Industry Patents
Patent: 7558081
Basic Halogen Convertor IC
(Click image for PDF of full patent)
| Patent Number: |
7558081 |
| Title: |
Basic Halogen Convertor IC |
| Abstract: |
A driving circuit for providing a control signal to a power semiconductor
device for providing power to a filament lamp, said driving circuit
comprising an oscillator for generating said control signal. The driving
circuit may further comprise a soft start circuit which controls said
oscillator so as to avoid excessive current in said lamp at start-up; a
voltage compensation circuit which controls said oscillator so as to
compensate for variations in load; a shutdown circuit for shutting down
and automatically restarting said oscillator in response to a fault
condition; an adaptive dead time circuit which controls said oscillator
for providing cool running of said power semiconductor device; and/or a
dimming circuit which controls said oscillator for driving said lamp. The
driving circuit and its control circuitry may be implemented in an
integrated circuit.
|
| Country of Issue: |
US |
| First Named Inventor: |
Green, Russ |
| Assignee: |
International Rectifier Corporation |
| Continuation or Divisional of: |
7321201 |
| International Classification: |
H02M 3/335 |
| US Classification: |
362/21.03 |
| Issue Date: |
07-07-2009 |
| Filing Date: |
11-15-2006 |
| Application : |
11/560216 |
| Notes: |
|
| Link to Patent at freepatentsonline.com: |
7558081 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
7558081 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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