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Fiber Optic Media Coverters Advantage

Edit:Aifon Technology Co.,Ltd      Date:May 10, 2017

Optical fiber media converter, is the source of the information issued by a certain purpose to transform. Matrix optical fiber media converter is a new type of AC-AC power fiber media converter. Compared with the traditional fiber-optic media converter, it has the following advantages: no need for intermediate DC energy storage link; Fiber Optic Media Coverters to four quadrant operation; with excellent input current waveform and output voltage waveform; free control of the power factor. Matrix optical fiber media converter has become one of the hotspots in power electronic technology research, and has a wide range of application prospects.

As a new type of AC-AC power supply, Matrix Converter has been proposed as a circuit topology, but until 1979 the Italian scholar M.Venturini and A. Alesina proposed the theory of matrix fiber-optic media converter and Control strategy, its characteristics only for people's attention and research. Fiber Optic Media Coverters Commonly used is a semi-controlled power device thyristor. The use of such devices to form a matrix optical fiber media converter, the control is very difficult. The hardware characteristics of matrix-type fiber-optic media converters are required

High-capacity, high switching frequency, power devices with bidirectional blocking capability and self-shut-off capability. At the same time, due to the complexity of the control scheme, Fiber Optic Media Coverters a microprocessor with fast processing capability is required as a control unit, which is an early semiconductor process and Technical level is difficult to achieve. Therefore, the research of matrix optical fiber media converter in this period mainly focuses on the topology of the main circuit and the realization of bidirectional switch. Most of them are in the theoretical research stage, and there are few studies for industrial reality. High operating frequency, low control power of the full control of power devices such as BJT, IGBT and other emerging, to promote the matrix optical fiber media converter control strategy research.

Modular Fiber Media Converter

The modulo fiber optic media converter comprises a first transmission circuit which receives the input voltage and the output clock signal, the phase shift of the clock signal, the second transmission circuit receives the reference voltage and the input clock signal, and outputs the reference clock signal, The phase shift of the clock signal, depending on the reference voltage, compares the output clock signal with the reference clock signal to the comparator output of a data card output signal

DC - DC fiber media converter

DC-DC fiber media converter has three inductors, two capacitors, a main switch and a secondary switch, a main rectifier and a secondary rectifier, and a transformer with a primary winding and a secondary winding. The main switch and the secondary switch are alternately turned on in accordance with the control signal, and the current flows through the primary winding of the transformer. Therefore, the transfer energy is transferred to the secondary winding, Fiber Optic Media Coverters a main rectifier and a secondary rectifier are operated in accordance with the energy converted from the primary winding After a fixed current through the third inductor, the output is fixed to the DC voltage.

High Power Factor Half Bridge Optical Fiber Converter

Half-bridgeconverterwithhighpowerfactor (U.S. Application Patent 20030076699, dated: 2002/10/18)

A high power factor half bridge optical fiber converter is proposed. The half bridge optical fiber converter has a bridge diode unit to provide a current path through the power factor boost unit to transmit energy to the voltage smoothing capacitor. The voltage smoothing capacitor stores the energy provided by the bridge diode unit. The switch unit has two switches in series with the two ends of the voltage smoothing capacitor. Wherein the power factor increases the common connection point voltage of the unit supply switch, and the conversion unit is fed back to the common connection point of the input capacitor in order to change the input current in accordance with the input voltage value. Reducing the conduction loss of the half-bridge fiber-optic media converter in the switching unit increases the power factor at the input.

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