T
TKM
- Jan 1, 1970
- 0
Recently, there was a discussion here about CFLs, power factor and flicker.
Now a lighting designer colleague has asked me if high PF and low RF
emissions are possible in the same self-ballasted CFL.
It seems to me like these are two separate issues. One involves the design
of the power circuit; the other the design of the high-frequency ballast
circuit and how well the parts are shielded or act like antennae. I know
that CFLs sold in the U.S. have to meet fairly tight consumer RF emission
limits; but there are no high PF products listed -- at least by the major
manufacturers. 0.6 PF is the highest that I can find. Anyone know of any
CFL high PF products or any reason that there can't be high PF and low RFI
too?
Terry McGowan
Now a lighting designer colleague has asked me if high PF and low RF
emissions are possible in the same self-ballasted CFL.
It seems to me like these are two separate issues. One involves the design
of the power circuit; the other the design of the high-frequency ballast
circuit and how well the parts are shielded or act like antennae. I know
that CFLs sold in the U.S. have to meet fairly tight consumer RF emission
limits; but there are no high PF products listed -- at least by the major
manufacturers. 0.6 PF is the highest that I can find. Anyone know of any
CFL high PF products or any reason that there can't be high PF and low RFI
too?
Terry McGowan