无工频输出变压器的交流稳压电源的研究

Reaserch of an AC Stabilized Voltage Supply with Transformerless Output

无工频输出变压器交流稳压电源系采用微机控制的智能化电源。它采用了波形组合技术,经过理论分析与具体解算,这样不但可使低次谐波基本消除,而且与其他波形调制方案相比失真系数较低,因而稳压电源系统既可革除体积较大的工频输出变压器,又可提高效率,波形亦符合要求。此外,调整微机的控制方案,可使这种电源构成交流稳流电源或调频调压电源,用途广泛。

The AC stabilized voltage supply with transformerless output is an in telligent device control led by a microcomouter. This paper deals with this AC source in which the waveform reconstruction technique is used. By theoritical analysis and real computation, this technique can not only eliminate lower freqeucy hamonics but also reduse deformation coeficient, compared with other waveform modulation cases. Meanwhile, this AC stabilized supply system can abolish the 50Hz frequency output transfomer which is larger in size and heavier in weight. Moreover, this kind of source can be changed into AC stabilized current supply or AC frequency and voltage regulator by regulating the control method. It may be applied in many areas.