8.21 shows the B-H curve traced in a ferrite core, initially demagnetized, when a succession of unidirectional pulses are applied. ... This may be done by applying a negative reset pulse between the main pulses or by providing a d.c. or permanent magnet bias to the core.6 ... A steady field or current bias will result in the flux density returning to the value where the minor loop cuts the bias line (b-ba#39; in Fig.
|Title||:||Soft ferrites: properties and applications|
|Author||:||Eric Charles Snelling|