英语翻译The mains voltage is fed to the transformers of both cha

英语翻译
The mains voltage is fed to the transformers of both channels(TR1,TR2)through the switch S1.A fullwave rectifier with middle point in which the diodes are replaced by tyristors TYR1-TRY6 is used.The direct voltage is filtered by the capacitor C and fed to the input Uin of the base contro unit CU(see fig.2).
Each half of the base secondary winding has three sections.The commutation of the tyristors TYR1-TYR6 is controlled by CU(outputs T1-T6):at the beginning,when the output voltage increases from0,the tyristors TYR1 andTYR2 are operating(fed by the first sections of the secondary winding)and the direct voltage has a minimal value.With the increasing of the output voltage tyristors TYR3 and TYR4 are switched on and the direct voltage also increase,because they are supplied by the second sections of the base secondary winding.(Tyristors TYR1 and TYR2 switch off automatically because their cathode voltage is higher than the anode one.)At much higher output voltage the tyristors TYR5 and TYR6 are switched on and the direct voltage achieves its maximal value.When the output voltage is decreasing,the tyristors switches off in inverse order.The described method of tyristor control ensures minimal voltage drop on the regulating transistor Q and respectively minimal power losses and maximal efficiency.
The output voltage is regulated by the potentiometer P1.For this purpose it receives a stabilized reference voltage from the output UREF through the switch S2,by which the output voltage could be switch on and off.

中文：
扼要电压哺养到变压器两种渠道(TR1,TR2)通过与二极管由tyristors TYR1-TRY6替换使用的中间点的开关S1.A全波整流器.直接电压由电容器C过滤并且哺养对基本的contro单位古芝的输入Uin (参见fig.2).基本的二次绕组的Each一半有三个部分.tyristors TYR1-TYR6的换向是由CU (产品T1-T6)控制的：首先,当产品电压增加from0时,tyristors TYR1 andTYR2是操作(哺养由二次绕组的第一个部分),并且直接电压有最小的价值.增加产品电压tyristors TYR3和TYR4接通,并且直接电压也增加,因为他们由基本的二次绕组的第二个部分供应.(Tyristors TYR1和TYR2自动地关掉,因为他们的负极电压高于阳极一.)在更高的产品电压tyristors TYR5和TYR6被接通,并且直接电压达到它最大的价值.当产品电压是越来越少的时,tyristors按相反顺序关掉.tyristor控制被描述的方法保证在调控的晶体管Q的最小的电压下落和最小的功率损失和各自最大的效率.
The产品电压是由它从产品UREF为此接受被稳定的参考电压通过开关S2,产品电压可能是开关 on 和 off 的电位器P1.调控的.
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