Star ground in an LCLC filter

ddroukas

Member
2016-02-15 6:38 pm
With a CLC or CRC filter, the first C is tied to the HT center tap—in isolation from the second C and remaining zero-volt line(s). However, in an LCLC filter, is there any benefit in grounding the first C in a similar fashion? My assumption is no, since the charging pulses are dramatically reduced, but I thought it couldn't hurt to ask.

Searching the forum didn't return much on the topic.
 

ddroukas

Member
2016-02-15 6:38 pm
Thanks for your input, DF96.

Let's phrase it this way: for those of you who've built LCLC in the past, how did you ground your filter caps? My upcoming build will be bridge rectified into an LCLC in a separate PSU. The only grounds in this box will be from the two 50uF filter caps, safety earth, the PT primary and secondary screens, and ground reference for the filaments. An umbilical will carry safety earth and the combined zero-volt lines from the amplifier chassis, in an arrangement like: http://www.diyaudio.com/forums/atta...nderstanding-star-grounding-good_ground_8.gif