Aiming at the performance requirements of I/V transformation box supplying voltage for the digital power supply testing system

the experiment research of supplied voltage for the DCCT has been carried out.The results show that variation of precision for ±15 V can reach 0.1 %

and volatage output deviation of the DCCT can reach 3×10-6

4

×10-6 when the power supply voltage of the DCCT is ±15 V

and change of ± 15 V is less than ±5 %.The index can satisfy the requirement of test system.The experiment of the I/V transformation box has been also carried out to verify power supply voltage of the I/V transformation box to meet power supply voltage of the DCCT.The supplied voltage is ±15

V.Variation of ±15 V is less than ±5 %.And variation of precision of ±15 V can reach 0.01 %.This indicates that I/V transformation box can completely applied in two test systems to supply voltage for the DCCT.