模拟导弹热电池指示信号的电路设计与实现

Circuit Design and Realization of Simulating Missile Thermal Battery Index Signal

针对在发射装置测试过程中,正确稳定的模拟导弹热电池指示信号设计需求,提出了一种以VI-COR电源模块为基础的电路设计思路,给出了详细的理论计算和实际应用数据,验证了利用"调压"方式控制电路输出的可行性.此电路设计充分利用了VICOR电源模块的工作原理,并结合发射装置测试设备的自动化测试特点,通过计算选取合适阻值的电阻,由工业控制计算机控制VICOR电源模块调整端Trim的电压,实现了电路的自动化输出,且输出电压的变化值与控制电压的变化值之间符合线性变化的规律.此电路原理简单、工作稳定、实测值与理论值几乎一致,已经成功的在发射装置测试设备中得到应用,经过多项试验考核和用户反复使用,验证了其测试性和可靠性,可以作为成熟电路应用于其它测试设备.

In the testing process for launching device, simulating the missile thermal battery index signal accurately and steadily is demanded. Here we presented a circuit design based on VICOR power module, gave the particular theoretical calculation and application data, validated the feasibility of ＂trim voltage＂ for controlling OUTput. The circuit design chooses the fit resistor, controls the trim of VICOR power module by industry computer to realize auto-OUTput, and the variety of OUTput voltage is linear with the variety of control voltage. The circuit has simple principle, works steadily, and the actual testing value agrees with the theoreti- cal value. The experiments in the launcher test equipment successfully validated its testability and reliability, which shows that the circuit can be used in other test equipments as a mature circuit.