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公开(公告)号：US20180013340A1
公开(公告)日：2018-01-11
申请号：US15205566
申请日：2016-07-08
Applicant: Infineon Technologies AG
Inventor： Stefano Zampieri , Fabio Ballarin
CPC classification number: H02M1/088 , G06F1/305 , H02M1/32 , H02M2001/0003 , H02M2001/0012
Abstract: The disclosure describes examples of integrate circuit (IC) chips. An IC chip includes a first detector configured to generate information indicative of whether an input supply voltage or power is greater than or equal to a first threshold, a second detector configured to receive a circuit voltage or current level and generate information used to indicate a status of the IC chip based on the received circuit voltage or current level, and a controller configured to cause the IC chip to enter a safe mode in response to both the first detector indicating that the input supply voltage or power is greater than the first threshold and the circuit voltage or current level being greater than a second threshold.
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公开(公告)号：US20240364209A1
公开(公告)日：2024-10-31
申请号：US18308180
申请日：2023-04-27
Applicant: Infineon Technologies AG
Inventor： Giovanni Bisson , Stefano Zampieri
Abstract: A device may drive, during a first portion of a switching period, a first switching element to electrically connect a switching node to a first node of a supply. The switching node is configured to couple to a first node of an inductive element. The device may drive, during a second portion of the switching period, a second switching element to electrically connect the switching node to a second node of the supply of the controller circuitry. The device may drive, during a third portion of the switching period, the first switching element to refrain from connecting the switching node to the first node of the supply of the controller circuitry, the second switching element to refrain from connecting the switching node to the second node of the supply, and a third switching element to electrically connect the switching node to a second node of the inductive element.
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Patent Agency Ranking
公开(公告)号：US09519303B2
公开(公告)日：2016-12-13
申请号：US14176795
申请日：2014-02-10
Applicant: Infineon Technologies AG
Inventor： Fabio Ballarin , Marco Piselli , Fabio Gini , Stefano Zampieri
CPC classification number: G05F3/262 , G05F3/222 , G05F3/265 , H02M3/1584
Abstract: Example current tracking circuits and systems as well as methods for tracking current are described herein. In one example, a current tracking circuit comprises a current mirror that receives a power supply input and a control signal as inputs, wherein the current mirror has a mirror ratio. The current tracking circuit also comprises a programmability sub-circuit coupled to the current mirror that trims a value of the mirror ratio. In another example, a method comprises performing current mirroring using a current mirror comprising a sense device, wherein a mirror ratio of the current mirror is based on a programmable sub-circuit. The method further comprises maintaining, by a voltage regulation loop, a collector potential of the sense device within a threshold difference level of a collector potential of a power device coupled to the sense device, wherein the sense device mirrors a current flowing in the power device.
Abstract translation: 本文描述了电流跟踪电路和系统的示例以及跟踪电流的方法。 在一个示例中，电流跟踪电路包括接收电源输入和控制信号作为输入的电流镜，其中电流镜具有镜像比。 电流跟踪电路还包括耦合到电流镜的可编程子电路，其修整镜像比的值。 在另一示例中，一种方法包括使用包括感测装置的电流镜执行电流镜像，其中电流镜的镜像比基于可编程子电路。 该方法还包括通过电压调节回路将感测装置的集电极电位维持在耦合到感测装置的功率器件的集电极电位的阈值差水平之内，其中感测装置反射在功率装置中流动的电流 。
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公开(公告)号：US20150227157A1
公开(公告)日：2015-08-13
申请号：US14176795
申请日：2014-02-10
Applicant: INFINEON TECHNOLOGIES AG
Inventor： Fabio Ballarin , Marco Piselli , Fabio Gini , Stefano Zampieri
IPC: G05F3/26
CPC classification number: G05F3/262 , G05F3/222 , G05F3/265 , H02M3/1584
Abstract: Example current tracking circuits and systems as well as methods for tracking current are described herein. In one example, a current tracking circuit comprises a current mirror that receives a power supply input and a control signal as inputs, wherein the current mirror has a mirror ratio. The current tracking circuit also comprises a programmability sub-circuit coupled to the current mirror that trims a value of the mirror ratio. In another example, a method comprises performing current mirroring using a current mirror comprising a sense device, wherein a mirror ratio of the current mirror is based on a programmable sub-circuit. The method further comprises maintaining, by a voltage regulation loop, a collector potential of the sense device within a threshold difference level of a collector potential of a power device coupled to the sense device, wherein the sense device mirrors a current flowing in the power device.
Abstract translation: 本文描述了电流跟踪电路和系统的示例以及跟踪电流的方法。 在一个示例中，电流跟踪电路包括接收电源输入和控制信号作为输入的电流镜，其中电流镜具有镜像比。 电流跟踪电路还包括耦合到电流镜的可编程子电路，其修整镜像比的值。 在另一示例中，一种方法包括使用包括感测装置的电流镜执行电流镜像，其中电流镜的镜像比基于可编程子电路。 该方法还包括通过电压调节回路将感测装置的集电极电位维持在耦合到感测装置的功率器件的集电极电位的阈值差水平之内，其中感测装置反射在功率装置中流动的电流 。
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公开(公告)号：US20240372468A1
公开(公告)日：2024-11-07
申请号：US18615768
申请日：2024-03-25
Applicant: Infineon Technologies AG
Inventor： Stefano Zampieri
Abstract: A circuit for a switching converter is described herein. In accordance with one embodiment, the circuit includes a converter stage configured to convert an input voltage into an output voltage in accordance with a modulated drive signal, an error amplifier configured to generate an error signal representing a difference between the output voltage and a reference voltage, a first and a second modulator, and a logic circuit. The first modulator is configured to generate a first control signal based on the error signal and a reference signal, wherein the reference signal is controlled dependent on the input voltage and the output voltage. The second modulator is configured to generate a second control signal based on the error signal. The logic circuit is configured to provide the drive signal based on the first control signal or the second control signal.
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公开(公告)号：US20240364207A1
公开(公告)日：2024-10-31
申请号：US18308151
申请日：2023-04-27
Applicant: Infineon Technologies AG
Inventor： Marco Flaibani , Stefano Zampieri , Giovanni Bisson
Abstract: A circuit includes a switching signal generator and synchronization circuitry configured to determine a first time of a switching period based on a switching signal. The circuit further includes a comparison signal generator configured to generate a comparison signal with a first constant rate of change after the first time. The synchronization circuitry is further configured to determine a second time of the switching period based on when current at the inductive element changes from a positive current to a negative current. The comparison signal generator is further configured to generate the comparison signal with a second constant rate of change after the second time. The circuit further includes a threshold detector configured to compare a value of the comparison signal at the end of a target switching period with a threshold value.
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公开(公告)号：US10128738B2
公开(公告)日：2018-11-13
申请号：US15205566
申请日：2016-07-08
Applicant: Infineon Technologies AG
Inventor： Stefano Zampieri , Fabio Ballarin
Abstract: The disclosure describes examples of integrate circuit (IC) chips. An IC chip includes a first detector configured to generate information indicative of whether an input supply voltage or power is greater than or equal to a first threshold, a second detector configured to receive a circuit voltage or current level and generate information used to indicate a status of the IC chip based on the received circuit voltage or current level, and a controller configured to cause the IC chip to enter a safe mode in response to both the first detector indicating that the input supply voltage or power is greater than the first threshold and the circuit voltage or current level being greater than a second threshold.
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