可控电抗器APEX大功率运算放大器实现

APEX High Power Operational Amplifier Realized by Controlled Reactor

分析了回转器与电容器实现功率可控电感器存在电阻消耗功率的技术难题。基于目前技术大功率回转器无法实现的问题,提出了用阻抗变换方法实现功率可控电感器(即可控电抗器),给出了可控电抗器运算放大器实现电路,分析了可控电抗器运算放大器实现电路原理和运算放大器的选择。由于可控电抗器运算放大器实现电路中不存在电阻,仅有功耗很低的电容器和A-PEX运算放大器,所以实现可控电抗器具有功耗低的特点。

This paper analyzes technology challenges that the gyrator and capacitor realize power controlled inductors existing resistance power consumption.Based on the current technology,the problem of rotary device applying on the field of high-power can not be achieved.Made with impedance transforming method to realize power-controllable inductors（controlled reactor）,we also give controllable reactor operational amplifier circuits,and analyze the implementation of reactor operation amplifier circuit theory and operational amplifiers selection.As the controlled reactor operational amplifier circuit does not exist resistance,but exist power capacitors and APEX operational amplifiers which consume low power,this paper realizes the controllable reactor with features of low power.