Single-line constant-current/constant-voltage electric energy conversion method

An electric energy conversion, constant current to constant voltage technology, applied in the direction of constant current power supply DC circuit, output power conversion device, DC power input conversion to DC power output, etc. The effect of protection and enable output

Active Publication Date: 2015-10-07
HUNAN HAIDUN OPTICAL FIBER SENSING TECH ENG LAB
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Because there is only one wire on the cable and a constant current value passes through it, it is extr

Method used

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  • Single-line constant-current/constant-voltage electric energy conversion method
  • Single-line constant-current/constant-voltage electric energy conversion method
  • Single-line constant-current/constant-voltage electric energy conversion method

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Embodiment 1

[0056] The invention integrates a CC / CV conversion module, a 50mS uninterrupted power supply module, an overvoltage protection module, a soft start and enabling module, and an induced current bypass module generated by the earth's magnetic field and solar wind on one PCB board. Moreover, the output power of the constant voltage source can be easily adjusted and upgraded, and it has the function of electromagnetic compatibility (EMC).

[0057] Such as figure 2 The realization of the constant voltage source shown is obtained from the single-wire constant current source through the charging voltage value of the control capacitor, and its output power is determined by the constant current value passing through a single wire and the charging voltage value of the control capacitor. Realize the overvoltage protection of the constant voltage source and the soft start and enable output functions of the subsequent DC / DC module (such as Figure 4 shown). The voltage monitoring chip U1 ...

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Abstract

The invention discloses a single-line constant-current/constant-voltage electric energy conversion method. A single-line constant-current to constant-voltage electric energy conversion circuit is adopted. The single-line constant-current to constant-voltage electric energy conversion circuit acquires electric energy from a single-line constant current output channel, converts into a constant voltage and outputs. The single-line constant-current to constant-voltage electric energy conversion circuit comprises a current bypass, a CC/CV main circuit and a MOS pipe driving circuit. The CC/CV main circuit and the current bypass are connected in parallel and then are connected in series in the single-line constant current output channel. The current bypass comprises a NMOS pipe Q1 and a resistor R1. A D pole of the NMOS pipe Q1 is an input terminal of the current bypass. An S pole of the NMOS pipe Q1 is connected to one end of a resistor R. The other end of the resistor R is an output terminal of the current bypass. The CC/CV main circuit comprises a diode D1, capacitors C1and C2, a resistor R2 and a voltage-regulator tube D3. The single-line constant-current/constant-voltage electric energy conversion method is easy to carry out. A conception is ingenious and the method is especially suitable for being applied to a single line power supply occasion.

Description

technical field [0001] The invention relates to a single-line constant current / constant voltage electric energy conversion method. Background technique [0002] In the field of traditional DC power supply, whether it is a constant voltage source or a constant current source, two wires are used for power supply, that is, a power line and a return line. In the long-distance optical fiber communication, especially in the application of submarine optical fiber communication, due to the characteristics of single-line constant current power supply and the advantages of cost, photoelectric composite cables are mostly used. There is a layer of shielded copper tube on the photoelectric composite cable. The power supply of the load on the cable is realized by using this layer of copper tube to provide a constant current. It has only one wire, and its return line is realized by using sea water or the earth. Because there is only one wire on the cable and a certain constant current val...

Claims

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Application Information

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IPC IPC(8): H02M3/335H02J1/04
Inventor 夏建林李友如陶令胡艳红陈志才
Owner HUNAN HAIDUN OPTICAL FIBER SENSING TECH ENG LAB
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