Fast turn-off circuit arrangement
US6377107B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 12, 2000 |
| Grant date | Apr 23, 2002 |
| Priority date | — |
| Expiry date | Jul 12, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/0036
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit arrangement having at least one electric main switch (T1) with a reference electrode (E), a control electrode (B), and a work electrode (C). A recovery diode (D1; D2) is connected antiparallel to the main flow direction of each main switch (T1). In order to speed up the switch-off process and in particular to reduce the attendant power loss, each main switch (T1) is assigned an electric auxiliary switch (T11; T22), whose work electrode is connected to the control electrode (B) of the associated main switch (T1) and whose reference electrode is connected to the reference electrode (E) of the associated main switch (T1). The capacitor (C11) is disposed between the control electrode of the auxiliary switch (T11; T22) and the work electrode (C) of the associated main switch (T1). A discharge unit (D11) is disposed between the control electrode and the reference electrode of the auxiliary switch in such a way that the capacitor (C11) can be discharged during the transition of the main switch (T1) from the OFF state to the ON state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.