Answer:
1. The LVD lamp really can work on 50Hz or 60Hz, that't the current frequency, because it's induction lamp,the lamp work is not related with this frequency.
The theory of LVD lamp is:
power suply to AC ballast, the ballast is IC chip ballast, it's not the same as the normal electronic ballast.
IC function is to produce steady 210khz frequency.
The 210khz frequency can produce inductin energy through the coil around the megnetic core arround the tube, it will couple the energe into the tube, produce DC current in the tube, then light the bulb.
So 210khz is higher frequency then other electronic ballast, but belong low frequency in those induction lamps.
Philips QL induction lamp works at 2.65mHz, so much higher.
Ofcourse lower frquency is easy for EMI filter.
IC chip has the function to screem the EMI through the tube, so no radio interference.
We also use aluminum cover to cover the megnic core and the coil.
IC chip produce ready frequency, so the lamp's lumen output is steady too.
Questions:
Carton marks of LVD ballast frequency parameter: "50Hz~60Hz", The description is not exact.Maybe our client think the product frequency is from 50Hz to 60Hz,Pls improve it like description of Lamp carton box.
- 1) What is the differences between the electronic ballasts on the market and the LVD ballast?
- 2)Why the LVD ballasts work in 210KHz? What is the benefit?
- 3)210KHz is low or high frequency in comparison between the electronic ballasts on the market?
- 4)The flickerless effect is a result of the frequency that the LVD ballast works? In case of not, what causes it?