Constant current supply system for a variable resistance load
US5804957A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 13, 1997 |
| Grant date | Sep 8, 1998 |
| Priority date | — |
| Expiry date | Aug 13, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/156
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A constant current supply system for a variable resistance load includes first and second output terminals for applying a predetermined current to a variable resistance load; a constant current circuit connected to the second output terminal for providing the predetermined current to the load; a voltage supply connected to the first terminal for providing a voltage across the terminal and constant current circuit; and a voltage supply control circuit for monitoring the voltage at the second terminal across the constant current circuit and adjusting the voltage supply to maintain the second terminal at a preselected voltage for maintaining the predetermined current to the variable resistance load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.