Dual LED drive circuit
US10579168B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2017 |
| Grant date | Mar 3, 2020 |
| Priority date | — |
| Expiry date | Nov 4, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04108
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A circuit, includes a first node, a positive voltage generator electrically connected to the first node, a negative voltage generator electrically connected to the first node in parallel with the positive voltage generator, a second node, an electrical connector electrically connecting the first node to the second node, a first light emitting diode (LED) electrically intermediate the second node and ground, and a second LED electrically intermediate the second node and ground in parallel with the first LED. The first LED is configured to activate based on the negative voltage generator supplying a negative voltage to the second node via the first node. The second LED is configured to activate based on the positive voltage generator supplying a positive voltage to the second node via the first node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.