公开(公告)号：US09781800B2

公开(公告)日：2017-10-03

申请号：US14719035

申请日：2015-05-21

Applicant: Infineon Technologies AG

Inventor： Andrea Scenini ,  Giovanni Capodivacca ,  Adolfo De Cicco

IPC: H05B33/08

CPC classification number: H05B33/0857 ,  H05B33/0842

Abstract: A device for driving several light sources is provided, wherein the several light sources are arranged in a matrix structure; wherein the several light sources of the matrix structure are connected to a semiconductor device; wherein a portion of the semiconductor device corresponds to a light source of the matrix structure, wherein the portion of the semiconductor device comprises a diagnosis function which when activated is arranged for supplying an output diagnosis signal.

公开(公告)号：US20160345397A1

公开(公告)日：2016-11-24

申请号：US14718956

申请日：2015-05-21

Applicant: Infineon Technologies AG

Inventor： Adolfo De Cicco ,  Andrea Scenini ,  Giovanni Capodivacca

IPC: H05B33/08

CPC classification number: H05B33/0824 ,  H05B33/0842

Abstract: A device for driving several light sources is suggested comprising a shift register comprising at least two cells, wherein an output of each cell controls one of the several light sources; wherein the at least two cells are connected in series and are driven by a clock signal; wherein each cell of the shift register comprises a flip-flop and a register; wherein the output of the flip-flop is connected with the input of the register; wherein the register is arranged to store the output of the register based on an update signal and wherein the output of the register controls one of the light sources; wherein the flip-flops of the at least two cells are filled with a data signal based on the clock signal; and wherein after a predetermined number of cycles of the clock signal the update signal is conveyed to the registers driving the light sources according to the values stored in the flip-flops of the cells.

Abstract translation: 建议一种用于驱动多个光源的装置，其包括至少两个单元的移位寄存器，其中每个单元的输出控制多个光源中的一个; 其中所述至少两个电池串联连接并由时钟信号驱动; 其中移位寄存器的每个单元包括触发器和寄存器; 其中触发器的输出与寄存器的输入端相连; 其中所述寄存器被布置为基于更新信号存储所述寄存器的输出，并且其中所述寄存器的输出控制所述光源中的一个; 其中所述至少两个单元的触发器基于所述时钟信号被填充有数据信号; 并且其中在所述时钟信号的预定数量的周期之后，根据存储在所述单元的触发器中的值，将所述更新信号传送到驱动所述光源的寄存器。

公开(公告)号：US10321533B2

公开(公告)日：2019-06-11

申请号：US15691526

申请日：2017-08-30

Applicant: Infineon Technologies AG

Inventor： Andrea Scenini ,  Giovanni Capodivacca ,  Adolfo De Cicco

IPC: H05B33/08

Abstract: A device for driving several light sources is provided, wherein the several light sources are arranged in a matrix structure; wherein the several light sources of the matrix structure are connected to a semiconductor device; wherein a portion of the semiconductor device corresponds to a light source of the matrix structure, wherein the portion of the semiconductor device comprises a diagnosis function which when activated is arranged for supplying an output diagnosis signal.

公开(公告)号：US10203365B2

公开(公告)日：2019-02-12

申请号：US14918528

申请日：2015-10-20

Applicant: Infineon Technologies AG

Inventor： Giovanni Capodivacca ,  Adolfo De Cicco

IPC: G01R31/02 ,  G01R31/26

Abstract: A device may include a plurality of cells. Each cell may include a field-effect transistor and a switch configured to selectively connect a second contact of the respective field-effect transistor with a common test line of the device. A controller of the device is configured to control the switch to be in a closed position. At least one pin is provided which is configured to apply a stress voltage to a common power line connected to a first contact with the field-effect transistor and to the common test line.

