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公开(公告)号：US11545971B2
公开(公告)日：2023-01-03
申请号：US16717817
申请日：2019-12-17
Inventor： Bernhard Strzalkowski
IPC: G01R31/327 , H03K17/082 , G06F11/00 , H03K17/08
Abstract: The present disclosure provides techniques for predicting failure of power switches and taking action based on the predictions. In an example, a method can include controlling the at least two parallel-connected power switches via a first driver and a second driver, the first a second driver responsive to a single command signal, measuring a failure characteristic of a first power switch, and disabling a first driver of the first power switch when the first failure characteristic exceeds a failure precursor threshold.
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公开(公告)号：US20210210629A1
公开(公告)日：2021-07-08
申请号：US17145003
申请日：2021-01-08
Inventor： Bernhard Strzalkowski
Abstract: A power device can be structured with a power switch having multiple arrangements such that the power switch can operate as a power switch with the capability to measure properties of the power switch. An example power device can comprise a main arrangement of transistor cells and a sensor arrangement of sensor transistor cells. The main arrangement can be structured to operate as a power switch, with the transistor cells of the main arrangement having control nodes connected in parallel to receive a common control signal. The sensor arrangement of sensor transistor cells can be structured to measure one or more parameters of the main arrangement, with the sensor transistor cells having sensor control nodes connected in parallel to receive a common sensor control signal. The sensor transistor cells can have a common transistor terminal shared with a common transistor terminal of the transistor cells of the main arrangement.
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公开(公告)号：US20230188129A1
公开(公告)日：2023-06-15
申请号：US18067479
申请日：2022-12-16
Inventor： Bernhard Strzalkowski
IPC: H03K17/082 , G06F11/00 , G01R31/327
CPC classification number: H03K17/082 , G06F11/008 , G01R31/327 , H03K2017/0806
Abstract: The present disclosure provides techniques for predicting failure of power switches and taking action based on the predictions. In an example, a method can include controlling the at least two parallel-connected power switches via a first driver and a second driver, the first a second driver responsive to a single command signal, measuring a failure characteristic of a first power switch, and disabling a first driver of the first power switch when the first failure characteristic exceeds a failure precursor threshold.
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公开(公告)号：US11005431B2
公开(公告)日：2021-05-11
申请号：US16374219
申请日：2019-04-03
Inventor： Bernhard Strzalkowski
Abstract: Herein disclosed in some embodiments is a fault detector for power amplifiers of a communication system. The fault detector can detect a portion of the power amplifiers that are in fault condition and can prevent or limit current flow to the power amplifiers in fault condition while allowing the rest of the power amplifiers to operate normally. The fault detector can further indicate which power amplifiers are in fault condition and/or the cause for the power amplifiers to be in fault condition. Based on the indication, a controller can direct communications away from the power amplifiers in fault condition and/or perform operations to correct the fault condition.
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Patent Agency Ranking
公开(公告)号：US10948359B2
公开(公告)日：2021-03-16
申请号：US16175275
申请日：2018-10-30
Inventor： Bernhard Strzalkowski
Abstract: Techniques for determining a temperature measurement of a junction of a power switch are described. A current can be applied to a control node, e.g., gate terminal, of the power switch, such as a field-effect transistor (FET) or an insulated-gate bipolar transistor (IGBT), while the power switch is in a steady-state region in which a gate-to-source voltage (e.g., FET) or a gate-to-emitter voltage (e.g., IGBT) of the power switch is constant. While in the steady-state region, the temperature measurements can be performed, thereby ensuring accuracy of the measurement.
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公开(公告)号：US20240235381A1
公开(公告)日：2024-07-11
申请号：US18504025
申请日：2023-11-07
Inventor： Bernhard Strzalkowski
Abstract: In a first aspect, there is provided a method of controlling a power converter or a power inverter, comprising: using a comparator to detect a negative voltage drop at a gate of a passive switch device, the negative voltage drop being indicative of an active switch device turning off; applying an adjustment time to a predetermined turn on time of the passive switch device so as to reduce the resultant dead time; and turning on the passive device once the resultant dead time has elapsed.
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公开(公告)号：US20230361731A1
公开(公告)日：2023-11-09
申请号：US17738842
申请日：2022-05-06
Inventor： Qingyi Huang , Yong Zhang , Mark Cope , Bernhard Strzalkowski
CPC classification number: H03F3/245 , H03F1/0227 , H03F3/72 , H03F2203/7206
Abstract: Various examples are directed to a circuit for biasing a power amplifier (PA). The circuit may comprise a first isolated power supply comprising a first DC output and a first common output as well as a second isolated power supply comprising a second DC output and a second common output. The second DC output may be electrically coupled to the first common output. The circuit may also comprise a switch network that is configurable to a first state in which the first DC output is provided at a circuit output and to a second state in which the second DC output is provided at the circuit output.
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公开(公告)号：US11736072B2
公开(公告)日：2023-08-22
申请号：US17316661
申请日：2021-05-10
Inventor： Bernhard Strzalkowski
CPC classification number: H03F1/52 , G01R31/40 , H03F3/211 , H04B1/0466 , H03F2200/426 , H03F2200/451 , H03F2200/462 , H04B2001/0408
Abstract: Herein disclosed in some embodiments is a fault detector for power amplifiers of a communication system. The fault detector can detect a portion of the power amplifiers that are in fault condition and can prevent or limit current flow to the power amplifiers in fault condition while allowing the rest of the power amplifiers to operate normally. The fault detector can further indicate which power amplifiers are in fault condition and/or the cause for the power amplifiers to be in fault condition. Based on the indication, a controller can direct communications away from the power amplifiers in fault condition and/or perform operations to correct the fault condition.
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公开(公告)号：US11695070B2
公开(公告)日：2023-07-04
申请号：US17145003
申请日：2021-01-08
Inventor： Bernhard Strzalkowski
CPC classification number: H01L29/7815 , H01L27/0251 , H01L29/0696 , H03K17/145
Abstract: A power device can be structured with a power switch having multiple arrangements such that the power switch can operate as a power switch with the capability to measure properties of the power switch. An example power device can comprise a main arrangement of transistor cells and a sensor arrangement of sensor transistor cells. The main arrangement can be structured to operate as a power switch, with the transistor cells of the main arrangement having control nodes connected in parallel to receive a common control signal. The sensor arrangement of sensor transistor cells can be structured to measure one or more parameters of the main arrangement, with the sensor transistor cells having sensor control nodes connected in parallel to receive a common sensor control signal. The sensor transistor cells can have a common transistor terminal shared with a common transistor terminal of the transistor cells of the main arrangement.
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