DC output from the power supply is incorrect

[kkwan]

Hello,

Please help review attached simple power supply circuit and let me know why the measured DC voltage rails only +/-50V, but not 168V (by calculation)?  Any your comments will be appreciated!

Thanks,

Anadig   

[kkwan]

I just figured it out.  Problem solved!

Thanks,

[kkwan]

I thought I have solved this problem by using virtual diode models for D1~D4.   However, when replacing the virtual diodes with 1N5407 (from ON Semi PSPICE model) or other diode models in the NI Standard library, the DC output always at 50V regardless of what input AC voltage is?  Please help review the attached circuit and advise it if you can.

Thanks,

Anadig

[kkwan]

I think I resolved the problem again.  Thanks!