Comparator with controlled current supply capacity
US9531366B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 22, 2015 |
| Grant date | Dec 27, 2016 |
| Priority date | — |
| Expiry date | May 22, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K5/249
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A comparator includes an input-stage circuit that sets, in a first operating state, two voltage signals in a first voltage state, and changes, in a second operating state, the two voltage signals from the first voltage state to a second voltage state at different speeds, a latch-stage circuit that includes two field effect transistors and two inverters, the two field effect transistors receiving the two voltage signals at control nodes and disposed between two output nodes and a predetermined potential, the two inverters cross-coupled between the two output nodes and placed in an inactive state in the first operating state and in an active state in the second operating state, and a control circuit that controls current capacities in two paths through which drive voltages are applied to the two inverters, causing the current capacities to be different during at least part of a period of the second operating state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.