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Control and/or regulating means, circuit assembly, and method for actuating light-emitting diodes in a light-emitting diode field

A light-emitting diode, open-loop control technology, applied in the direction of electrical components, etc., can solve problems such as EMV and improve power supply requirements

Pending Publication Date: 2021-10-26
海拉有限双合股份公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This in turn raises the requirements for powering these systems and can lead to EMV issues

Method used

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  • Control and/or regulating means, circuit assembly, and method for actuating light-emitting diodes in a light-emitting diode field
  • Control and/or regulating means, circuit assembly, and method for actuating light-emitting diodes in a light-emitting diode field
  • Control and/or regulating means, circuit assembly, and method for actuating light-emitting diodes in a light-emitting diode field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0044] exist figure 1 The circuit arrangement 6 according to the invention shown in , comprises a light-emitting diode field 7 formed from two series circuits 1 , 2 . Each series circuit 1 , 2 comprises a light emitting diode 3 , a resistor 4 and a controllable switching element 5 .

[0045] The first series circuit 1 and the second series circuit 2 will be referred to below, corresponding to the notations of the names of the components.

[0046] The series circuits 1, 2 are connected in parallel. The light-emitting diodes 3 are arranged within the series circuit 1 , 2 in such a way that their anodes lie at a common node. Resistor 4 is arranged between diode 3 and controllable switching element 5 . In addition to the light-emitting diode field 7 , the circuit arrangement 6 according to the invention also includes a power supply 8 . The power supply 8 is a controllable power supply.

[0047] Furthermore, open-loop and / or closed-loop control means 9 according to the invention...

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PUM

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Abstract

The invention relates to a control and / or regulating means for controlling and / or regulating a light-emitting diode field with n light-emitting diodes, comprising outputs at which control and / or regulating signals can be tapped in order to control and / or regulate controllable switching elements. Switch-on times and / or switch-off times of pulses can be defined by the control and / or regulating means using the control signals and / or regulating signals, and one and / or more controllable switching elements can be actuated during the ascertained pulse for an opening or closing process. A number of k groups can be defined or is defined, and each LED is assigned to one of the k groups such that each of the k groups mj contains light-emitting diodes, wherein 1 <= j <= k, formula I is (FI), and the ascertained switch-on times and / or switch-off times of the pulses of each group are defined by the control and / or regulating means such that the pulses overlap as little as possible.

Description

technical field [0001] The invention relates to an open-loop control and / or closed-loop control device for open-loop control and / or closed-loop control of a light-emitting diode field, said open-loop control and / or closed-loop control device having an output on which The open-loop control and / or closed-loop control signal for the open-loop control and / or closed-loop control of the controllable switching element can be intercepted (abgreifbar), wherein the on-time and / or off-time of the pulse can be controlled via the open-loop control signal and A / or a closed-loop control signal is defined and can drive one and / or more controllable switching elements to close or open during the determined pulses. A circuit arrangement and a method for operating the circuit arrangement. Background technique [0002] In the LED field, the brightness of each individual LED is controlled via a pulse width modulated (current) signal with pulses of pulse width PW=0 to 100%. [0003] The usual pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B45/32
CPCH05B45/46H05B45/32H05B45/14H05B45/325
Inventor D·耐特菲尔德
Owner 海拉有限双合股份公司