Features:
Nanocrystalline cores for magnetic amplifiers(Mag-Amp), are heat treated by longitudinal magnetic field, have high saturation flux density(Bs), high rectangle ratio(Br/Bm), low coercivity(Hc) and high curie temperature.
Mag-Amp used nanocrystalline core has virtues of high efficiency, low temperature rise, small reset current, large working current, high working temperature.
Applications:
> Desktop personal computer power supply
> Server computer power supply
> Switched mode power supply
Characteristics:
> High saturation flux density Bs=1.25T – Small size, lower turns
> High rectangle ratio Br/Bm≥94% – Low dead angle voltage, large working current
> Low coercivity Hc≤36A/M @ 100KHz, 80A/M – Low reset current, high efficiency
Specifications:
Customers made and customers design are available.
| Part No. | Core dimensions | Case dimensions | Effictive cross section |
Mean path length |
Saturation Flux | ||||
| od | id | h | OD | ID | H | AFe | lFe | 2Φm | |
| mm | mm | mm | mm | mm | mm | cm2 | cm | μWb | |
| KMN100705Z | 10 | 7 | 4.5 | 12 | 5 | 6.8 | 0.053 | 2.67 | 12.4 |
| KMN120803Z | 12 | 8.4 | 3.2 | 14.7 | 5.9 | 5.7 | 0.045 | 3.20 | 10.6 |
| KMN120804Z | 11.8 | 8.7 | 4.2 | 13.9 | 6.8 | 6.0 | 0.051 | 3.22 | 11.9 |
| KMN120805Z | 12 | 8 | 4.5 | 14.7 | 6.2 | 6.8 | 0.070 | 3.14 | 16.5 |
| KMN151005Z | 15 | 10 | 4.5 | 17 | 8 | 7.1 | 0.088 | 3.93 | 20.6 |
| KMN191505Z | 19 | 15 | 5 | 21 | 13 | 6.6 | 0.078 | 5.34 | 18.3 |
These cores are our standard cores, custom-made cores are availabe.
We can also custom made Co-based amorphous cores for magnetic amplifier. Co-base mag-amp core has more lower coercivity and higher efficiency, suitable for high-end computer power supplies.