Managing pulse-width modulation trip signals from multiple sources
US10812060B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 2019 |
| Grant date | Oct 20, 2020 |
| Priority date | — |
| Expiry date | May 29, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/0016
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An integrated communications subsystem (ICSS) includes a pulse-width modulator which drives a power stage, such as a motor. The pulse-width modulator is configured shut off the power stage when the pulse-width modulator receives a trip signal from a logic circuit of the ICSS. The logic circuit can easily be reprogrammed to send a trip signal only when certain error conditions are detected. Moreover, the ICSS contains one or more filters which can adjust the sensitivity of the logic circuit to error signals, enabling the ICSS to distinguish between true errors which require shutdown and glitches, which can be ignored during operation of the ICSS.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.