Current sense demodulator
US4562386A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 26, 1984 |
| Grant date | Dec 31, 1985 |
| Priority date | — |
| Expiry date | Jan 26, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/385
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for use with an amplifier regulates the current through a load according to a drive signal having first and second states and comprises switchless sensing means and polarity correction means. The switchless sensing means provides a sense signal continuously representative of the magnitude of the current through the load without the use of switching circuitry. The polarity correction means is directly coupled to the sensing means and receives the sense signal and is responsive to the status of the drive signal for providing an analog signal continuously representative of both the instantaneous magnitude and polarity of the current through the load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.