Seamless non-linear voltage regulation control to linear control apparatus and method
US11658570B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 1, 2020 |
| Grant date | May 23, 2023 |
| Priority date | — |
| Expiry date | Feb 26, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H17/0211
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.