Compare Soft Saturation vs. Regular Inductor - Switching Mike DonnellyDesigner19 × Mike Donnelly Member for 10 years 5 months 1,547 designs 10 groups 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. https://explore.partquest.com/node/25736 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/25736"></iframe> Title Description <p>This design shows the importance of choosing the right inductor size and type, to avoid saturation-induced current spikes during operating transients. In this case, the start-up transient in two nearly identical open-loop buck power stages (12V -> 3V) is examined. The only difference is that the top circuit is using an inductor calibrated to a Coilcraft XAL6060-223 (22uH), which has "soft saturation" behavior. The bottom circuit is using a similarly sized inductor, but with a more typical "hard saturation" characteristic.</p> <p>Both inductors work well for the steady-state load condition of 3 Amp. But during the turn-on transient, that current can go significantly above that nominal level. At that time, the instantaneous inductance of the hard-saturating device collapses, resulting in even larger current spikes in each switching interval. Note in the waveforms on the left: The soft-saturation inductance drops to 14uH minimum during the transient, whereas the hard-saturation inductance crashes to near 2uH, or only 10% of its nominal value!</p> About text formats Tags Buck Power Stageinductance collapseCoilcraftXAL6060-223 Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
Copy of Compare Soft Saturation vs. Regular Inductor - Switching - on Wed, 04/24/2024 - 12:25 Designer0 × Member for 4 years 3 months 0 designs 0 groups https://explore.partquest.com/node/648454 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/648454"></iframe> Title Description <p>This design shows the importance of choosing the right inductor size and type, to avoid saturation-induced current spikes during operating transients. In this case, the start-up transient in two nearly identical open-loop buck power stages (12V -> 3V) is examined. The only difference is that the top circuit is using an inductor calibrated to a Coilcraft XAL6060-223 (22uH), which has "soft saturation" behavior. The bottom circuit is using a similarly sized inductor, but with a more typical "hard saturation" characteristic.</p> <p>Both inductors work well for the steady-state load condition of 3 Amp. But during the turn-on transient, that current can go significantly above that nominal level. At that time, the instantaneous inductance of the hard-saturating device collapses, resulting in even larger current spikes in each switching interval. Note in the waveforms on the left: The soft-saturation inductance drops to 14uH minimum during the transient, whereas the hard-saturation inductance crashes to near 2uH, or only 10% of its nominal value!</p> About text formats Tags Buck Power Stageinductance collapseCoilcraftXAL6060-223 Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
Copy of Compare Soft Saturation vs. Regular Inductor - Switching - on Sun, 04/21/2024 - 12:20 Designer0 × Member for 4 years 3 months 0 designs 0 groups https://explore.partquest.com/node/647824 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/647824"></iframe> Title Description <p>This design shows the importance of choosing the right inductor size and type, to avoid saturation-induced current spikes during operating transients. In this case, the start-up transient in two nearly identical open-loop buck power stages (12V -> 3V) is examined. The only difference is that the top circuit is using an inductor calibrated to a Coilcraft XAL6060-223 (22uH), which has "soft saturation" behavior. The bottom circuit is using a similarly sized inductor, but with a more typical "hard saturation" characteristic.</p> <p>Both inductors work well for the steady-state load condition of 3 Amp. But during the turn-on transient, that current can go significantly above that nominal level. At that time, the instantaneous inductance of the hard-saturating device collapses, resulting in even larger current spikes in each switching interval. Note in the waveforms on the left: The soft-saturation inductance drops to 14uH minimum during the transient, whereas the hard-saturation inductance crashes to near 2uH, or only 10% of its nominal value!</p> About text formats Tags Buck Power Stageinductance collapseCoilcraftXAL6060-223 Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
