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US 7,119,629 B2Granted
Synchronized controlled oscillation modulator
AssigneeBang & Olufsen Icepower A/S
InventorsKarsten Nielsen, Jesper Lind Hansen
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Abstract
A synchronized controlled oscillation modulator (SCOM), comprising at least one, Controlled Oscillation Modulator (5), and synchronizing means (1, 6) connected to said COM modulator. The modulator can comprise several COM modulators, and the synchronizing means can be arranged between the COM systems, so that the oscillation modulator signal is used as synchronization signal. The invention provides significant advantages in performance, topological simplification, improved robustness, stability and efficiency compared to prior art.
Claims14
A synchronized controlled oscillation modulator (SCOM), comprising:
- at least one controlled oscillation modulator (COM) having a non-hysteresis comparator, a switching stage and a negative feedback loop adapted to achieve conditions for controlled oscillation of a predetermined frequency by means of at least two poles, and
- a synchronizing device connected to said COM modulator.
Dependencies are inferred from the claim text.