Zener diode voltage reference circuit
US10955868B2 · kind B2 · utility
1Cited by
10References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 27, 2019 |
| Grant date | Mar 23, 2021 |
| Priority date | — |
| Expiry date | Feb 27, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F3/267
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An integrated circuit includes a voltage reference circuit including a Zener diode having a first terminal coupled to a first node and a second terminal coupled to a first voltage supply terminal. A proportional to absolute temperature (PTAT) circuit is coupled at the first node and configured to generate a PTAT current. A PTAT compensation circuit is coupled at the first node. The PTAT compensation circuit includes a first current mirror having a first branch coupled at the first node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.