STUDY ON THE UNIFIED SAFTY MONITORING SYSTEM COMBINING THE INFORMATION COMMUNICATION NETWORK AND HIGH EFFICIENT POWER SUPPLY

1.信息通信系统采用超大规模集成电路或超大规模集成电路作为开关电源的负载。负载电流的转换速率高达几百安培/μS~三百安培/μS，因此要求DC-DC转换器具有较快的响应速度。结果表明，PCR型DC-DC转换器在负载电流响应方面优于PWM型DC-DC转换器。信息通信系统的电源对输入电压的精度要求很高。作为这种解决方案的一种，提出了DC-DC转换器的数字控制。另外，该数字控制方法在遥测遥控中也是很有用的。提出了一种声音信号与图像信号混合叠加的新型传输系统。结果，取得了较好的性能。在这种情况下，声音对应于柴油发电机的声音，图像是柴油发电机的图像。提出了一种新型混合微型燃料电池系统。采用锂离子电池构建混合动力系统。结果表明，微型燃料电池工作在最佳工作点，锂离子电池受到过充和过放电的保护，DC-DC转换器的功率效率高于90%。

1. The information and communication system is composed of VLSI or ULSI, which is the load of the switching power supply. The slew rate of the load current is as large as several one hundred ampere /μs 〜 three hundred ampere /μs. Therefore, the fast response is required in the dc-dc converter the response of PRC and PWM types of dc-dc converters are compared. As a result, the PRC type dc-dc converter is superior to the PWM ones for the response of the load current.2. The power supply of the information and communication system has to a high precision of the input voltage. As one of this solution, the digital control of dc-dc converter is presented. Also, the digital control method is useful in telemetering and tele-controlling.3. The new transmission system is presented, in which the sound signal and image one are mixed and superimposed. As a result, a relatively good performance is achieved. In this case, the sound is corresponding to that of the diesel generator and image is that of the diesel generator.4. The new hybrid micro-fuel cell system is presented. The lithium ion battery is used to construct the hybrid system. As a result, the micro-fuel cell operates at the optimum operating point, lithium ion battery is protected aginst overcharging and overdischarging, and the power efficiency of the dc-dc converter is higher than 90%.