Charge injection compensation circuit
US10277223B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2016 |
| Grant date | Apr 30, 2019 |
| Priority date | — |
| Expiry date | Dec 6, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/0054
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A charge injection compensation circuit compensates for charge injection by a field-effect transistor (FET) switch regardless of a supply voltage. The charge injection compensation circuit includes a main switch that injects charge into an electronic circuit when switched off, and a charge storage device that stores the injected charge until it can be dissipated to a dissipating node. Upon the main switch being controlled to switch off, a pulse generator circuit controls a charge storage switch to switch on to transfer the charge injected from the main switch to the charge storage device and then switch off. A dissipation circuit dissipates the charge from the charge storage device to a dissipating node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.