| ??? 12/01/06 14:53 Read: times |
#128842 - Ohmic losses Responding to: ???'s previous message |
Erik said:
Ferrites tend to be less inductance the higher the current. The point is some inductance. Exactly! What a soft ferrite bead adds is ohmic losses, which increase at high frequencies. If you have a look at the impedance versus frequency plot you can hardly speak of true inductance at the high frequencies. It's a mix of a bit inductance and lots of ohmic losses. At higher currents the impedance decreases due to saturation effects of the permeability of soft ferrite material. Kai |
| Topic | Author | Date |
| Battery mcu noise | 01/01/70 00:00 | |
| have you tried extra decoupling such as | 01/01/70 00:00 | |
| decoupling | 01/01/70 00:00 | |
| The point is some inductance. | 01/01/70 00:00 | |
| Ohmic losses | 01/01/70 00:00 | |
| Are chargable battries too noisy? | 01/01/70 00:00 | |
| Hardly | 01/01/70 00:00 | |
| Noisey rechargable batteries? | 01/01/70 00:00 | |
| charger is very simple | 01/01/70 00:00 | |
| that is too scary | 01/01/70 00:00 | |
| Here it comes | 01/01/70 00:00 | |
| Do you want to say... | 01/01/70 00:00 | |
Do you want to say | 01/01/70 00:00 |