Copy of Compare Soft Saturation vs. Regular Inductor - Switching - on Sun, 04/21/2024 - 12:17 Designer0 × Member for 4 years 3 months 0 designs 0 groups https://explore.partquest.com/node/647823 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/647823"></iframe> Title Description <p>This design shows the importance of choosing the right inductor size and type, to avoid saturation-induced current spikes during operating transients. In this case, the start-up transient in two nearly identical open-loop buck power stages (12V -> 3V) is examined. The only difference is that the top circuit is using an inductor calibrated to a Coilcraft XAL6060-223 (22uH), which has "soft saturation" behavior. The bottom circuit is using a similarly sized inductor, but with a more typical "hard saturation" characteristic.</p> <p>Both inductors work well for the steady-state load condition of 3 Amp. But during the turn-on transient, that current can go significantly above that nominal level. At that time, the instantaneous inductance of the hard-saturating device collapses, resulting in even larger current spikes in each switching interval. Note in the waveforms on the left: The soft-saturation inductance drops to 14uH minimum during the transient, whereas the hard-saturation inductance crashes to near 2uH, or only 10% of its nominal value!</p> About text formats Tags Buck Power Stageinductance collapseCoilcraftXAL6060-223 Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
Copy of Compare Soft Saturation vs. Regular Inductor - Switching - on Tue, 03/19/2024 - 17:11 Designer0 × Member for 4 years 3 months 0 designs 0 groups https://explore.partquest.com/node/643223 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/643223"></iframe> Title Description <p>This design shows the importance of choosing the right inductor size and type, to avoid saturation-induced current spikes during operating transients. In this case, the start-up transient in two nearly identical open-loop buck power stages (12V -> 3V) is examined. The only difference is that the top circuit is using an inductor calibrated to a Coilcraft XAL6060-223 (22uH), which has "soft saturation" behavior. The bottom circuit is using a similarly sized inductor, but with a more typical "hard saturation" characteristic.</p> <p>Both inductors work well for the steady-state load condition of 3 Amp. But during the turn-on transient, that current can go significantly above that nominal level. At that time, the instantaneous inductance of the hard-saturating device collapses, resulting in even larger current spikes in each switching interval. Note in the waveforms on the left: The soft-saturation inductance drops to 14uH minimum during the transient, whereas the hard-saturation inductance crashes to near 2uH, or only 10% of its nominal value!</p> About text formats Tags Buck Power Stageinductance collapseCoilcraftXGL6060-473MEC Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
Copy of Compare Soft Saturation vs. Regular Inductor - Switching - on Tue, 03/19/2024 - 17:11 Designer0 × Member for 4 years 3 months 0 designs 0 groups https://explore.partquest.com/node/643221 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/643221"></iframe> Title Description <p>This design shows the importance of choosing the right inductor size and type, to avoid saturation-induced current spikes during operating transients. In this case, the start-up transient in two nearly identical open-loop buck power stages (12V -> 3V) is examined. The only difference is that the top circuit is using an inductor calibrated to a Coilcraft XAL6060-223 (22uH), which has "soft saturation" behavior. The bottom circuit is using a similarly sized inductor, but with a more typical "hard saturation" characteristic.</p> <p>Both inductors work well for the steady-state load condition of 3 Amp. But during the turn-on transient, that current can go significantly above that nominal level. At that time, the instantaneous inductance of the hard-saturating device collapses, resulting in even larger current spikes in each switching interval. Note in the waveforms on the left: The soft-saturation inductance drops to 14uH minimum during the transient, whereas the hard-saturation inductance crashes to near 2uH, or only 10% of its nominal value!</p> About text formats Tags Buck Power Stageinductance collapseCoilcraftXAL6060-223 Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
