Reference voltage generation circuit
US11340647B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 7, 2018 |
| Grant date | May 24, 2022 |
| Priority date | — |
| Expiry date | Nov 7, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/575
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A noise component of a reference voltage is reduced in a circuit that generates a constant reference voltage that does not depend on a power supply voltage or a temperature. A reference voltage generation circuit includes a transistor, a first resistor, a diode, a second resistor, and a control unit. One of both ends of the transistor is connected to an output signal line. The first resistor is connected to another end of the transistor. Both ends of the second resistor are connected to one end of the diode and the output signal line. The control unit controls a potential of the another end of the transistor and a potential of the one end of the diode to the same potential.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.