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Power carrier wave communication line driver controlled by switch power supply constant power

A technology of power carrier communication and constant power control, applied in control/regulating systems, instruments, adjusting electrical variables, etc., can solve the problems of poor communication effect and only 1/120 efficiency, so as to reduce power consumption and balance effective power output and drive efficiency, improve the effect of communication

Inactive Publication Date: 2015-10-21
杨永
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AI Technical Summary

Problems solved by technology

[0008] In actual work, due to the limitation of the rated power of the power supply, the output current is only 0.1A, the output power is 0.01W, while the total power consumption reaches 12V*0.1A=1.2W, the internal resistance consumes 1.19W, and the efficiency is only 1 / 120
[0009] According to the analysis, the actual transmission power of the traditional circuit changes drastically with the line impedance, and the communication effect is poor

Method used

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  • Power carrier wave communication line driver controlled by switch power supply constant power
  • Power carrier wave communication line driver controlled by switch power supply constant power
  • Power carrier wave communication line driver controlled by switch power supply constant power

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Embodiment Construction

[0023] 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.

[0024] see Figure 1-6 , a power carrier communication line driver based on switching power supply constant power control, including switching power supply constant power control module Block1, power amplification module Block2, output signal coupling module Block3, the system power supply voltage VDD powers Block1, and Block1 outputs a dynamic The voltage VDD_PA, VDD_PA is connected to the power supply terminal of Block2, Block1 sends the signal VIN to Block2...

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Abstract

The invention discloses a power carrier wave communication line driver controlled by switch power supply constant power. The power carrier wave communication line driver controlled by switch power supply constant power comprises a switch power supply constant power control module block (1), a power amplification module block (2) and an output signal coupling module block (3). By the use of the power carrier wave communication line driver controlled by switch power supply constant power, effective power output and driving efficiency of a power line with various load resistance and communication effect is enhanced. Besides, dynamic power sent by a system can be remained within a restrict range when power supply power is certain, so damages to the system due to inadequate power supply power or excessive heat of the power supply can be avoided and the system can normally communicate under any conditions.

Description

technical field [0001] The invention relates to a line driver applied to power line carrier communication, in particular to a power carrier communication line driver based on switching power supply constant power control. Background technique [0002] Power line carrier communication is a communication technology that transmits information through power lines. The power line carrier communication system needs to convert the carrier frequency signal into a power signal coupled to the power line through a line driver. In order to regulate the use of power line channels, a series of standards have been issued at home and abroad to limit the power of equipment, as well as the harmonics and levels of transmitted signals, to avoid interference between equipment. [0003] The impedance of the power line varies greatly at different locations and at different times. It is generally believed that its range is from a few tenths of ohms to several hundred ohms. Therefore, the lo...

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Application Information

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IPC IPC(8): G05F1/66
CPCG05F1/66
Inventor 杨永
Owner 杨永
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