Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hidetoshi Watanabe0
Kazuyuki Hashimoto0
Date of Patent
October 22, 2019
0Patent Application Number
162552080
Date Filed
January 23, 2019
0Patent Citations Received
Patent Primary Examiner
Patent abstract
An LED driving circuit for illuminating a first LED unit is provided. The LED driving circuit includes: a data latch circuit, a current source, and a PWM circuit. The data latch circuit latches a data signal according to a first latch signal to generate a first control signal. The current source generates a constant current. The PWM circuit periodically passes the constant current through the first LED unit according to the first control signal and an enable signal.
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