Compare Soft Saturation vs. Regular Inductor - Switching Designer 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 -
Test Duncan McCance s-parameter model Designer https://explore.partquest.com/node/693405 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/693405"></iframe> Title Description 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 forETQP4M220KVC - on Thu, 04/10/2025 - 07:51 Designer https://explore.partquest.com/node/693033 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/693033"></iframe> Title Description <p>この回路は、過渡動作における磁気飽和による電流スパイクを回避するために、適切なインダクタのタイプを選択することの重要性を示しています。</p> <p>ほぼ同一の3つのダウンコンバータ回路（12V→3V）における起動時の過渡現象を解析しています。<br> 唯一の違いは、上２つの回路では緩やかな磁気飽和特性を持つ Panasonic Industry ETQP4M220KVC （22uH）を使用していることです。（最上位がS-parameterモデル、真ん中は、SPICEモデルを使用）<br> 最下部の回路では同様のサイズの汎用のインダクタモデルを使用していますが、より典型的な急峻な飽和特性を持ったGENERICなデータシートモデルを利用しています。</p> <p>どちらのインダクタも、定常状態の負荷条件である3アンペアではうまく機能します。しかし、ターンオン過渡時には、電流が公称レベルを大幅に上回り、下部のインダクタンスは瞬時に崩壊し、各スイッチング間隔でさらに大きな電流スパイクが発生します。 左側の赤色の波形に注目。<br> 過渡現象の間、急峻な飽和特性を持ったインダクタンスは2uH近くまで急落し、公称値のわずか10%にまで落ち込んでいます。右側の茶色の波形に注目。</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 forETQP4M220KVC - on Fri, 02/28/2025 - 12:26 Designer https://explore.partquest.com/node/691636 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/691636"></iframe> Title Description <p>この回路は、過渡動作における磁気飽和による電流スパイクを回避するために、適切なインダクタのタイプを選択することの重要性を示しています。</p> <p>ほぼ同一の2つのダウンコンバータ回路（12V→3V）における起動時の過渡現象を解析しています。<br> 唯一の違いは、上部の回路では緩やかな磁気飽和特性を持つ Panasonic Industry ETQP4M220KVC （22uH）を使用していることです。下部の回路では同様のサイズの汎用のインダクタモデルを使用していますが、より典型的な急峻な飽和特性を持ったモデルです。</p> <p><br> どちらのインダクタも、定常状態の負荷条件である3アンペアではうまく機能します。しかし、ターンオン過渡時には、電流が公称レベルを大幅に上回り、下部のインダクタンスは瞬時に崩壊し、各スイッチング間隔でさらに大きな電流スパイクが発生します。 赤色の波形に注目。<br> 過渡現象の間、急峻な飽和特性を持ったインダクタンスは2uH近くまで急落し、公称値のわずか10%にまで落ち込んでいます。</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 -
Test S-Parameter model of ETQP4M220KVC Designer https://explore.partquest.com/node/691625 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/691625"></iframe> Title Description <p>この回路は、過渡動作における磁気飽和による電流スパイクを回避するために、適切なインダクタのタイプを選択することの重要性を示しています。</p> <p>ほぼ同一の2つのダウンコンバータ回路（12V→3V）における起動時の過渡現象を解析しています。<br> 唯一の違いは、上部の回路では緩やかな磁気飽和特性を持つ Panasonic Industry ETQP4M220KVC （22uH）を使用していることです。下部の回路では同様のサイズの汎用のインダクタモデルを使用していますが、より典型的な急峻な飽和特性を持ったモデルです。</p> <p><br> どちらのインダクタも、定常状態の負荷条件である3アンペアではうまく機能します。しかし、ターンオン過渡時には、電流が公称レベルを大幅に上回り、下部のインダクタンスは瞬時に崩壊し、各スイッチング間隔でさらに大きな電流スパイクが発生します。 赤色の波形に注目。<br> 過渡現象の間、急峻な飽和特性を持ったインダクタンスは2uH近くまで急落し、公称値のわずか10%にまで落ち込んでいます。</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 Designer 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 Designer 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 -
Compare Soft Saturation vs. Regular Inductor - Switching Designer https://explore.partquest.com/node/253466 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/253466"></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 -
Mendix SVG Testing - Compare Soft Saturation vs. Regular Inductor - Switching Designer https://explore.partquest.com/node/245055 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/245055"></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 -
Compare Soft Saturation vs. Regular Inductor - Switching Designer https://explore.partquest.com/node/239406 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/239406"></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 -
