METHOD AND APPARATUS FOR HIGH-EFFICIENCY SUPPLY INTEGRITY WITH FAST AND LARGE LOAD VARIATION

An apparatus includes a boost converter including a compensation circuit to implement a switching scheme and partitioned into multiple circuits and a calculator circuit configured to determine a voltage to be applied to the compensation circuit. The multiple circuits each includes a capacitor and a...

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Bibliographische Detailangaben
Hauptverfasser: KU, I-Ning, LI, Shengyuan, JIANG, Xicheng
Format: Patent
Sprache:eng
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Zusammenfassung:An apparatus includes a boost converter including a compensation circuit to implement a switching scheme and partitioned into multiple circuits and a calculator circuit configured to determine a voltage to be applied to the compensation circuit. The multiple circuits each includes a capacitor and a voltage is applicable to pre-charge the capacitors to a voltage corresponding to an error voltage, as determined by the calculator circuit. The pre-charged capacitors can enable an immediate settling of the error voltage to achieve an instantaneous response of the compensation circuit. Beneficially, the apparatus can drive a power stage circuit to supply power to a load (e.g., LED) without overshoot or undershoot.