Invention Grant
- Patent Title: Seamless non-linear voltage regulation control to linear control apparatus and method
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Application No.: US17009661Application Date: 2020-09-01
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Publication No.: US11658570B2Publication Date: 2023-05-23
- Inventor: Harish Krishnamurthy , Sheldon Weng , Nachiket Desai , Suhwan Kim , Fabrice Paillet
- Applicant: Intel Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Schwabe, Williamson & Wyatt, P.C.
- Main IPC: G06F1/00
- IPC: G06F1/00 ; H02M3/157 ; G06F1/26 ; H02M3/158 ; H03H17/02

Abstract:
A digital control scheme controls an integrator of a PID filter to implement non-linear control of saturating the duty cycle during which the proportional and derivative terms of the PID filter are set to 0 while the integrator and its internal states (previous values or memory) is set to a duty cycle that is the sum of the current nominal duty cycle plus a deltaD. The deltaD is the maximum duty cycle increment that is used to regulate a voltage regulator from ICCmin to ICCmax and is a configuration register that can be set post silicon. An FSM moves from a non-linear all ON state to an open loop duty cycle which maintains the output voltage slightly higher than the required Vref. After a certain period in this open loop, the FSM then ramps down the open loop duty cycle value until the output voltage is close to the Vref.
Public/Granted literature
- US20220069703A1 SEAMLESS NON-LINEAR VOLTAGE REGULATION CONTROL TO LINEAR CONTROL APPARATUS AND METHOD Public/Granted day:2022-03-03
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