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A low-cost DC power carrier communication bus circuit

A technology of power carrier communication and bus circuit, applied in the field of communication bus, can solve the problems of slow response speed, high bit error rate and high equipment cost, and achieve the effect of saving construction cost

Active Publication Date: 2018-06-26
SHANGHAI PARASOL RENEWABLE ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Generally, low-cost DC power carrier communication is only suitable for low-power load power supply. The existing low-cost DC power carrier communication technology is usually used in low-power load conditions and the power line and the first line share two Wires, which will lead to problems such as high equipment cost, high bit error rate and slow response speed in the communication process

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  • A low-cost DC power carrier communication bus circuit

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Embodiment Construction

[0012] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0013] see figure 1 , the present invention provides a technical solution: a low-cost DC power carrier communication bus circuit, including a first route 1, a second route 2 and a third route 3, the first route 1 is connected with a resistor R7 10 and an operational amplifier U2 14, the operational amplifier U2 14 is composed of an amplifier or a differential amplifier of a discrete device, a resistor R8 11 is set between the resistor R7 10 and the operational...

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Abstract

The present invention discloses a low-cost direct current power carrier communication bus circuit. The circuit includes a first line, a second line and a third line. The first line is connected with a resistor R7 and an operational amplifier U2. The input end of the resistor R7 is connected with a voltage access point. A collector of a transistor Q1 is connected with the first line. An emitter of the transistor Q1 is connected with a resistor R10. The emitter of the transistor Q1 is connected with a voltage grounded point. The third line is connected with a resistor Q4. A non-inverting input end of an operational amplifier U1 is connected with the first line. The output end of a resistor R3 is connected with the voltage grounded point. The circuit can be applied to large power load, and realizes carrier bus communication. The third line cooperates with the other two lines to complete communication. Compared with all existing site buses, the circuit has the absolute advantage in material cost, and saves the construction cost.

Description

technical field [0001] The invention relates to the technical field of communication bus, in particular to a low-cost DC power carrier communication bus circuit. Background technique [0002] Generally, low-cost DC power carrier communication is only suitable for low-power load power supply. The existing low-cost DC power carrier communication technology is usually used in low-power load conditions and the power line and the first line share two Wires, which will lead to problems such as high equipment cost, high bit error rate and slow response speed in the communication process. Contents of the invention [0003] The purpose of the present invention is to provide a low-cost DC power carrier communication bus circuit to solve the problems raised in the above-mentioned background technology. [0004] In order to achieve the above object, the present invention provides the following technical solutions: a low-cost DC power carrier communication bus circuit, including a fir...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B3/54H04B3/56
CPCH04B3/54H04B3/56
Inventor 宋奕魏丽娟陈煜达游思梁曾元沈平单建涛
Owner SHANGHAI PARASOL RENEWABLE ENERGY CO LTD