Reference voltage circuit including transistor
US11899487B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 8, 2022 |
| Grant date | Feb 13, 2024 |
| Priority date | — |
| Expiry date | Jun 8, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/468
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The present invention includes: a first current source, through which a first current is made to flow; a second current source, through which a second current set at a certain ratio to the first current is made to flow; a first current path, which includes a second resistor, a first resistor, and a first bipolar transistor that are connected to the first current source in a sequential manner, and through which the first current is made to flow; a second current path, which includes a third resistor and a 0th bipolar transistor that are connected to the second current source in a sequential manner, and through which the second current is made to flow; an operational amplifier, which controls current amounts of the first current and the second current by an output from an output end, and of which a positive input end is connected to a connection point between the second resistor and the first resistor, and of which a negative input end is connected to a connection point between the third resistor and the 0th bipolar transistor; and a buffer amplifier, which outputs a reference voltage, and of which a positive input end is connected to a connection point between the second current sou…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.