Switch-mode power supply (SMPS) with auto-tuning using...

Electrical transmission or interconnection systems – Plural load circuit systems – Control of current or power

Reexamination Certificate

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C307S038000, C361S689000, C323S282000

Reexamination Certificate

active

07622820

ABSTRACT:
A switch-mode power supply (SMPS) with auto-tuning using limit-cycle oscillation response evaluation provides optimized performance with reduced capacitance and inductance requirements for a given design. During operation of the SMPS, parameters of the converter are extracted, and the feedback and/or feed-forward compensation is adjusted to either hold the loop bandwidth of the converter near the critical bandwidth of the output capacitors, or maintain output voltage transients within a specified limit. The compensator response is either periodically updated, or is updated in response to an event, such as detection of a transient voltage spike having a characteristic that exceeds one or more predetermined thresholds.

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