Ramp generator for a constant on-time DC-DC converter

A ramp generator for a constant on-time DC-DC converter, wherein the ramp generator is configured to reduce DC offset and smooth transitions between conduction modes. The ramp voltage generator includes a common voltage generator suitable for generating a common voltage; a first ramp voltage generat...

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Bibliographische Detailangaben
Hauptverfasser:	Chen, Jingyuan, Du, Jialun, Chen, Hal, Fan, Jiwei, Ma, Yingqian
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION
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Beschreibung
Zusammenfassung:	A ramp generator for a constant on-time DC-DC converter, wherein the ramp generator is configured to reduce DC offset and smooth transitions between conduction modes. The ramp voltage generator includes a common voltage generator suitable for generating a common voltage; a first ramp voltage generation block suitable for generating a first ramp voltage responsive to a first switching signal and a control signal, wherein the first switching signal resets one or more valley points of the first ramp voltage to one or more valley points of the common voltage; and a second ramp voltage generation block suitable for generating a second ramp voltage responsive to a second switching signal, the first ramp voltage, and the control signal.