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Remote power supply communication circuit based on forward topology

A communication circuit, long-distance technology, applied in the direction of electrical components, adjusting electrical variables, output power conversion devices, etc., can solve the problems of common ground, high cost, low safety and reliability, etc.

Inactive Publication Date: 2010-10-20
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, for a complete micro-grid, it is necessary to provide each control unit with a power line, a ground wire, and a data line for receiving and sending data. At least four lines are required, and the cost is relatively high. Moreover, the control circuit will share the same ground, which is safe and reliable. Low

Method used

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  • Remote power supply communication circuit based on forward topology
  • Remote power supply communication circuit based on forward topology
  • Remote power supply communication circuit based on forward topology

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Embodiment Construction

[0015] The circuit of the present invention: power supply, data reading, data sending, and realization of magnetic reset functions will be further described below through specific embodiments.

[0016] like figure 1 As shown, the long-distance power supply communication circuit based on the forward topology includes a power supply, a transformer connected to the power supply and an output circuit, wherein: the input winding terminal 1 of the transformer and the DC power supply 16 connected in series with a MOSFET switch tube 15 The connection line is set as a long-distance communication line, and the length of the long-distance communication line is 500-1000m; the optimum length of this embodiment is 1000m.

[0017] The present invention also adds a magnetic reset winding 2 at the output end of the original forward topology circuit transformer, and connects a data reading circuit A and a data sending circuit B in parallel on the output circuit; and the data reading circuit A a...

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Abstract

The invention discloses a remote power supply communication circuit based on forward topology, which comprises a power supply, and a transformer and an output circuit which are connected with the power supply, is characterized in that a connecting line of the end of an input winding (1) of the transformer and a DC power supply (16) in serial connection with a MOSFET switching tube (15) is set to be a remote communication line; an output winding (3) of the transformer is connected with a reset winding (2) in series; the output winding (3) of the transformer is connected with a data reading circuit (A) and a data transmitting circuit (B); and the data reading circuit and the data transmitting circuit are connected with a control unit DSP (10). The circuit can complete the function of feeding back the data to the multiplexing bus and reading the data, realize the multi-machine communication, realize the power supply isolation, and feed the magnetic reset energy to the load side in each period by setting a magnetic reset winding.

Description

technical field [0001] The invention relates to a forward circuit, in particular to a power communication circuit with dual functions of long-distance power supply and communication. Background technique [0002] In the field of new energy research, in order to ensure the safe and reliable operation of the micro-grid, the inverter unit, load unit, and energy storage unit contained in the micro-grid all need independent control circuits, which involves how to supply power to these control circuits. . At the same time, necessary communication is required between each control unit and with the upper control unit. Usually, for a complete micro-grid, it is necessary to provide each control unit with a power line, a ground wire, and a data line for receiving and sending data. At least four lines are required, and the cost is relatively high. Moreover, the control circuit will share the same ground, which is safe and reliable. Low. Contents of the invention [0003] The purpos...

Claims

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Application Information

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IPC IPC(8): H02M3/155
Inventor 卓放吴斌崔希志朱明琳孟良
Owner XI AN JIAOTONG UNIV
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