RMS calculation circuit
US4741002A · kind A · utility
12Cited by
2References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 29, 1987 |
| Grant date | Apr 26, 1988 |
| Priority date | — |
| Expiry date | Jan 29, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H3/0935
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The root mean square value of sensed current within a protected circuit is calculated. A frequency multiplying circuit produces a pulse stream having a frequency proportional to the square of the amplitude of an analog signal representation of the circuit current. A root mean square value over a prescribed interval is developed from the squared current value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.