Invention Grant
- Patent Title: Method for reducing the maximum demand of the current received by an LED matrix
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Application No.: US16792148Application Date: 2020-02-14
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Publication No.: US11197358B2Publication Date: 2021-12-07
- Inventor: Shaham Nemati , Dieter Nietfeld , Jacek Roslak
- Applicant: HELLA GmbH & Co. KGaA
- Applicant Address: DE Lippstadt
- Assignee: HELLA GmbH & Co. KGaA
- Current Assignee: HELLA GmbH & Co. KGaA
- Current Assignee Address: DE Lippstadt
- Agency: Muncy, Geissler, Olds & Lowe, P.C.
- Priority: DE102019103755.7 20190214
- Main IPC: H05B45/345
- IPC: H05B45/345 ; H05B45/10

Abstract:
A method for reducing the maximum demand of the current received by an LED matrix from a current source. Each LED of the LED matrix receiving a pulse width-modulated current from the current source, an activation period being assigned to each LED in an elementary period of the pulse width-modulated current, and/or a deactivation period is assigned, in which no current flows through the LED, the activation period and the deactivation period being able to be equal in length or shorter than the elementary period, and in the case that the activation period assigned to one of the LEDs and the deactivation period assigned to this LED are shorter than an elementary period, the activation period begins at an activation point in time and ends at a deactivation point in time, and the deactivation period begins at the deactivation point in time and ends at the activation point in time.
Public/Granted literature
- US20200267816A1 METHOD FOR REDUCING THE MAXIMUM DEMAND OF THE CURRENT RECEIVED BY AN LED MATRIX Public/Granted day:2020-08-20
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