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| The SoftSwing topology strengthens our leading position in high tech power electronics. |
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| Features |
- Permits higher switching frequencies by minimized switching losses.
- High switching frequencies permit new applications like high speed or multi pole motors.
- Clearly lower electromagnetic interferences (EMI) by slow switching slopes.
- Little filter expenditure due to lower EMI.
- Compact and light weight design due to low losses and small EMI filters.
- Longer life span by lower component stress.
- Noiseless power electronics by switching frequencies above the audible range.
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| Description |
In semiconductor power stages the energy dissipation is essentially determined by conducting and switching losses. With increasing frequency the switching losses become dominant, since the switching process is executed much more frequently. This circumstance limits the maximum switching frequency, which is limited to approx. 8 kHz with standard converters (see f1 in the illustration).
By using the SoftSwing technology developed by BRUSA, the switching losses are substantially reduced. This permits significantly higher switching frequencies up to 50 kHz (see f2 in the illustration). Apart from lower switching losses, the switching process is much smoother and produces substantially less interfering radiation. The EMC measures are reduced thereby to a minimum.
Nearly missing EMI filters and the low specific losses permit a very high power density.
Moreover there are applications for which high switching frequencies are compulsory. These are in particular high-speed motors (up to 100'000 rpm) and multi pole motors for highest torques. In addition, inductors in power DC/DC converters which are usually quite large, heavy and expensive, can be substituted by much smaller types. |
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Deutsch | English
