Voltage level shifting device
US7504873B2 · kind B2 · utility
3Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2006 |
| Grant date | Mar 17, 2009 |
| Priority date | — |
| Expiry date | Apr 7, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/018571
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A voltage level shifting device includes an activation or deactivation control input, first and second output nodes, a capacitor coupled between the output nodes, a high-voltage transistor for charging the capacitor, a high-voltage transistor for discharging the capacitor, a comparator which generates a charge blocking signal and a discharge signal, and a control device which is operative to cause the charging transistor to be blocked when a charge blocking signal is generated and to turn on the discharging transistor upon receipt of a deactivation control signal and when a discharge signal is generated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.