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Circuit arrangement for operating at least one discharge lamp and at least one LED

A circuit device and discharge lamp technology, applied in the field of circuit devices, can solve problems such as insufficiency, and achieve the effect of expanding bandwidth

Inactive Publication Date: 2013-01-30
OSRAM GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, there is no galvanic isolation between the AC mains voltage and the LEDs, so that the circuit arrangement does not meet the so-called SELV (Safety Extra Low Voltage) requirements, which are common in LED operating systems

Method used

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  • Circuit arrangement for operating at least one discharge lamp and at least one LED
  • Circuit arrangement for operating at least one discharge lamp and at least one LED
  • Circuit arrangement for operating at least one discharge lamp and at least one LED

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Embodiment Construction

[0028] In the following, the same reference numerals are used for identical and identically acting components. Therefore, the devices are described only once.

[0029] figure 1 A schematic diagram of a first exemplary embodiment of a circuit arrangement 10 according to the invention is shown. Especially for the AC mains voltage U of the mains voltage NConnection is possible at an input with a first input terminal E1 and a second input terminal E2. This is followed by a first rectifier comprising diodes D7, D8, D9 and D10. A line filter can be connected upstream of the rectifiers D7 to D10. Connected to the rectifier is a boost converter comprising an inductor L2, a diode D12 and an electronic switch Q3 with a control input S3. The control of boost converters is generally known and therefore will not be discussed further here.

[0030] The voltage provided at the output of the boost converter is stored in capacitor C1. The voltage U is reduced by capacitor C1 Zw Often r...

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Abstract

The invention relates to a circuit arrangement (10) for operating at least one discharge lamp (FL1) and at least one LED (D5, D6, Dn), wherein the connection of the LEDs has so-called SELV insulation.

Description

technical field [0001] The invention relates to a circuit arrangement for operating at least one discharge lamp and at least one LED, said circuit arrangement comprising an input with a first and a second input terminal for connection to an AC mains voltage ; a first output with a first and a second output terminal for connection to at least one discharge lamp; a second output with a third and a fourth output terminals for connection with at least one LED; a first rectifier, a rectifier input terminal and a rectifier output terminal, the rectifier input terminal comprising a first rectifier input terminal and a second rectifier input terminal, the rectifier output terminal With a first rectifier output terminal and a second rectifier output terminal, wherein the first rectifier input terminal is connected to the first input terminal and the second rectifier input terminal is connected to the second input terminal, and the rectifier output terminal is connected to the first and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B35/00
CPCH05B35/00
Inventor 托马斯·波利斯昌斯基
Owner OSRAM GMBH
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