circuit Modeling Method - on Thu, 05/16/2024 - 16:46

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Description

This example shows that you can build an inductor model from magnetic components (i.e. a winding and a core), and with an air-gap if needed.

You can run the nominal simulation with n = 23 turns on the winding, with the core model state set to "Linear" and a near-zero air-gap. The current transient in the winding matches the current in an ideal inductor model, both are representative of 1mH inductance. But in that configuration, the flux density "b" in the core is over 1.8 Tesla, well beyond the limits of a ferrite material.

You can set the magnetic core to "Non-linear with Saturation", and note that the saturation level is 525mT for the modeled core material. Then you can re-run the simulation to see the actual current profile that would result from this more realistic core behavior.

Finally, set the number of winding turns to 96. Then set the air-gap to 0.25mm, instead of the nominal 0.25um. This will restore the current rise profile that is expected for a 1mH inductor, but also keep the flux density in the core below the 525mT level.

It is also instructive to observe the energy stored in the ideal inductor, as well as the magnetic core and the air-gap, in each of the cases above.

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Copy of Inductor Model using Magnetic Circuit Modeling Method - on Thu, 05/16/2024 - 16:46

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4 years 10 months

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Description

This example shows that you can build an inductor model from magnetic components (i.e. a winding and a core), and with an air-gap if needed.

You can run the nominal simulation with n = 23 turns on the winding, with the core model state set to "Linear" and a near-zero air-gap. The current transient in the winding matches the current in an ideal inductor model, both are representative of 1mH inductance. But in that configuration, the flux density "b" in the core is over 1.8 Tesla, well beyond the limits of a ferrite material.

You can set the magnetic core to "Non-linear with Saturation", and note that the saturation level is 525mT for the modeled core material. Then you can re-run the simulation to see the actual current profile that would result from this more realistic core behavior.

Finally, set the number of winding turns to 96. Then set the air-gap to 0.25mm, instead of the nominal 0.25um. This will restore the current rise profile that is expected for a 1mH inductor, but also keep the flux density in the core below the 525mT level.

It is also instructive to observe the energy stored in the ideal inductor, as well as the magnetic core and the air-gap, in each of the cases above.

About text formats

Copy of Inductor Model using Magnetic Circuit Modeling Method - on Thu, 05/16/2024 - 16:46

Designer0

Member for

4 years 10 months

0

designs

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Description

This example shows that you can build an inductor model from magnetic components (i.e. a winding and a core), and with an air-gap if needed.

You can run the nominal simulation with n = 23 turns on the winding, with the core model state set to "Linear" and a near-zero air-gap. The current transient in the winding matches the current in an ideal inductor model, both are representative of 1mH inductance. But in that configuration, the flux density "b" in the core is over 1.8 Tesla, well beyond the limits of a ferrite material.

You can set the magnetic core to "Non-linear with Saturation", and note that the saturation level is 525mT for the modeled core material. Then you can re-run the simulation to see the actual current profile that would result from this more realistic core behavior.

Finally, set the number of winding turns to 96. Then set the air-gap to 0.25mm, instead of the nominal 0.25um. This will restore the current rise profile that is expected for a 1mH inductor, but also keep the flux density in the core below the 525mT level.

It is also instructive to observe the energy stored in the ideal inductor, as well as the magnetic core and the air-gap, in each of the cases above.

About text formats

Copy of Inductor Model using Magnetic Circuit Modeling Method - on Thu, 05/16/2024 - 16:46

Designer0

Member for

4 years 10 months

0

designs

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Description

This example shows that you can build an inductor model from magnetic components (i.e. a winding and a core), and with an air-gap if needed.

You can run the nominal simulation with n = 23 turns on the winding, with the core model state set to "Linear" and a near-zero air-gap. The current transient in the winding matches the current in an ideal inductor model, both are representative of 1mH inductance. But in that configuration, the flux density "b" in the core is over 1.8 Tesla, well beyond the limits of a ferrite material.

You can set the magnetic core to "Non-linear with Saturation", and note that the saturation level is 525mT for the modeled core material. Then you can re-run the simulation to see the actual current profile that would result from this more realistic core behavior.

Finally, set the number of winding turns to 96. Then set the air-gap to 0.25mm, instead of the nominal 0.25um. This will restore the current rise profile that is expected for a 1mH inductor, but also keep the flux density in the core below the 525mT level.

It is also instructive to observe the energy stored in the ideal inductor, as well as the magnetic core and the air-gap, in each of the cases above.

About text formats

Copy of Inductor Model using Magnetic Circuit Modeling Method - on Thu, 05/16/2024 - 16:46

Designer0

Member for

4 years 10 months

0

designs

0

groups

Description

This example shows that you can build an inductor model from magnetic components (i.e. a winding and a core), and with an air-gap if needed.

You can run the nominal simulation with n = 23 turns on the winding, with the core model state set to "Linear" and a near-zero air-gap. The current transient in the winding matches the current in an ideal inductor model, both are representative of 1mH inductance. But in that configuration, the flux density "b" in the core is over 1.8 Tesla, well beyond the limits of a ferrite material.

