Current limiting protection circuit
US7567119B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2007 |
| Grant date | Jul 28, 2009 |
| Priority date | — |
| Expiry date | Jan 25, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/573
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A power supply management device including a current limiting protection circuit. The power supply management device may include an output terminal, a first transistor, a replication circuit, a comparator circuit, and a control circuit. The first transistor may provide an output current to the output terminal of the power supply management device. The replication circuit may be connected to the first transistor and may replicate the output current to a separate path to monitor the output current. The comparator circuit may be connected to the replication circuit and may compare the replicated output current to a current reference. The control circuit may be connected to the first transistor and to the comparator circuit. In response to the replicated output current being greater than the current reference, the control circuit may limit the output current the first transistor provides to the output terminal to an amount corresponding to the current reference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.