Method and apparatus for driving a light emitting diode
First Claim
1. An apparatus comprising circuitry having an input and an output, said circuitry responding to application to said input of an alternating current input signal by producing at said output an output signal suitable for driving an electronic light generating element, said circuitry including a regulating section that includes a magnetic switch and that maintains a current flowing through said output substantially at a selected value.
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Accused Products
Abstract
An apparatus includes circuitry that responds to application to its input of an alternating current input signal by producing at its output an output signal suitable for driving an electronic light generating element. The circuitry includes a regulating section that has a magnetic switch and that causes a current flowing through the output to be maintained substantially at a selected value. A different aspect relates to a method for operating circuitry having an input, an output and a magnetic switch. The method includes causing the circuitry to respond to application to its input of an alternating current input signal by producing at its output an output signal suitable for driving an electronic light generating element, where the magnetic switch is used in regulating a current flowing through the output so as to maintain the current substantially at a selected value.
85 Citations
18 Claims
- 1. An apparatus comprising circuitry having an input and an output, said circuitry responding to application to said input of an alternating current input signal by producing at said output an output signal suitable for driving an electronic light generating element, said circuitry including a regulating section that includes a magnetic switch and that maintains a current flowing through said output substantially at a selected value.
- 12. A method of operating circuitry having an input, an output and a magnetic switch, comprising responding to application to said input of an alternating current input signal by producing at said output an output signal suitable for driving an electronic light generating element, including regulating a current flowing through said output in a manner that includes use of said magnetic switch, and that maintains the current flowing through said output substantially at a selected value.
Specification