Device and process for protection against excessive voltage and/or current in systems having USB connections and the like
US9153954B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2012 |
| Grant date | Oct 6, 2015 |
| Priority date | — |
| Expiry date | Jun 1, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H9/041
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An apparatus is provided to electrically protect a circuit for USB protection against excessive voltage and/or current such as ground loop damage. A circuit is connected between electrical components where at least one of the connections is a USB connection. There is a possibility for the ground points of the electrical components to be at different voltage potentials and can create a ground loop. The apparatus can include a voltage limiting circuit connected to circuit lines which connect to the USB connection, and circuit breakers or resistors can be connected to the circuit lines between the USB connection and the connection to the other electrical component. In some aspects, the connections at either end of the circuit can all be USB connections. The components of the apparatus protect the connected electrical components from receiving more power than they can tolerate, and protect a user of the electrical components from injury caused by excess power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.