Voltage divider in thin- or thick-film technology
US4531111A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 1983 |
| Grant date | Jul 23, 1985 |
| Priority date | — |
| Expiry date | Jul 6, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01C17/24
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A calibratable voltage divider made by thin-film or thick-film technology formed by a flat film is an ohmic voltage divider resistor connected to have current flow through it. At least one tap is provided to tap off a desired divider voltage. The ohmic voltage divider resistor includes a single, coherent first resistance zone (10), which has one area for supplying current and another for taking current away, each being connected with a respective connection conductor (11, 12). The tap is made in the form of a second resistance zone (13) connected with the first resistance zone (10) between the current supply, and current drainage areas, and a take-off electrode (14) is attached to the second resistance zone (13). As needed, one or two cuts (16, 17), which intersect the equipotential lines are made to partially separate the second resistance (13) from the resistor (10) zone extended far enough that the potential attains the desired value at the take-off electrode (14) of the tap. The cut is so placed with respect to the coherent resistance zone that its length, or extent, hardly affects the resistance of the coherent zone between the current supply and drainage areas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.