激励式射频解冻系统设计方案

THE DESIGN OF AUTO-FOLLW RF THAW SYSTEM

基于频率27.12 MHz的激励式射频解冻系统,用于解冻冷冻食品的效果很好.该系统主要包括大功率射频激励电路、电子管射频高压振荡电路及监控与显示电路3部分.引入大功率射频激励电路是该系统的一大特色,它产生的射频激励信号提供给电子管射频高压振荡电路,并用负反馈跟踪整个系统运行,调整射频激励信号,使整个系统运行稳定可靠.

Based on 27.12 MHz RF Auto-follow defrosts-system, thaw result of defrosting frozen food is perfect. There are three parts in this system such as high-power RF Auto-follow circuit, radio tube RF high-handed monofier, and monitor and show circuit. The characteristic of this paper is that high-power RF Auto-follow circuit is introduced in this system. RF Auto-follow signal produced by high-power RF Auto-follow circuit is provided to radio tube RF high-handed monofier, and it is adjusted reliably using negative feedback to track the running of all of the system.