Apparatus and method for providing multiple output voltages for a powered device in a power-over-data-line (PODL) or power-over-coax (POC) system
A single-inductor multiple-output (SIMO) switching converter with time-multiplexed current flow addresses the challenge of supplying multiple voltages in PoC/PoDL systems, reducing space and cost, and enhancing EMC and stability in vehicle environments.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- ROBERT BOSCH GMBH
- Filing Date
- 2025-11-03
- Publication Date
- 2026-05-21
AI Technical Summary
Existing power-over-coax (PoC) and power-over-data-line (PoDL) systems in vehicles face challenges in supplying multiple operating voltages to sensor components due to the need for separate coils and increased space and cost, while also requiring efficient electromagnetic compatibility (EMC) in vehicle environments.
Employing a single-inductor multiple-output (SIMO) switching converter with time-multiplexed current flow to generate multiple operating voltages using a single coil, optimizing switching frequencies, and integrating power sourcing equipment (PSE) for stable input voltage adjustment.
Significantly reduces sensor board space and cost, improves EMC, and ensures stable voltage supply despite load changes, while minimizing electromagnetic interference.
Smart Images
Figure EP2025081642_21052026_PF_FP_ABST