Copy of Compare Soft Saturation vs. Regular Inductor - Switching - on Tue, 03/19/2024 - 17:11 Designer0 × Member for 4 years 3 months 0 designs 0 groups https://explore.partquest.com/node/643220 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/643220"></iframe> Title Description <p>This design shows the importance of choosing the right inductor size and type, to avoid saturation-induced current spikes during operating transients. In this case, the start-up transient in two nearly identical open-loop buck power stages (12V -> 3V) is examined. The only difference is that the top circuit is using an inductor calibrated to a Coilcraft XAL6060-223 (22uH), which has "soft saturation" behavior. The bottom circuit is using a similarly sized inductor, but with a more typical "hard saturation" characteristic.</p> <p>Both inductors work well for the steady-state load condition of 3 Amp. But during the turn-on transient, that current can go significantly above that nominal level. At that time, the instantaneous inductance of the hard-saturating device collapses, resulting in even larger current spikes in each switching interval. Note in the waveforms on the left: The soft-saturation inductance drops to 14uH minimum during the transient, whereas the hard-saturation inductance crashes to near 2uH, or only 10% of its nominal value!</p> About text formats Tags Buck Power Stageinductance collapseCoilcraftXAL6060-223 Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
Copy of Compare Soft Saturation vs. Regular Inductor - Switching - on Fri, 01/19/2024 - 20:14 User-1705714372Designer253319 × User-1705714372 Member for 3 months 1 designs 1 groups Welcome to the community!! https://explore.partquest.com/node/630778 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/630778"></iframe> Title Description <p>This design shows the importance of choosing the right inductor size and type, to avoid saturation-induced current spikes during operating transients. In this case, the start-up transient in two nearly identical open-loop buck power stages (12V -> 3V) is examined. The only difference is that the top circuit is using an inductor calibrated to a Coilcraft XAL6060-223 (22uH), which has "soft saturation" behavior. The bottom circuit is using a similarly sized inductor, but with a more typical "hard saturation" characteristic.</p> <p>Both inductors work well for the steady-state load condition of 3 Amp. But during the turn-on transient, that current can go significantly above that nominal level. At that time, the instantaneous inductance of the hard-saturating device collapses, resulting in even larger current spikes in each switching interval. Note in the waveforms on the left: The soft-saturation inductance drops to 14uH minimum during the transient, whereas the hard-saturation inductance crashes to near 2uH, or only 10% of its nominal value!</p> About text formats Tags Buck Power Stageinductance collapseCoilcraftXAL6060-223 Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
Copy of Compare Soft Saturation vs. Regular Inductor - Switching - on Mon, 01/27/2020 - 10:09 tichbobyDesigner229238 × tichboby Member for 4 years 2 months 1 designs 1 groups Add a bio to your profile to share information about yourself with other SystemVision users. https://explore.partquest.com/node/279344 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/279344"></iframe> Title Description <p>This design shows the importance of choosing the right inductor size and type, to avoid saturation-induced current spikes during operating transients. In this case, the start-up transient in two nearly identical open-loop buck power stages (12V -> 3V) is examined. The only difference is that the top circuit is using an inductor calibrated to a Coilcraft XAL6060-223 (22uH), which has "soft saturation" behavior. The bottom circuit is using a similarly sized inductor, but with a more typical "hard saturation" characteristic.</p><p>Both inductors work well for the steady-state load condition of 3 Amp. But during the turn-on transient, that current can go significantly above that nominal level. At that time, the instantaneous inductance of the hard-saturating device collapses, resulting in even larger current spikes in each switching interval. Note in the waveforms on the left: The soft-saturation inductance drops to 14uH minimum during the transient, whereas the hard-saturation inductance crashes to near 2uH, or only 10% of its nominal value!</p> About text formats Tags Buck Power Stageinductance collapseCoilcraftXAL6060-223 Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
Coilcraft AC impedance simplified DarrellDesigner10 × Darrell Member for 10 years 5 months 624 designs 10 groups Big fan of VHDL-AMS https://explore.partquest.com/node/269430 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/269430"></iframe> Title Description <p>This compares the real part of the impedance, as a function of frequency, for the Coilcraft model (on the left), compared to a generic resistor/inductor model (in the middle), and a series/parallel combination (on the right),</p><p>By stimulating the circuit with a current source, the circuit impedance is equal to the voltage across the device (Z=V/I; I=1, therefore Z=V).</p> About text formats Tags Coilcraftinductors Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -