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介绍了脉冲声光调制器用的驱动电源的设计与制作,研究了一种由高速开关二极管构成的脉冲调幅电路,使脉冲调制速率高达10兆赫以上.采用了TTL数字集成电路作为脉冲调幅电路的接口电路和驱动电源的辅助电路,使驱动电源具有实用性.本驱动电源的主要技术指标是:载频频率100兆赫;脉冲调制速率>5兆赫;调幅度~90%;等幅波输出功率>3瓦(负载电阻50欧).该驱动电源能与声光调制器一起用于高速激光记录和激光汉字照排等技术应用系统,其性能相当于国外七十年代初、中期水平.
The design and manufacture of driving power for pulse acoustooptic modulator are introduced.The pulse modulation circuit composed of high speed switching diode is researched to make the pulse modulation rate up to 10 MHz.The TTL digital integrated circuit is adopted as the interface of pulse amplitude modulation circuit Circuit and drive power supply auxiliary circuit, so that the drive power has practicality. The main technical indicators of the drive power supply are: carrier frequency 100 MHz; pulse modulation rate> 5 MHz; amplitude modulation ~ 90%; amplitude wave output power> 3 Watt (load resistance 50 Europe) .The driving power can be used together with the acousto-optic modulator for high-speed laser recording and laser technology, such as Chinese characters according to the system, its performance is equivalent to the foreign seventies early, medium level.