Safety Warning
High voltage power supplies present a serious risk of personal injury if not used in accordance with design and/or use specifications, if used in applications on products for which they are not intended or designed, or if they are used by untrained or unqualified personnel.
For more information, please refer to the EMCO Safety Warning and Disclaimer located at: http://www.emcohighvoltage.com/pdfs/Safety-Warning-Concern-HV-3460B.pdf.
General Information
Internal to all EMCO units is a small input capacitor. Adding an additional capacitor externally across the input pins can provide performance enhancements.
This external capacitor reduces the reflected ripple on the input supply lines and decreases the amount of work being done by the small capacitor inside the unit. A slight increase in efficiency and decrease in output ripple might also be observed.
See the link below to download the full application note.