Driver circuitry
US11396031B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2020 |
| Grant date | Jul 26, 2022 |
| Priority date | — |
| Expiry date | Jul 14, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/016
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Driver circuitry for driving an electromechanical load with a drive output signal based on a digital reference signal at a first sample rate, the drive output signal inducing a first electrical quantity at the electromechanical load, the driver circuitry comprising: a function block configured, based on said first electrical quantity, to digitally determine at a second sample rate higher than the first sample rate an adjustment signal indicative of a second electrical quantity which would be induced at a target output impedance of the driver circuitry due to said first electrical quantity; and a driver configured to generate the drive output signal based on the reference signal and the adjustment signal to cause the drive output signal to behave as if an output impedance of the driver circuitry has been adjusted to comprise the target output impedance, wherein the first electrical quantity is a current and the second electrical quantity is a voltage, or vice versa.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.