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A circuit with hot-plug protection, corresponding electronic device, vehicle and method

A technology for protecting circuits and electronic equipment, applied in emergency protection circuit devices, emergency protection circuit devices for limiting overcurrent/overvoltage, circuit devices, etc., can solve problems such as impossible test robustness, and achieve cost reduction and the effects of complexity

Pending Publication Date: 2020-05-08
STMICROELECTRONICS SRL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] In these cases, it is almost impossible to test the robustness of the BMS ECU to all possible hot-plug scenarios

Method used

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  • A circuit with hot-plug protection, corresponding electronic device, vehicle and method
  • A circuit with hot-plug protection, corresponding electronic device, vehicle and method
  • A circuit with hot-plug protection, corresponding electronic device, vehicle and method

Examples

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Embodiment Construction

[0043] In the ensuing description, one or more specific details are set forth in order to provide an in-depth understanding of examples of embodiments of the specification. Embodiments may be presented without one or more of the specific details, or without other methods, components, materials, etc. In other instances, known structures, materials, or operations are not specified or described in detail so as not to obscure aspects of the embodiments.

[0044] Within the framework of this specification, references to "an embodiment" or "one embodiment" are intended to indicate that a particular configuration, structure or characteristic described with respect to the embodiment is included in at least one embodiment. Thus, phrases such as "in an embodiment" or "in one embodiment," which may be present at one or more points in this specification, are not necessarily referring to the same embodiment. Furthermore, particular configurations, structures or characteristics may be comb...

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Abstract

An embodiment of the invention relates to a circuit with hot-plug protection, a corresponding electronic device, a vehicle and a method. The integrated circuit with a hot-plug protection circuit includes input pins and an output pin. The input pins are electrically coupled to a common node in the hot-plug protection circuit via respective electrical connections. The integrated circuit includes clamping circuitry coupled between the common node and the output pin, the clamping circuitry activatable as a result of a voltage spike applied across the clamping circuitry. The plurality of electricalconnections and the clamping circuitry provide respective current discharge paths between the input pins in the input pins and the output pin, the respective current discharge paths configured to become conductive as a result of a voltage spike applied to any of the input pins in the plurality of input pins being transferred to the common node via the respective electrical connection in the plurality of electrical connections electrically coupling said any of said input pins to the common node.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of Italian Application No. 102018000009947, filed October 31, 2018, which is hereby incorporated by reference. technical field [0003] This specification relates to solutions for protecting circuits, such as integrated circuits (ICs), from hot-swap events. [0004] One or more embodiments may be applied to (integrated) circuits for battery management systems (BMS), eg in the automotive field or in the field of energy storage systems for industrial applications. Background technique [0005] In general, the term "hot plug event" may refer to the sudden connection ("plug") of one or more pins of a circuit, such as an integrated circuit, to a live ("hot") terminal or line. [0006] In general, hot plug events are generally undesirable because they may result in an uncontrolled transfer of energy from the live power supply to the circuit being plugged in, possibly resulting in damage ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H9/04H02H9/02
CPCH02H9/04H02H9/025H02H9/001H02H9/005H02H9/041H02H9/042H02H9/046H02H1/063H02J7/0014
Inventor V·德安格洛S·坎纳瓦休欧罗S·莱切V·本多蒂O·彭尼西
Owner STMICROELECTRONICS SRL
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