Verbesserte Erzeugung einer Nichtlinearen Schwimmenden Schiene

Details

Veröffentlichungs-Nr.

EP4753138

Anmeldetag

6. November 2025

Veröffentlichung

3. Juni 2026

Rechtsraum

EP

Abstract

A floating reference generation circuit for a SMPS includes core biasing, driver logic, and transient biasing blocks. The core biasing block generates temperature and process-tracking reference voltages. The driver logic block uses these references to generate a floating reference voltage through level-shifting and output circuits, with compensation capacitors improving settling time and stability. The transient biasing block employs a diode-transistor cascade and feedback loops to control transitions between voltage levels while maintaining voltage stress limits. The circuit can be configured as either a floating ground generator or floating supply generator through polarity adaptation of the components. Coordination between floating ground and supply reference signals enables precise timing control of voltage transitions. The open-loop architecture enables stable high-speed operation across varying load and line conditions, while eliminating separate reference generation circuits. Implementation provides improved efficiency and noise isolation for analog components while reducing settling time and maintaining high-voltage tolerance.

Anmelder

Firma

STMicroelectronics International N.V.

Land

🇨🇭 Schweiz