Invention Grant
- Patent Title: Apparatus and method for reducing temperature influence in measuring switching current
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Application No.: US17491407Application Date: 2021-09-30
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Publication No.: US11942939B2Publication Date: 2024-03-26
- Inventor: Sang Min Kim
- Applicant: HYUNDAI MOBIS CO., LTD.
- Applicant Address: KR Seoul
- Assignee: Hyundai Mobis Co., Ltd.
- Current Assignee: Hyundai Mobis Co., Ltd.
- Current Assignee Address: KR Seoul
- Agency: NSIP Law
- Priority: KR 20210029076 2021.03.04
- Main IPC: H03K3/011
- IPC: H03K3/011 ; H03F3/45 ; H03H7/06

Abstract:
An apparatus for reducing a temperature influence in measuring a switching current based on stray inductance. The apparatus includes a current detector configured to output a voltage derived from a differential component of a current so as to detect a switching current of a power module, a filter configured to filter the voltage output from the current detector, an integrator configured to integrate a voltage output from the filter, an ADC configured to convert an analog voltage output from the integrator into a digital voltage and sample the digital voltage, a scaler configured to convert a sampled integrator output value output from the ADC into a scaled current value, and a compensator configured to remove a temperature dependent DCR effect from the scaled current value.
Public/Granted literature
- US20220286115A1 APPARATUS AND METHOD FOR REDUCING TEMPERATURE INFLUENCE IN MEASURING SWITCHING CURRENT Public/Granted day:2022-09-08
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