Semiconductor equipment
The semiconductor device allows for flexible adjustment of detection thresholds through an external terminal and detection threshold adjustment circuit, addressing the inflexibility of conventional devices and improving adaptability.
JP7885541B2Active Publication Date: 2026-07-07FUJI ELECTRIC CO LTD
Patent Information
- Application Number
- JP2022029984
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2022-02-28
- Publication Date
- 2026-07-07
- Estimated Expiration
- 2042-02-28
Smart Images
Figure 0007885541000001 
Figure 0007885541000002 
Figure 0007885541000003
Abstract
To flexibly and easily change a detection threshold in a protection function.SOLUTION: A driving circuit 1a1 generates a driving signal a2 for turning on / off an output element M0 on the basis of a control signal a1 via an input terminal Ain1, and switches the output element M0 by the driving signal a2. A detection circuit 1a2 compares a status signal a3 indicating an operation status with a detection threshold Vf0, and detects an abnormal level of the operation status of the output element M0 on the basis of the comparison results. When an abnormal level is detected by the detection circuit 1a2, an abnormality level notification circuit 1a3 notifies the outside of an abnormal level notification signal a4 via an output terminal Aout2. A detection threshold adjustment circuit 1a4 generates an adjustment signal a6 on the basis of an external signal a5 input via an output terminal Ain2, and adjusts and sets the detection threshold Vf0 to a prescribed value by the adjustment signal a6.SELECTED DRAWING: Figure 1
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Citation Information
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