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Supervisory drive circuit

A driving circuit and circuit technology, applied in the direction of electrical components, etc., can solve problems such as large cable voltage drop, low product reliability, driver's misrecognition of signals, etc., so as to prolong product life and meet the requirements of light-off detection

Active Publication Date: 2022-06-21
SHANGHAI TIEDA ELECTRONICS & INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because turning off the lights may cause the driver to misunderstand the signal, causing a major accident of car crash and death.
In the railway field, the signal machine is far away from the control room, and the cable voltage drop is large. At present, manual gear adjustment is generally used to solve the problem, which is inconvenient for construction.
The LED power supply contains a large number of electronic components, and it has been working in harsh outdoor environments for a long time, which often leads to product life that cannot meet the site requirements.
At present, the popularity of LED signal machines in railways is not high, mainly due to the fact that the current signal interlocking circuit interface method cannot meet the performance characteristics of LED lights, and the overall reliability of the product is not high.

Method used

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Embodiment Construction

[0039] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0040] In order to further understand the present invention, the preferred embodiments of the present invention are described below with reference to the examples, but it should be understood that these descriptions are only for further illustrating the features and advantages of the present invention, rather than limiting the claims of the present invention.

[0041] The description in this section is only for a few typical embodiments, and the present invention is not limited to the scope of the description of the embodiments. It is also within the scope of the description and protection of the present invention to replace some technical features in the embodiments with the same or similar prior art means.

[0042] The invention discloses a supervisory driving circuit, figure 1 It is a schematic diagram of the composition of the supervis...

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Abstract

The invention discloses a supervisory drive circuit, which comprises: a drive circuit, a sampling circuit and a supervisory circuit; the drive circuit is used to convert alternating current into direct current, and automatically adjusts the voltage according to the length of the cable; the sampling circuit is used to obtain load and send the collected data to the supervisory circuit; the supervisory circuit is respectively connected to the driving circuit and the sampling circuit to judge the state of the load according to the signal collected by the sampling circuit. The supervisory drive circuit proposed by the invention can automatically adapt to signal machines with different distances, and can be installed and used immediately after construction.

Description

technical field [0001] The invention belongs to the technical field of high-reliability lighting and traffic signals, and relates to a supervision drive circuit, in particular to a load supervision drive circuit. Background technique [0002] LED light is a new type of light source with low energy consumption and long life. In order to increase the luminous flux and improve reliability, it is usually composed of multiple LED tubes in series and parallel. The LED tube itself is driven by DC current. When the LED lamp is also powered by DC current, it only needs a simple connection, and the reliability is very high. LED lights are used outdoors, such as railway and highway signal lights. Considering the convenience and long-distance power transmission, the AC220V power supply is currently used, and the power supply device is converted into DC lighting, and the power supply device is installed next to the LED lights, or as the LED lights. component. [0003] However, LED lam...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B45/10
Inventor 马全松
Owner SHANGHAI TIEDA ELECTRONICS & INFORMATION TECH CO LTD
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