Apparatus for analog simulation of a circuit
US4835726A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 26, 1986 |
| Grant date | May 30, 1989 |
| Priority date | — |
| Expiry date | Jun 26, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F30/367
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus simulates an electronic circuit having a number of circuit elements, each being coupled to an associated set of nodes, a pair of which are capable of carrying a current therebetween, such as transistors. The apparatus has a selection device to select a circuit element to be simulated. A first memory is coupled with the selection device for storing the characteristics of each of the transistors. A transfer device transfers the characteristics from the first memory to a first register. A second memory stores the voltage present at each of the nodes, while a retrieval device retrieves the nodal voltages from the second memory and transfers them to a second register. Coupled to the first and second registers is a computation unit to ascertain the current flowing between the current carrying nodes and the subsequent change of voltage at those nodes. The apparatus carries out the simulation over a series of incremental time steps thereby providing an analog simulation of the circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.