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Circuit arrangement for operating discharge lamp

A technology of circuit devices and discharge lamps, applied in lighting devices, electric light sources, electrical components, etc.

Inactive Publication Date: 2015-05-20
OSRAM GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Especially when the compressive strength has to be high, this leads to devices with extremely large structures

Method used

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  • Circuit arrangement for operating discharge lamp
  • Circuit arrangement for operating discharge lamp

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Embodiment Construction

[0041] The reference signs used in FIGS. 1a to 1d also apply further to the figure 2 An embodiment of a circuit arrangement according to the invention is schematically shown in . Therefore the components will not be described again.

[0042] exist figure 2 The embodiment of the circuit arrangement according to the invention shown in has a first input port E1 and a second input port E2 for connection to a mains direct voltage, in particular a so-called intermediate circuit Voltage U ZW . First connect the electrolytic capacitor C1 between the input ports E1 and E2 to ensure that U ZW of stability. A voltage divider comprising ohmic resistors R1 and R2 is connected in parallel with capacitor C1. The tap of the voltage divider R1, R2, namely the voltage UR2, is connected to the input E2 of the control unit μC. Furthermore, an inverter is connected between the inputs E1 and E2, which inverter is implemented in the invention as a half-bridge circuit. Wherein, the half-bridg...

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PUM

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Abstract

The invention relates to a circuit arrangement for operating a discharge lamp (FL). The coils (Wh, Wc) of the lamp are heated using a conductor (TR1). In order to identify the lamp, one coil of the conductor is bridged by a resistor (R5).

Description

technical field [0001] The invention relates to a circuit arrangement for operating a discharge lamp comprising: a first port and a second port for connection to a mains DC voltage; an inverter with a bridge circuit comprising at least a first electronic switch and a second electronic switch, wherein a first bridge midpoint is provided between the first electronic switch and the second electronic switch, wherein the series circuit formed by the first electronic switch and the second electronic switch is connected to the Between a first port and a second port of a voltage; a control device for controlling at least a first electronic switch and a second electronic switch; a first port and a second port for connection with a hot filament of a discharge lamp; having a first port and a second port inductor, wherein the first port of the inductor is connected to the first bridge midpoint, wherein the second port of the inductor is connected to the first port for the hot filament of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B41/295H05B41/298
CPCH05B41/295H05B41/2985
Inventor 西格弗里德·迈尔奥拉夫·布塞马克西米利安·格贝尔尤利娅·埃格丁格
Owner OSRAM GMBH
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