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公开(公告)号：US11955957B2
公开(公告)日：2024-04-09
申请号：US17455131
申请日：2021-11-16
发明人： Christian Djelassi-Tscheck , Michael Asam , Mirko Bernardoni , David Jacquinod , Andre Mourrier , Mario Tripolt
IPC分类号： H03K17/082 , H03K17/0814
CPC分类号： H03K17/0822 , H03K17/08142
摘要： In accordance with an embodiment, a circuit for driving an electronic switch includes a control circuit configured to trigger a switch-on and a switch-off of the electronic switch in accordance with an input signal, wherein the control circuit is further configured to trigger the switch-off of the electronic switch in response to an under-voltage signal signaling an under-voltage state; and an under-voltage detection circuit configured to signal the under-voltage state when a supply voltage received at a supply node is below an under-voltage threshold value, wherein the under-voltage threshold value depends on a load current passing through the electronic switch.
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公开(公告)号：US11736101B2
公开(公告)日：2023-08-22
申请号：US17167848
申请日：2021-02-04
IPC分类号： H03K17/082 , G06F11/07 , G05F1/573 , G05F1/567 , H03K17/18
CPC分类号： H03K17/0822 , G05F1/567 , G05F1/573 , G06F11/0757 , H03K17/18
摘要： A circuit for controlling electrical power is described herein. In accordance with one embodiment, the circuit comprises: a circuit node operably connected to a pass element configured to be switched on and off in accordance with a drive signal applied at the circuit node; a communication interface configured to receive data from an external controller operably connected to the communication interface; and a control circuit configured to generate, in a first mode of operation, the drive signal dependent on parameters of a first parameter set and based on data received via the communication interface, and to generate, in a second mode of operation, the drive signal dependent on parameters of a second parameter set while discarding data received via the communication interface.
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公开(公告)号：US20200233054A1
公开(公告)日：2020-07-23
申请号：US16743996
申请日：2020-01-15
发明人： Michael Asam
摘要： Current measurement device and methods are provided. An output signal is provided based on a voltage across a resistive element. A correction circuit is configured to estimate an indication of a temperature change of the resistive element based on the voltage across the resistive element and to correct the output of the current measurement device based on the indication of the temperature change and a measured temperature.
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公开(公告)号：US10224919B2
公开(公告)日：2019-03-05
申请号：US15425599
申请日：2017-02-06
发明人： Michael Asam , Carmelo Giunta
IPC分类号： H03K17/06 , H03K17/284
摘要： A power switch device includes a switch which is configured to switch a load signal between an on state and an off state. A first terminal and a second terminal of the power switch device are configured to provide a supply voltage to the power switch device. The second terminal is further configured to provide a control signal to the power switch device. The control signal is generated by disconnecting the second terminal from an external voltage source. A storage circuit of the power switch device is configured to capacitively store a status of the supply voltage. A control circuit of the power switch device is configured to control operation of the power switch device depending on the stored status of the supply voltage.
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公开(公告)号：US20190056448A1
公开(公告)日：2019-02-21
申请号：US15678669
申请日：2017-08-16
发明人： Michael Asam
摘要： Methods and devices are discussed relating to testing of MOS switch transistors. For example, at least two different test measurements may be performed, and a fault state may be determined based on the at least two test measurements.
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公开(公告)号：US11843238B2
公开(公告)日：2023-12-12
申请号：US17451414
申请日：2021-10-19
CPC分类号： H02H3/08 , H02H1/0007 , H03K5/24
摘要： According to an embodiment, a current monitoring circuit includes a signal shaping unit configured to receive a current sense signal and provide a modified current signal; a filter configured to receive the modified current signal and to provide a respective filtered signal; a comparator configured to receive the filtered signal and a threshold value and to indicate when the filtered signal exceeds the threshold value. The signal shaping unit is configured to calculate a level of the modified current signal from a corresponding level of the current sense signal in accordance with non-linear function.
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公开(公告)号：US20220077674A1
公开(公告)日：2022-03-10
申请号：US17465528
申请日：2021-09-02
发明人： Michael Asam
IPC分类号： H02H3/247
摘要： A method for operating an electronic switch is described hereinafter. According to one exemplary embodiment, the method (for an electronic switch in the switched on state) comprises detecting whether there is an undervoltage condition at a supply voltage node and providing an undervoltage signal which indicates an undervoltage condition. The method further comprises switching off the electronic switch if the undervoltage signal indicates an undervoltage condition and switching (back) on the electronic switch if the undervoltage signal no longer indicates an undervoltage condition. If the undervoltage signal indicates an undervoltage condition during a switch-on process of the electronic switch, the electronic switch is switched off again and switching back on is prevented for a defined period of time, irrespective of the undervoltage signal. Moreover, a corresponding circuit is described.
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公开(公告)号：US20210297071A1
公开(公告)日：2021-09-23
申请号：US17167848
申请日：2021-02-04
IPC分类号： H03K17/082 , G06F11/07 , H03K17/18 , G05F1/567 , G05F1/573
摘要： A circuit for controlling electrical power is described herein. In accordance with one embodiment, the circuit comprises: a circuit node operably connected to a pass element configured to be switched on and off in accordance with a drive signal applied at the circuit node; a communication interface configured to receive data from an external controller operably connected to the communication interface; and a control circuit configured to generate, in a first mode of operation, the drive signal dependent on parameters of a first parameter set and based on data received via the communication interface, and to generate, in a second mode of operation, the drive signal dependent on parameters of a second parameter set while discarding data received via the communication interface.
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公开(公告)号：US20210281170A1
公开(公告)日：2021-09-09
申请号：US16809350
申请日：2020-03-04
摘要： Voltage supply circuitry includes a high-side pin and a low-side pin configured to couple to a storage element and an output pin. The voltage supply further includes a high-side switching element configured to electrically couple the positive supply pin and the low-side pin based on a high-side control signal and a low-side switching element configured to electrically couple the reference supply pin and the low-side pin based on a low-side control signal. The voltage supply further including driver circuitry configured to generate the high-side control signal and the low-side control signal for operating in a charge pump mode when the storage element is arranged in a charge pump configuration with the voltage supply circuitry and to generate the high-side control signal and the low-side control signal for operating in a boost converter mode when the storage element is arranged in a boost converter configuration with the voltage supply circuitry.
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公开(公告)号：US10782334B2
公开(公告)日：2020-09-22
申请号：US15678669
申请日：2017-08-16
发明人： Michael Asam
IPC分类号： G01R31/26 , G01R31/327
摘要： Methods and devices are discussed relating to testing of MOS switch transistors. For example, at least two different test measurements may be performed, and a fault state may be determined based on the at least two test measurements.
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