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Overcurrent self-protection safety output circuit and its application method, laser radar

An overcurrent protection circuit and safety output technology, which is applied in the direction of overcurrent protection, can solve the problems of long response time of overcurrent protection, low safety and anti-interference, and achieve fast response of overcurrent protection, Improved safety and anti-interference effects

Active Publication Date: 2020-08-11
WUHAN WANJI INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides an over-current self-protection safety output circuit and its use method, and laser radar, so as to at least solve the over-current processing method of the existing circuit, the response time of the over-current protection is longer, and the safety and anti-interference less technical issues

Method used

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  • Overcurrent self-protection safety output circuit and its application method, laser radar
  • Overcurrent self-protection safety output circuit and its application method, laser radar
  • Overcurrent self-protection safety output circuit and its application method, laser radar

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Embodiment 1

[0027] According to an embodiment of the present invention, an embodiment of an overcurrent self-protection safety output circuit is provided, figure 1 is a structural schematic diagram of an overcurrent self-protection safety output circuit according to an embodiment of the present invention, as shown in figure 1 As shown, the above-mentioned overcurrent self-protection safety output circuit includes: a main control circuit 100, a push-pull output circuit 101 and an overcurrent protection circuit 102; wherein:

[0028] The above-mentioned main control circuit 100 is used to output a control signal to the above-mentioned push-pull output circuit; the above-mentioned push-pull output circuit 101 is connected to the above-mentioned main control circuit 100, and is used to output a high-level signal to the control device according to the above-mentioned control signal; the above-mentioned The overcurrent protection circuit 102 is connected with the above-mentioned push-pull outpu...

Embodiment 2

[0053] According to an embodiment of the present invention, an embodiment of a method for using an overcurrent self-protection safety output circuit is provided. It should be noted that the steps shown in the flow chart of the accompanying drawings can be implemented in a computer such as a set of computer-executable instructions system, and, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0054] It should be noted that the above-mentioned over-current self-protection safety output circuit includes: a main control circuit, a push-pull output circuit and an over-current protection circuit, the above-mentioned push-pull output circuit is connected to the above-mentioned main control circuit, and the above-mentioned over-current protection circuit Pull output circuit connected. Figure 4 It is a flowchart of a method for using an overcurrent self-protectio...

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Abstract

The invention discloses an overcurrent self-protection safety output circuit and an application method thereof, and a laser radar. The overcurrent self-protection safety output circuit includes a maincontrol circuit, a push-pull output circuit and an overcurrent protection circuit, wherein the main control circuit is used for outputting a control signal to the push-pull output circuit, the push-pull output circuit is connected with the main control circuit and is used for outputting a high level signal to control equipment according to the control signal, and the overcurrent protection circuit is connected with the push-pull output circuit and is used for monitoring the magnitude of a load current in real time and performing overcurrent protection for the main control circuit and the push-pull output circuit when the load current is greater than the preset threshold. The overcurrent self-protection safety output circuit is advantaged in that technical problems of relatively long response time of overcurrent protection and relatively low safety and anti-interference performance of a circuit overcurrent processing method in the prior art are solved.

Description

technical field [0001] The invention relates to the field of overcurrent protection of circuits, in particular to an overcurrent self-protection safety output circuit, a method for using the same, and a laser radar. Background technique [0002] In the field of safe laser control, it is necessary to use the level value of a certain output interface of the laser radar to control the work of external devices. In actual use, the current of the control circuit may be too large due to improper operation, and the safety laser may be burned. The situation of the radar control circuit, thus causing the occurrence of safety accidents. [0003] At present, the current over-current processing method of the existing circuit generally uses a self-recovery fuse or a sampling resistor combined with AD sampling processing on the software to judge the over-current situation of the circuit. The response time of the over-current protection is long, and the safety and anti-interference Sex is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02H3/08
CPCH02H3/08
Inventor 冯奥凯杨俊古小枫张士英
Owner WUHAN WANJI INFORMATION TECH
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