High voltage generation and regulation system for digital multilevel nonvolatile memory

A high voltage generator provides high voltage signals with different regulated voltage levels. A charge pump generates the high voltage, and includes a quadrature phase forward and backward Vt-canceling high-voltage self-biasing charge pump with a powerup-assist diode. A high voltage series regulat...

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Bibliographische Detailangaben
Hauptverfasser: KHAN SAKHAWAT M, SAIKI WILLIAM J, TRAN HIEU V
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:A high voltage generator provides high voltage signals with different regulated voltage levels. A charge pump generates the high voltage, and includes a quadrature phase forward and backward Vt-canceling high-voltage self-biasing charge pump with a powerup-assist diode. A high voltage series regulator generates the high voltage supply levels, and includes slew rate enhancement and trimmable diode regulation. A nested loop regulator eliminates shunt regulation.