Leistungssensor auf einem Chip zur Durchführung von Laufzeit-Leistungs-/spannungs-/stromverwaltung

Details

Veröffentlichungs-Nr.

EP4818851

Anmeldetag

15. Januar 2026

Veröffentlichung

7. Oktober 2026

Rechtsraum

EP

Abstract

An on-die power sensor (100) includes a digital current sensor (10), a digital voltage sensor (20) and a power calculator (40) for performing run-time power/voltage/current management. The digital current sensor (10) measures speed counts of two identical ring oscillators (ROSC1, ROSC2), acquire an overall delta speed count between the two ring oscillators (ROSC1, ROSC2), converts the overall delta speed count to a voltage drop based on a trimmed slope of a first lookup table, and convert the voltage drop to a run-time current based on a trimmed DCR of a second lookup table. The digital voltage sensor (20) records values of the speed counts measured by the digital current sensor (10) to quantify a run-time voltage based on a third lookup table. The power calculator (40) obtains a run-time power by multiplying the run-time current and the run-time voltage.

Anmelder

Firma

MediaTek Inc.

Land

🇹🇼 Taiwan