??? 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 |