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1. 发明申请

US20200233054A1 CURRENT MEASUREMENT DEVICE, CURRENT MEASUREMENT METHOD AND CALIBRATION METHOD 审中-公开
公开(公告)号：US20200233054A1
公开(公告)日：2020-07-23
申请号：US16743996
申请日：2020-01-15
申请人： Infineon Technologies AG
发明人： Michael Asam
IPC分类号： G01R35/00 , G01R19/32
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.

2. 发明授权

US10224919B2 Power switch control by supply voltage terminal 有权
公开(公告)号：US10224919B2
公开(公告)日：2019-03-05
申请号：US15425599
申请日：2017-02-06
申请人： Infineon Technologies AG
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.

3. 发明申请

US20190056448A1 TESTING MOS POWER SWITCHES 审中-公开
公开(公告)号：US20190056448A1
公开(公告)日：2019-02-21
申请号：US15678669
申请日：2017-08-16
申请人： Infineon Technologies AG
发明人： Michael Asam
IPC分类号： G01R31/26 , H02H1/00
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.

4. 发明申请

US20220077674A1 CONTROL CIRCUIT FOR ELECTRONIC SWITCHES 有权
公开(公告)号：US20220077674A1
公开(公告)日：2022-03-10
申请号：US17465528
申请日：2021-09-02
申请人： Infineon Technologies AG
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.

5. 发明申请

US20210297071A1 DRIVER FOR POWER DISTRIBUTION SWITCH 有权
公开(公告)号：US20210297071A1
公开(公告)日：2021-09-23
申请号：US17167848
申请日：2021-02-04
申请人： Infineon Technologies AG
发明人： Christoph Schulz-Linkholt , Michael Asam , Andre Mourrier
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.

6. 发明申请

US20210281170A1 VOLTAGE SUPPLY CIRCUITRY WITH CHARGE PUMP MODE AND BOOST CONVERTER MODE 有权
公开(公告)号：US20210281170A1
公开(公告)日：2021-09-09
申请号：US16809350
申请日：2020-03-04
申请人： Infineon Technologies AG
发明人： Michael Asam , Mihai-Alexandru Ionescu , Ardit Tabaku
IPC分类号： H02M3/07 , H02M1/08 , H02M3/158
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.

7. 发明授权

US10782334B2 Testing MOS power switches 有权
公开(公告)号：US10782334B2
公开(公告)日：2020-09-22
申请号：US15678669
申请日：2017-08-16
申请人： Infineon Technologies AG
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.

8. 发明申请

US20160164279A1 CIRCUIT AND METHOD FOR MEASURING A CURRENT 审中-公开
标题翻译：用于测量电流的电路和方法
公开(公告)号：US20160164279A1
公开(公告)日：2016-06-09
申请号：US14564172
申请日：2014-12-09
申请人： Infineon Technologies AG
发明人： Michael Asam , Andreas Meiser , Steffen Thiele
IPC分类号： H02H9/02 , G01R19/165 , H03K19/0185
CPC分类号： G01R19/16519 , G01R19/16538 , H02H3/087 , H03K19/018507
摘要： Circuits, switches with over-current protection and methods for measuring a current are described herein. A circuit configured to provide a current from a supply voltage to a load includes a first transistor, a second transistor, and a detecting circuit. The first transistor has a larger active area than the second transistor. The detecting circuit is configured to detect a current through the second transistor. A same voltage is applied between a control terminal of the first transistor and a first controlled terminal of the first transistor and is applied between a control terminal of the second transistor and a first controlled terminal of the second transistor. The detecting circuit is coupled to the second controlled terminal of the second transistor and is coupled to the supply voltage.
摘要翻译：这里描述了具有过电流保护的电路，开关和用于测量电流的方法。配置成将电流从电源电压提供给负载的电路包括第一晶体管，第二晶体管和检测电路。第一晶体管具有比第二晶体管更大的有源面积。检测电路被配置为检测通过第二晶体管的电流。在第一晶体管的控制端子和第一晶体管的第一受控端子之间施加相同的电压，并施加在第二晶体管的控制端子和第二晶体管的第一受控端子之间。检测电路耦合到第二晶体管的第二受控端并耦合到电源电压。

9. 发明授权

US11527881B2 Smart electronic switch 有权
公开(公告)号：US11527881B2
公开(公告)日：2022-12-13
申请号：US17387253
申请日：2021-07-28
申请人： Infineon Technologies AG
发明人： Mirko Bernardoni , Michael Asam , Christian Djelassi-Tscheck , Robert Illing , Martin Ringswirth , Mario Tripolt
IPC分类号： H02H3/08 , G01R19/00 , G01R19/165
摘要： A circuit includes a monitor circuit. The monitor circuit includes a nonlinear functional unit configured to receive a current sense signal and to generate a power signal representing the power of the current sense signal. The circuit further includes a first filter configured to receive the power signal and to generate a first filtered signal and a second filter configured to receive an input signal that depends on the current sense signal and to generate a second filtered signal. A comparator circuit is configured to receive the first filtered signal and the second filtered signal and to compare the first filtered signal with a first threshold value and the second filtered signal with a second threshold value. The protection signal is indicative of whether the first filtered signal exceeds the first threshold value or the second filtered signal exceeds the second threshold value.

10. 发明授权

US11346881B1 Status check for a switch 有权
公开(公告)号：US11346881B1
公开(公告)日：2022-05-31
申请号：US17183084
申请日：2021-02-23
申请人： Infineon Technologies AG
发明人： Denis Bilstein , Michael Asam
IPC分类号： G01R31/00 , G01R31/26 , G01R19/165 , G01R31/327 , G01R31/319 , G01R31/28 , G01R31/30 , G01R35/00
摘要： In some examples, a device includes a control circuit configured to deliver driving signals to a switch. The device also includes a testing circuit configured to cause the control circuit to toggle the switch at a first instance and determine a parameter magnitude at the switch at a second instance after toggling the switch at the first instance by at least determining a voltage magnitude at the switch at the second instance. The testing circuit is also configured to cause the control circuit to toggle the switch after the second instance and determine a parameter magnitude at the switch at a third instance after toggling the switch after the second instance. The testing circuit is further configured to generate an output based on the determined parameter magnitudes at the switch at the second and third instances.

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