Voltage reference generator for quickly charging capacitive loads
US5859526A · kind A · utility
10Cited by
5References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 6, 1997 |
| Grant date | Jan 12, 1999 |
| Priority date | — |
| Expiry date | Jun 6, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F3/242
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A voltage reference generator includes a voltage source and a differential amplifier. The voltage source supplies a stable voltage reference to a positive input of the differential amplifier which is configured as a follower having its output looped back to its negative input. The negative feedback loop is a variable-resistance loop that is controlled by the output of the differential amplifier. The variable-resistance feedback loop transiently imposes open-loop operation when the voltage reference generator is turned on so as to provide high current to the output before imposing closed-loop operation in follower mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.