Circuit arrangement with half-bridge
US6268758A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2000 |
| Grant date | Jul 31, 2001 |
| Priority date | — |
| Expiry date | Apr 5, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/538
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a circuit arrangement having a half-bridge arrangement comprising a first and a second switch (T1;T2), each switch (T1;T2) having, between its operating and reference electrodes, an internal diode (DB1;DB2), which is reverse-connected in parallel with the main current flow direction of the respective switch (T1;T2), and also an internal capacitance (C.sub.OSS 1;C.sub.OSS 2), a series diode (DS1;DS2) being arranged in series with the respective switch (T1;T2) in the main current flow direction in such a way that current can flow in the main current flow direction, and a freewheeling diode (DF1;DF2) being connected in parallel with the respective series circuit formed by the switch (T1;T2) and the series diode (DS1;DS2), and having a load circuit (L;RL), which has at least one inductive component (L) and is connected to the midpoint of the half-bridge arrangement. In order to reduce the failure rate of the series diodes (DS1;DS2), a load-relieving capacitance (CE1;CE2) is connected in parallel with each series diode (PS1;DS2).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.