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Fault Tolerant Fail Safe Connected Devices

A technology for connecting equipment and fail-safe, applied in the direction of protection reacting to overcurrent, emergency protection device with automatic disconnection, emergency protection circuit device, etc.

Active Publication Date: 2018-04-10
THE BOEING CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, in solid state power controllers (SSPCs), by limiting the choices as to which connector or pin the load wire will come from, these fail safe fuses can only be used as a thermal rating causing wire integration problems

Method used

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  • Fault Tolerant Fail Safe Connected Devices
  • Fault Tolerant Fail Safe Connected Devices
  • Fault Tolerant Fail Safe Connected Devices

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Embodiment Construction

[0035]Fail-safe connected devices including solid-state power controllers (SSPCs) are semiconductor devices that control the power (voltage and / or current) supplied to a load. They perform supervisory and diagnostic functions to identify overload conditions and prevent short circuits. There are several basic types of SSPCs, namely AC controllers designed to convert alternating current (AC) voltages; DC controllers designed to convert direct current (DC) voltages; and AC / DC controls designed to convert both AC and DC voltages device. Analog controllers use variable voltage, current, or some other method of analog control. A microcontroller needs to be programmed from an external device and is a complete computer system on a chip, usually incorporating an arithmetic logic unit (ALU), memory, timer / counter, serial ports, input / output (I / O) ports, and clock oscillator. The SSPC can be programmed by computer, or by specialized or proprietary programming methods.

[0036] Specif...

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PUM

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Abstract

The present invention relates to fault-tolerant fail-safe connection devices. The present disclosure generally relates to a plurality of solid state switches of different peripheral sizes connected in series between a power source and a load. A built-in test circuit senses an overvoltage condition on one or more different perimeter dimensions and opens or closes the one or more different perimeter dimensions based on a measured voltage across at least one of the plurality of solid state switches.

Description

technical field [0001] The field of embodiments presented herein relates to solid-state power controllers designed to operate in a fail-safe or fault-tolerant state. Background technique [0002] Fusible link circuit breakers were developed in the early 1980s to provide wire separation relief for vehicle electronic systems. The original intent was to prevent wire damage from propagating to adjacent wires if the circuit breaker fails in the closed position and fails to open when faulted. The failure modes in older circuit breakers with silver cadmium or silver tungsten contacts were welding together or being jammed preventing opening at large fault currents. Also, in solid-state power controllers (SSPCs), by limiting the choices as to which connector or pin the load wire will come from, these fail-safe fuses can only be used as a thermal rating causing wire integration problems. [0003] In order to obtain the most wire weight savings from the application of solid-state pow...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03H17/08
CPCH02H3/04H02H3/05H02H3/08G01R31/40G01R31/3277H02H3/202H02H7/1225H02H7/222H02H11/005H03K17/18H03K17/08122H03K2217/0027H02J2310/46H02J1/06
Inventor R·D·霍利N·E·勒顿
Owner THE BOEING CO