Generator of periodial signals, in particular for switch-mode power supplies
US4801816A · kind A · utility
23Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1988 |
| Grant date | Jan 31, 1989 |
| Priority date | — |
| Expiry date | Feb 22, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K4/00
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
This generator of periodic signals with exponential edges, which may be integrated at low cost, comprises a current source circuit connected to a capacitor and to a resistive element to supply them with currents having mutually correlated amplitudes, an amplifier interposed between the capacitor and the resistive element and adapted to maintain the voltage drop on the resistive element proportional to the voltage drop on the capacitor, and a switch device, connected in parallel to the capacitor and periodically switched off to allow the discharge of the capacitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.