Invention Grant
- Patent Title: Current sense accuracy improvement for MOSFET RDS (on) sense based voltage regulator by adaptive temperature compensation
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Application No.: US14924644Application Date: 2015-10-27
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Publication No.: US10338669B2Publication Date: 2019-07-02
- Inventor: Shiguo Luo , Kejiu Zhang , Feng-Yu Wu
- Applicant: DELL PRODUCTS, L.P.
- Applicant Address: US TX Round Rock
- Assignee: Dell Products, L.P.
- Current Assignee: Dell Products, L.P.
- Current Assignee Address: US TX Round Rock
- Agency: Isidore PLLC
- Main IPC: G06F1/32
- IPC: G06F1/32 ; G06F1/20 ; G06F1/3296 ; G06F1/3206

Abstract:
An information handling system (IHS) includes temperature-compensated power control by a voltage regulation (VR) module to: (i) receive a monitored current (Imon) value from a current sensor integrated into the VR module; (ii) receive a temperature value from the temperature sensor also integrated into the VR module; (iii) determine a temperature-compensated Imon value based at least in part on the Imon value, the temperature value, and an empirically-derived temperature coefficient defined at the Imon value and the temperature value; and (iv) control the voltage-regulated power at least in part based on the temperature-compensated Imon value. The empirically-derived temperature coefficient adjusts for nonlinear portions of temperature coupling relationship between a portion of an integrated circuit (IC) die that can include the current sensor and the temperature sensor and a temperature experienced by by active portion of VR module.
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