I picked up some TDKLamda 500W power modules PFE700-48 surplus and I want to use two of them to provide roughly plus and minus 52 volts to power a couple Class D audio power amplifiers. The datasheet hookup diagram shows a schematic connecting to the AC line through a couple common mode chokes and several capacitors to ground and across the line powering a single PFE700-48 module. But it doesn't cover the input filter set-up when using 2 modules.
Do I need to duplicate such a line filter for the AC input to EACH module, or can they share at least some components? These modules provide both power-factor correction and semi-regulation in the same module.
Here's a link to the shiny datasheet with the schematic on page 2.
http://www.us.tdk-lambda.com/ftp/specs/pfe.pdf
(The fatter 20 page datasheet shows the same hookup for the PFE700 series except some component value changes, but doesn't address the question).
Thoughts?
Bart
Do I need to duplicate such a line filter for the AC input to EACH module, or can they share at least some components? These modules provide both power-factor correction and semi-regulation in the same module.
Here's a link to the shiny datasheet with the schematic on page 2.
http://www.us.tdk-lambda.com/ftp/specs/pfe.pdf
(The fatter 20 page datasheet shows the same hookup for the PFE700 series except some component value changes, but doesn't address the question).
Thoughts?
Bart