the contact

Double-loop power control CO2 laser research and design


From Figure 6 voltage and current loop control diagram. To v · l5 · Hui reported that the amount of research and design of the first 33 volumes small. TL431 reference voltage generated by the (: 2.5V), respectively, then b. High-frequency transformer is one of the difficulties of this research. By the double-loop comparator N, Nz reverse output,ralph lauren danmark, respectively, and from testing the transformer leakage inductance in the resonant process, therefore, affect the laser-resistance of the current signal (already converted to a voltage signal) and output power of the resonant frequency, high frequency transformer winding should be reasonable. In order to reduce the voltage divider to compare the sampling voltage, the output transformer output voltage error signal,ed hardy suomessa, reducing its insulation and process requirements, number and,ed hardy, then through Ⅷ, Ⅷ and become a current signal, using a composite full-wave voltage doubler rectifier output circuit. VLC isolated by optocoupler feedback to the quasi-resonant controller error amplifier voltage and current double closed-loop control with input voltage response of the reverse side, then control the UC3865 output frequency to maintain power fast, fast load response, etc. Therefore,ed hardy uk, the laser power be the source of constant current constant voltage output characteristics. UC3865 error amplifier within a more and more used. Loop control can more easily get access into the constant follower in the form of signal synthesis and regulation placed on the chip, the pressure of the external characteristics of constant power, so a good CO2 laser gas with the ease of design and control. Body glow discharge of static volt-ampere characteristics match. The above analysis, VD, VD is equivalent to a diode quasi-resonant soft-switching technology will be applied to the laser power, the composition of the mentioned tube frequency, the output voltage ripple is very good, Cao Bang, the output voltage control loop is low, the power supply frequency at constant work but also can greatly reduce the size of the transformer, the laser power output state; the other hand,ralph lauren outlet, voltage control loop output is high, the power source is increasingly on efficient, miniaturization trend has important value. Power supply output voltage in the constant region and a constant current output References: expectations are determined by the following two equations: [Man: Liang Zuoliang laser power circuit [M] * Beijing: Ordnance Industry Press :(),/ o - give an example. [2] Li. Power electronic equipment components and integrated circuits Application Guide (the first series in the 1R and R value should be made suitable. Resistance is too large volumes and a half. Semiconductor devices and their driver IC) [M1 · Beijing: Mechanical noise loss, down a ... i ... power efficiency. As the laser power output is high,fitch abercrombie, a15 ~ R16 should be a 0fA, Qunvkc. vec]. APEc, the use of multiple precision resistor in series to get. c. Basis. cPdig,ed hardy danmark, l988 two ll a 49. A 4 Conclusion thirty-three Zhu incentives for high power CO2 gas laser research conducted 1991,franklin and marshall,6 fl1 :28-37. ~ 'Design, several conclusions can be drawn as follows: [the original 51 PENG, Li Shimin, Wu Crane clear, and so on. HVDC CO: laser frequency a · CO2 gas laser with a high excitation power as zero-power inverter [J]. High Voltage Engineering, 1996, (3) :9-11. Current quasi-resonant soft-switching technology, the switching frequency than the PWM dimming OnDualControlPulseWidthModulated way power system is much higher, efficiency is improved. Traditional forsle0f. ofstchedP0wsppli [J]. Wi. Br. PWM power supply efficiency is generally about 70%, while the quasi-resonant power level AEGTelefunken, 1979,52 (5) :243-249. All efficiency of 82%. If the magnetic components of the circuit, rectifier filter [71 Yangzun Feng, Jia you xi. Current-controlled study of switching power supply [J]. Links and feedback compensation circuit to optimize the improvement,abercrombie danmark, efficiency can be further power electronics technology, 1996, (1) :44-46. Copy ten prisoners oath stone ◆ ■ hinder snapped wide ● ● capsule capsule containing the 17th China Welding Exposition copy in May 2003 will be held in Wuhan, the contents of the exposition will soon come together into a CD. China Welding Exposition including previous review, the exposition hall exhibition, all exhibitors introduce and product images. The CD will be during the General Assembly for the majority of the user industry issue. Currently, the disc is in preparation, and has begun to accept pre-readers, this CD-ROM advertising is seeking,ed hardy rea, the contact: Kuang Hui. Horse red. Andy King 16 * (in the ring welded News)

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