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

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...

AI Technical Summary

Problems solved by technology

Because there is only one wire on the cable and a constant current value passes through it, it is extremely difficult to obtain the constant voltage source required by the load with the traditional method

Images