Current source for rapid switching and reduced oscillatory transients
US5854569A · kind A · utility
12Cited by
10References
4Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 31, 1997 |
| Grant date | Dec 29, 1998 |
| Priority date | — |
| Expiry date | Jul 31, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/0018
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A current source and a semiconductor integrated circuit device for suppressing fluctuations occured in an output current of current sources composed MOS transistors for switching. A back gate voltage of MOS transistors M1, M3 for switching connected in series to a constant current generator 9 is supplied through a power source line 5d independent of a power source line 4d which supplies a driving voltage. The stabilization of the back gate voltage leads the operation of the MOS transistors M1, M3 to be stabilized, thereby suppressing the fluctuations occured in the output currents I.sub.out and I.sub.out current sources.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.