Slew rate limited inductive load driver
US5194760A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1991 |
| Grant date | Mar 16, 1993 |
| Priority date | — |
| Expiry date | Dec 23, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/166
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A slew rate limited load driver is disclosed with a transistor switch (123) driving a load (125). The transistor switch (123) is controlled by a current from a current amplifier (107) and a current sink (111). The current amplifier (107) is driven from the combination of a source of compensating current (120) and a turn on current source (115). As a command signal (103) transitions, the source of compensating current (120) adds a transitional compensating current to the current derived from the turn on current source (115) and is amplified by the current amplifier (107). The output of the current amplifier (107) is combined with the output of the turn off current sink (111), to control the voltage slew rate to the load (101).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.