Direction indicator circuit for controlling a direction indicator in a vehicle
US9162615B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2013 |
| Grant date | Oct 20, 2015 |
| Priority date | — |
| Expiry date | Sep 24, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60Q1/382
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A direction indicator circuit for controlling a direction indicator may include: a first terminal for connecting to a supply voltage terminal; a second terminal for connecting to a direction indicator switch and a lighting means; a third terminal for connecting to a capacitor; wherein the direction indicator circuit is designed to provide the lighting means with a current during an on state and with no current during an off state, wherein the duration of the on state and the duration of the off state are determined by a voltage at the capacitor; wherein the direction indicator circuit has a first and a second circuit, wherein the capacitor provides the supply voltage for the first and second circuits during the on state; wherein the current which flows through the first circuit has a negative temperature coefficient, and the current which flows through the second circuit has a positive temperature coefficient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.