Techniques to reduce the effect of pad asymmetry and signal routing on resolution of PWM or PFM signals
US11881861B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2022 |
| Grant date | Jan 23, 2024 |
| Priority date | — |
| Expiry date | Jul 29, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2005/00136
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Some examples relate to a system including a pulse modulation (PM) circuit having a PM input and a PM output. The system also includes a load circuit having a load circuit input, and an I/O pad coupling the PM output to the load circuit input. An asymmetry detection circuit has a first asymmetry detection (AD) input coupled to the PM output via a first feedback path, a second AD input coupled to an output node of the I/O pad via a second feedback path, and an AD output coupled to the PM input of the pulse modulation circuit via a control path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.