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Voltage stabilizing device, protection method and communication bus power source device

A technology of voltage stabilizer and protection module, applied in the direction of adjusting electrical variables, control/regulating systems, instruments, etc., can solve the problems of overheating and chip damage of voltage stabilizer chips, and achieve the effect of improving overcurrent

Active Publication Date: 2017-05-31
WUHAN SAN FRAN ELECTRONICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If there is a short circuit for a long time, it will cause the internal voltage regulator chip to overheat, which will easily cause damage to the chip inside the voltage regulator device.

Method used

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  • Voltage stabilizing device, protection method and communication bus power source device
  • Voltage stabilizing device, protection method and communication bus power source device
  • Voltage stabilizing device, protection method and communication bus power source device

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Embodiment Construction

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0022] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...

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Abstract

The embodiment of the invention provides a voltage stabilizing device, a protection method and a communication bus power source device, and belongs to the field of electronic technological equipment. The voltage stabilizing device comprises a voltage stabilizing module, a protecting module and a voltage adjusting module. An input end of the voltage stabilizing module is used for being coupled with an external power source, an output end of the voltage stabilizing module is used for being coupled with an input end of the protecting module, an output end of the protecting module is used for being coupled with an external load, a first control end of the voltage adjusting module is coupled with the output end of the protecting module, and a second control end of the voltage adjusting module is coupled with the output end and an adjusting end of the voltage stabilizing module repsectively. After the external load is short-circuit, even if the stabilizing voltage output by the voltage stabilizing module is totally exerted on the protecting module, the power of the protecting module is not bigger than the rate power of the protecting module itself, a circuit cannot be damaged, and further, overvoltage and overcurrent protection for the stabilizing device for a long time can be achieved after the external load is short-circuit. Thus, the functions of overcurrent and overheat protection and the like of the voltage stabilizing device are drastically improved.

Description

technical field [0001] The invention relates to the field of electronic technical equipment, in particular to a voltage stabilizing device, a protection method, and a communication bus power supply device. Background technique [0002] The voltage stabilizing device is an electronic device that provides a stable voltage to the load by stabilizing the input power supply, and its output voltage does not change due to fluctuations in the grid voltage. [0003] At present, the voltage stabilizing devices used in the market are generally voltage stabilizing devices with a fixed output voltage, and their scope of application is limited due to the non-adjustable output voltage. With the technical development and progress of voltage stabilizing devices, some adjustable voltage stabilizing devices with adjustable output voltage have also appeared on the market. The adjustable voltage stabilizing devices can realize a wide range of voltage and current regulation. In the prior art, bo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05F1/565
CPCG05F1/565
Inventor 李中泽杨飞熊冰彭伟
Owner WUHAN SAN FRAN ELECTRONICS CO LTD
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