专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20140015446A1 METHOD AND APPARATUS FOR CURRENT DERATING WITH INTEGRATED TEMPERATURE SENSING 有权
标题翻译：用于一体化温度传感的电流方法和装置
公开(公告)号：US20140015446A1
公开(公告)日：2014-01-16
申请号：US13548467
申请日：2012-07-13
申请人： Xinli Peng , Troy Stockstad , Ricardo T. Goncalves
发明人： Xinli Peng , Troy Stockstad , Ricardo T. Goncalves
IPC分类号： H05B37/02 , H03K3/00
CPC分类号： G06F1/206 , G06F1/3215 , G06F1/3296 , H05B33/0854 , H05B33/089 , Y02D10/172
摘要： A method and apparatus for derating current and for derating current for a camera flash. The method comprises monitoring a local junction temperature of a module. The local junction temperature is converted into a local junction current. The local junction current is then compared with a reference current, which is independent of temperature. After the current comparison and subtraction is made, a derate control current is obtained to generate the LED reference current. After the temperature crosses the temperature threshold, the derate control current is derated. Both the temperature threshold and current derate slope are programmable and precisely controlled. The LED output current is regulated and proportional to the LED reference current. If the local junction temperature is greater than the temperature threshold, the LED output current is derated at the moment of the camera flash to avoid thermal overload.
摘要翻译：一种用于降低电流和用于相机闪光灯的降额电流的方法和装置。该方法包括监测模块的局部结温。局部结温转换为局部结电流。然后将局部结电流与独立于温度的参考电流进行比较。在进行当前比较和减法之后，获得降额控制电流以产生LED参考电流。温度超过温度阈值后，降额控制电流降额。温度阈值和电流降额斜率均可编程且精确控制。 LED输出电流被调节并与LED参考电流成比例。如果局部结温大于温度阈值，则在相机闪光时，LED输出电流会降额，以避免热过载。

2. 发明授权

US09081555B2 Method and apparatus for current derating with integrated temperature sensing 有权
标题翻译：具有集成温度传感的电流降额的方法和装置
公开(公告)号：US09081555B2
公开(公告)日：2015-07-14
申请号：US13548467
申请日：2012-07-13
申请人： Xinli Peng , Troy Stockstad , Ricardo T. Goncalves
发明人： Xinli Peng , Troy Stockstad , Ricardo T. Goncalves
IPC分类号： H05B33/08 , G06F1/20 , G06F1/32
CPC分类号： G06F1/206 , G06F1/3215 , G06F1/3296 , H05B33/0854 , H05B33/089 , Y02D10/172
摘要： A method and apparatus for derating current and for derating current for a camera flash. The method comprises monitoring a local junction temperature of a module. The local junction temperature is converted into a local junction current. The local junction current is then compared with a reference current, which is independent of temperature. After the current comparison and subtraction is made, a derate control current is obtained to generate the LED reference current. After the temperature crosses the temperature threshold, the derate control current is derated. Both the temperature threshold and current derate slope are programmable and precisely controlled. The LED output current is regulated and proportional to the LED reference current. If the local junction temperature is greater than the temperature threshold, the LED output current is derated at the moment of the camera flash to avoid thermal overload.
摘要翻译：一种用于降低电流和用于相机闪光灯的降额电流的方法和装置。该方法包括监测模块的局部结温。局部结温转换为局部结电流。然后将局部结电流与独立于温度的参考电流进行比较。在进行当前比较和减法之后，获得降额控制电流以产生LED参考电流。温度超过温度阈值后，降额控制电流降额。温度阈值和电流降额斜率均可编程且精确控制。 LED输出电流被调节并与LED参考电流成比例。如果局部结温大于温度阈值，则在相机闪光时，LED输出电流会降额，以避免热过载。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式