Electronic device and control method
US12160151B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 28, 2021 |
| Grant date | Dec 3, 2024 |
| Priority date | — |
| Expiry date | Apr 2, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P25/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electronic device for controlling an LRA (Linear Resonant Actuator) includes a signal generator, a driver, a delay unit, a sensor, and a DSP (Digital Signal Processor). The signal generator generates a digital signal. The driver drives the LRA according to the digital signal. The delay unit delays the digital signal for a predetermined time, so as to generate an estimated voltage signal. The sensor detects the current flowing through the LRA, so as to generate a sensing current signal. The DSP controls the resonant frequency or the gain value of the signal generator according to the estimated voltage signal and the sensing current signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.