-
21.发明申请公开(公告)号：US20170188419A1
公开(公告)日：2017-06-29
申请号：US15216561
申请日：2016-07-21
Inventor： Manuel Gaertner , Sergio Lecce , Giovanni Luca Torrisi
IPC: H05B33/08
CPC classification number: H05B33/0809 , B60Q1/1407 , B60Q11/005 , H05B33/083 , H05B33/0845 , H05B33/0848
Abstract: An integrated device for driving a lighting load, such as a LED, has a first memory element, configured to store a nominal duty-cycle at a nominal supply voltage. An actual voltage acquisition element is configured to detect an actual supply voltage. A processing unit is coupled to the first memory element and to the actual voltage acquisition element and configured to calculate a voltage compensated duty-cycle. A driver unit is coupled to the processing unit and is configured to be supplied according to the voltage compensated duty-cycle.
-
公开(公告)号：US09595947B2
公开(公告)日：2017-03-14
申请号：US14797571
申请日：2015-07-13
Applicant: STMICROELECTRONICS S.r.l.
Inventor： Vanni Poletto , Patrizia Milazzo , Sergio Lecce
IPC: H03K5/04 , H03K17/041 , H03K19/003 , H03K19/0175 , H03K17/042 , H03K17/16
CPC classification number: H03K5/04 , H03K17/04106 , H03K17/04206 , H03K17/166 , H03K19/00323 , H03K19/0175
Abstract: A driver device is for switching on and off a transistor for supplying a load by driving a control electrode of the transistor. The driver device includes a first terminal connected to the control electrode of the transistor, a second terminal connected between the transistor and the load, and a current-discharge path coupled to the first terminal. The current-discharge path includes a diode and is activated when the transistor is switched off. The diode becomes non-conductive to interrupt the current-discharge path when the voltage on the second terminal reaches a threshold value.
Abstract translation: 驱动器件用于通过驱动晶体管的控制电极来接通和关断用于提供负载的晶体管。 驱动器件包括连接到晶体管的控制电极的第一端子，连接在晶体管和负载之间的第二端子以及耦合到第一端子的电流 - 放电路径。 电流放电路径包括二极管，并且当晶体管关断时被激活。 当第二端子上的电压达到阈值时，二极管变得不导通以中断电流 - 放电路径。
-
Search Results
22
records
(took 0.011 seconds)
