Startup circuit for bandgap voltage reference generator
US6784652B1 · kind B1 · utility
25Cited by
7References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 25, 2003 |
| Grant date | Aug 31, 2004 |
| Priority date | — |
| Expiry date | Feb 25, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F3/30
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A startup circuit for a bandgap voltage reference generator circuit. Monitoring an internal reference voltage of the bandgap voltage reference generator circuit, current flow for the bandgap circuit diodes is initiated following circuit startup, e.g., initial application or DC power. In one embodiment, the monitored bandgap circuit reference voltage is replicated and used to assert and then de-assert a control signal used for initiating the diode current flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.