Voltage reference circuit for providing a predetermined voltage to an active element circuit
US4649291A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 23, 1984 |
| Grant date | Mar 10, 1987 |
| Priority date | — |
| Expiry date | May 23, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/465
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A semiconductor integrated circuit includes a function circuit which has a plurality of active elements and performs a predetermined circuit function and which is coupled between a node and a reference terminal; a potential setting circuit, coupled between a power supply terminal and the above-mentioned node, for setting a potential at this node; and a capacitor, coupled between this node and the reference terminal, for smoothing the potential at this node. The function circuit generates a control signal and a conductance between the power supply terminal and the node is varied in response to this control signal, so that the potential setting circuit keeps the potential at this node within a predetermined range, regardless of the current consumed at the function circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.