Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
July 18, 2017
Patent Application Number
15080168
Date Filed
March 24, 2016
Patent Citations Received
Patent Primary Examiner
Patent abstract
A brightness control circuit for a DC-powered LED light uses a PWM generator. The LED brightness is a function of the duty cycle of a drive signal to a transistor connected in series with the LED. In several embodiments the duty cycle signal generated by the PWM is controlled by at least one momentary SPST switch, or, in one alternative, by first and second SPST switches operable in a make-before-break sequence in a voltage divider circuit.
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