You can set the magnetic core to "Non-linear with Saturation", and note that the saturation level is 525mT for the modeled core material. Then you can re-run the simulation to see the actual current profile that would result from this more realistic core behavior.

Finally, set the number of winding turns to 96. Then set the air-gap to 0.25mm, instead of the nominal 0.25um. This will restore the current rise profile that is expected for a 1mH inductor, but also keep the flux density in the core below the 525mT level.

It is also instructive to observe the energy stored in the ideal inductor, as well as the magnetic core and the air-gap, in each of the cases above.

About text formats

Copy of Inductor Model using Magnetic Circuit Modeling Method - on Mon, 04/29/2024 - 14:53

Designer0

Member for

4 years 10 months

0

designs

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Description

This example shows that you can build an inductor model from magnetic components (i.e. a winding and a core), and with an air-gap if needed.

You can run the nominal simulation with n = 23 turns on the winding, with the core model state set to "Linear" and a near-zero air-gap. The current transient in the winding matches the current in an ideal inductor model, both are representative of 1mH inductance. But in that configuration, the flux density "b" in the core is over 1.8 Tesla, well beyond the limits of a ferrite material.

You can set the magnetic core to "Non-linear with Saturation", and note that the saturation level is 525mT for the modeled core material. Then you can re-run the simulation to see the actual current profile that would result from this more realistic core behavior.

Finally, set the number of winding turns to 96. Then set the air-gap to 0.25mm, instead of the nominal 0.25um. This will restore the current rise profile that is expected for a 1mH inductor, but also keep the flux density in the core below the 525mT level.

It is also instructive to observe the energy stored in the ideal inductor, as well as the magnetic core and the air-gap, in each of the cases above.

About text formats

Copy of Inductor Model using Magnetic Circuit Modeling Method - on Mon, 04/29/2024 - 14:53

Designer0

Member for

4 years 10 months

0

designs

0

groups

Description

This example shows that you can build an inductor model from magnetic components (i.e. a winding and a core), and with an air-gap if needed.

You can run the nominal simulation with n = 23 turns on the winding, with the core model state set to "Linear" and a near-zero air-gap. The current transient in the winding matches the current in an ideal inductor model, both are representative of 1mH inductance. But in that configuration, the flux density "b" in the core is over 1.8 Tesla, well beyond the limits of a ferrite material.

You can set the magnetic core to "Non-linear with Saturation", and note that the saturation level is 525mT for the modeled core material. Then you can re-run the simulation to see the actual current profile that would result from this more realistic core behavior.

Finally, set the number of winding turns to 96. Then set the air-gap to 0.25mm, instead of the nominal 0.25um. This will restore the current rise profile that is expected for a 1mH inductor, but also keep the flux density in the core below the 525mT level.

It is also instructive to observe the energy stored in the ideal inductor, as well as the magnetic core and the air-gap, in each of the cases above.

About text formats

Copy of Inductor Model using Magnetic Circuit Modeling Method - on Mon, 04/29/2024 - 14:53

Designer0

Member for

4 years 10 months

0

designs

0

groups

Description

This example shows that you can build an inductor model from magnetic components (i.e. a winding and a core), and with an air-gap if needed.

You can run the nominal simulation with n = 23 turns on the winding, with the core model state set to "Linear" and a near-zero air-gap. The current transient in the winding matches the current in an ideal inductor model, both are representative of 1mH inductance. But in that configuration, the flux density "b" in the core is over 1.8 Tesla, well beyond the limits of a ferrite material.

You can set the magnetic core to "Non-linear with Saturation", and note that the saturation level is 525mT for the modeled core material. Then you can re-run the simulation to see the actual current profile that would result from this more realistic core behavior.

Finally, set the number of winding turns to 96. Then set the air-gap to 0.25mm, instead of the nominal 0.25um. This will restore the current rise profile that is expected for a 1mH inductor, but also keep the flux density in the core below the 525mT level.

It is also instructive to observe the energy stored in the ideal inductor, as well as the magnetic core and the air-gap, in each of the cases above.

About text formats

Copy of Inductor Model using Magnetic Circuit Modeling Method - on Mon, 04/29/2024 - 14:53

Designer0

Member for

4 years 10 months

0

designs

0

groups

Description

This example shows that you can build an inductor model from magnetic components (i.e. a winding and a core), and with an air-gap if needed.

You can run the nominal simulation with n = 23 turns on the winding, with the core model state set to "Linear" and a near-zero air-gap. The current transient in the winding matches the current in an ideal inductor model, both are representative of 1mH inductance. But in that configuration, the flux density "b" in the core is over 1.8 Tesla, well beyond the limits of a ferrite material.

You can set the magnetic core to "Non-linear with Saturation", and note that the saturation level is 525mT for the modeled core material. Then you can re-run the simulation to see the actual current profile that would result from this more realistic core behavior.

Finally, set the number of winding turns to 96. Then set the air-gap to 0.25mm, instead of the nominal 0.25um. This will restore the current rise profile that is expected for a 1mH inductor, but also keep the flux density in the core below the 525mT level.

It is also instructive to observe the energy stored in the ideal inductor, as well as the magnetic core and the air-gap, in each of the cases above.

About text formats

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Mike Donnelly
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