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Systems and methods for diagnosis of electrical failures

A power supply and power technology, applied in the system field, can solve problems such as cable output faults

Active Publication Date: 2022-08-09
CONNAUGHT ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, sometimes the output to the load device or attached cable may experience a fault condition

Method used

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  • Systems and methods for diagnosis of electrical failures
  • Systems and methods for diagnosis of electrical failures
  • Systems and methods for diagnosis of electrical failures

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Embodiment Construction

[0008] Specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings. For consistency, like elements in the various figures are represented by the same reference numerals.

[0009] In the following detailed description of embodiments of the present invention, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to one of ordinary skill in the art that the present invention may be practiced without these specific details. In other instances, well-known features have not been described in detail to avoid unnecessarily complicating the description.

[0010] Throughout the application, ordinal numbers (eg, first, second, third, etc.) may be used as adjectives for elements (ie, any nouns in the application). The use of ordinal numbers does not imply or create any particular order of elements nor does it limit any element unless ex...

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Abstract

A load device coupled to the output of an ECU via a coaxial cable is disclosed. The ECU provides power to the load device and has a Power over Coax (PoC) filter coupled to the output, a high side switch (HSS) coupled to the power supply and PoC filter through the HSS output line, eliminating current flow from the output towards the HSS A diode placed in the HSS output line that also allows current to flow from the HSS to the load device, a diode resistor placed in parallel with the diode that allows current to flow through the diode toward the HSS when a short-to-battery condition occurs, and is configured to switch the The voltage at the output of the HSS is pulled down to zero volts by a pull-down resistor (RPD) placed between the output line of the HSS and ground before the diode.

Description

Background technique [0001] Power over Coax (PoC) systems typically provide power to load devices, at least in part, through coaxial cables using the power source. There is usually a high-side switch (HSS) between the coaxial cable and the power supply to connect or disconnect the power supply to the load equipment. However, sometimes the output to the load device or attached cable may experience a fault condition. Such fault conditions may include short circuit conditions (eg, to some unexpected power source such as a battery) or open circuit load conditions (eg, disconnection of the load device). SUMMARY OF THE INVENTION [0002] In general, in one aspect, the present invention relates to a system including a load device and an ECU coupled via a coaxial cable to an output of an electronic control unit (ECU). The ECU includes: a power supply configured to provide power to a load device; a power over coax (PoC) filter coupled to the output; a high side switch (HSS) coupled...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/52G01R31/54
CPCH04B3/46G01R31/52G01R31/007G01R31/54G07C5/0808G01R31/006
Inventor B.德拉戈伊S.班蒂尔斯
Owner CONNAUGHT ELECTRONICS