Industry Patents
Patent: 6794828
Driving Serially Connected High Intensity Discharge Lamps
(Click image for PDF of full patent)
| Patent Number: |
6794828 |
| Title: |
Driving Serially Connected High Intensity Discharge Lamps |
| Abstract: |
A lighting system (1) comprises a plurality of high intensity discharge
lamps (9, 39, 6) and an electronic control (2) having a power input (4),
an alternating current power output regulator (22), and an alternating
power output (3) having an output frequency arranged to be variable within
an output frequency range, the output having a first and a second output
line. The lamps are connected in series with each other so that the first
line is connected to the first electrode (11) of the first of the lamps,
the second electrode (12) of the first of the lamps is connected to the
first electrode (41) of the next lamp in the series, the second electrode
(13) of the final lamp in the series being connected to the second output
line. The lamps have an acoustic resonant frequency range and the output
frequency range of the control is arranged to be above the acoustic
resonant frequency range.
|
| Country of Issue: |
US |
| First Named Inventor: |
Tyson |
| Assignee: |
MicroLights |
| Continuation or Divisional of: |
|
| International Classification: |
H05B 37/00 |
| US Classification: |
315/244 |
| Issue Date: |
09-21-2004 |
| Filing Date: |
03-08-2001 |
| Application : |
10/221298 |
| Notes: |
|
| Link to Patent at freepatentsonline.com: |
6794828 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
6794828 at Google Patents |
1. The Google Patents and World Patent Family links will likely not work until a few weeks
after the patent has issued - they take a while to get new patents in their systems.
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