公开(公告)号：US09292028B2

公开(公告)日：2016-03-22

申请号：US13624696

申请日：2012-09-21

Applicant: Infineon Technologies AG

Inventor： Giovanni Capodivacca ,  Paolo Milanesi ,  Andrea Scenini

IPC: G05F1/46 ,  H05B33/08

CPC classification number: G05F1/468 ,  H05B33/0815 ,  H05B33/0854

Abstract: A control circuit can control the operation of a switching converter to provide a regulated load current to a load. The switching converter includes an inductor and a high-side and a low side-transistor for switching the load current provided via the inductor. A digital modulator is configured to provide a modulated signal having a duty cycle determined by a digital duty cycle value. A current sense circuit is coupled to at least one of the transistors and is configured to regularly sample a load current value. A comparator is coupled to the current sense circuit and is configured to compare the sampled load current value with a first threshold and to provide a respective comparator output signal. A regulator is configured to receive the comparator output signal and to calculate an updated digital duty cycle value.

Abstract translation: 控制电路可以控制开关转换器的操作以向负载提供调节的负载电流。 开关转换器包括电感器和用于切换经由电感器提供的负载电流的高侧和低侧晶体管。 数字调制器被配置为提供具有由数字占空比值确定的占空比的调制信号。 电流感测电路耦合到晶体管中的至少一个，并被配置为定期对负载电流值进行采样。 比较器耦合到电流感测电路，并且被配置为将采样的负载电流值与第一阈值进行比较，并提供相应的比较器输出信号。 调节器被配置为接收比较器输出信号并计算更新的数字占空比值。

公开(公告)号：US20130082675A1

公开(公告)日：2013-04-04

申请号：US13624696

申请日：2012-09-21

Applicant: INFINEON TECHNOLOGIES AG

Inventor： Giovanni Capodivacca ,  Paolo Milanesi ,  Andrea Scenini

IPC: G05F1/46

CPC classification number: G05F1/468 ,  H05B33/0815 ,  H05B33/0854

Abstract: A control circuit can control the operation of a switching converter to provide a regulated load current to a load. The switching converter includes an inductor and a high-side and a low side-transistor for switching the load current provided via the inductor. A digital modulator is configured to provide a modulated signal having a duty cycle determined by a digital duty cycle value. A current sense circuit is coupled to at least one of the transistors and is configured to regularly sample a load current value. A comparator is coupled to the current sense circuit and is configured to compare the sampled load current value with a first threshold and to provide a respective comparator output signal. A regulator is configured to receive the comparator output signal and to calculate an updated digital duty cycle value.

Abstract translation: 控制电路可以控制开关转换器的操作以向负载提供调节的负载电流。 开关转换器包括电感器和用于切换经由电感器提供的负载电流的高侧和低侧晶体管。 数字调制器被配置为提供具有由数字占空比值确定的占空比的调制信号。 电流感测电路耦合到晶体管中的至少一个，并被配置为定期对负载电流值进行采样。 比较器耦合到电流感测电路，并且被配置为将采样的负载电流值与第一阈值进行比较，并提供相应的比较器输出信号。 调节器被配置为接收比较器输出信号并计算更新的数字占空比值。

公开(公告)号：US09974130B2

公开(公告)日：2018-05-15

申请号：US14718956

申请日：2015-05-21

Applicant: Infineon Technologies AG

Inventor： Adolfo De Cicco ,  Andrea Scenini ,  Giovanni Capodivacca

IPC: H05B37/02 ,  H05B33/08

CPC classification number: H05B33/0824 ,  H05B33/0842

Abstract: A device for driving several light sources is suggested comprising a shift register comprising at least two cells, wherein an output of each cell controls one of the several light sources; wherein the at least two cells are connected in series and are driven by a clock signal; wherein each cell of the shift register comprises a flip-flop and a register; wherein the output of the flip-flop is connected with the input of the register; wherein the register is arranged to store the output of the register based on an update signal and wherein the output of the register controls one of the light sources; wherein the flip-flops of the at least two cells are filled with a data signal based on the clock signal; and wherein after a predetermined number of cycles of the clock signal the update signal is conveyed to the registers driving the light sources according to the values stored in the flip-flops of the cells.

公开(公告)号：US20170367160A1

公开(公告)日：2017-12-21

申请号：US15691526

申请日：2017-08-30

Applicant: Infineon Technologies AG

Inventor： Andrea Scenini ,  Giovanni Capodivacca ,  Adolfo De Cicco

IPC: H05B33/08

CPC classification number: H05B33/0857 ,  H05B33/0842

Abstract: A device for driving several light sources is provided, wherein the several light sources are arranged in a matrix structure; wherein the several light sources of the matrix structure are connected to a semiconductor device; wherein a portion of the semiconductor device corresponds to a light source of the matrix structure, wherein the portion of the semiconductor device comprises a diagnosis function which when activated is arranged for supplying an output diagnosis signal.

公开(公告)号：US20160345392A1

公开(公告)日：2016-11-24

申请号：US14719035

申请日：2015-05-21

Applicant: Infineon Technologies AG

Inventor： Andrea Scenini ,  Giovanni Capodivacca ,  Adolfo De Cicco

IPC: H05B33/08

CPC classification number: H05B33/0857 ,  H05B33/0842

Abstract: A device for driving several light sources is provided, wherein the several light sources are arranged in a matrix structure; wherein the several light sources of the matrix structure are connected to a semiconductor device; wherein a portion of the semiconductor device corresponds to a light source of the matrix structure, wherein the portion of the semiconductor device comprises a diagnosis function which when activated is arranged for supplying an output diagnosis signal.

Abstract translation: 提供一种用于驱动多个光源的装置，其中几个光源被布置成矩阵结构; 其中所述矩阵结构的多个光源连接到半导体器件; 其中所述半导体器件的一部分对应于所述矩阵结构的光源，其中所述半导体器件的所述部分包括诊断功能，当所述半导体器件的激活被布置用于提供输出诊断信号时。

公开(公告)号：US09203311B2

公开(公告)日：2015-12-01

申请号：US14199633

申请日：2014-03-06

Applicant: Infineon Technologies AG

Inventor： Roberto Penzo ,  Maurizio Galvano ,  Paolo Milanesi ,  Giovanni Capodivacca

IPC: H05B37/02 ,  H02M3/158 ,  H05B33/08

CPC classification number: H02M3/158 ,  H02M3/1582 ,  H02M2001/0003 ,  H02M2001/0009 ,  H02M2001/0025 ,  H02M2001/322 ,  H02M2003/1566 ,  H05B33/0815 ,  H05B33/083

Abstract: Methods, devices, and integrated circuits are disclosed for applying an active output voltage discharge for a buck-boost converter. One example is directed to a method of operating a buck-boost converter that comprises an inductor, an output capacitor, and an output. The method includes receiving an indication of an altered output voltage requirement in the buck-boost converter. The method further includes deactivating a control loop in the buck-boost converter. The method further includes applying an active discharge of voltage from the output capacitor through the inductor to ground, thereby altering the voltage at the output of the buck-boost converter from a first output voltage to a second output voltage that corresponds to the altered output voltage requirement. The method further includes reactivating the control loop.

Abstract translation: 公开了用于对降压 - 升压转换器施加有效输出电压放电的方法，装置和集成电路。 一个例子涉及一种操作包括电感器，输出电容器和输出的降压 - 升压转换器的方法。 该方法包括在降压 - 升压转换器中接收改变的输出电压要求的指示。 该方法还包括去激活降压 - 升压转换器中的控制回路。 该方法还包括将来自输出电容器的电压的有源放电通过电感器施加到地，从而将降压 - 升压转换器的输出端的电压从第一输出电压改变到对应于改变的输出电压的第二输出电压 需求。 该方法还包括重新启动控制回路。