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Electronic ballast for at least one lamp

A technology of electronic ballasts and capacitors, applied in the direction of high-efficiency power electronic conversion, electric light sources, electrical components, etc., can solve problems such as uneconomical and heat problems

Inactive Publication Date: 2006-12-20
PATENT TREUHAND GESELLSCHAFT FUR ELECTRIC GLUEHLAMPEN MBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this solution is very uneconomical in the case of multi-watt installations and also often leads to thermal problems

Method used

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  • Electronic ballast for at least one lamp
  • Electronic ballast for at least one lamp

Examples

Experimental program
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Embodiment Construction

[0019] FIG. 1 shows a schematic diagram of an electronic ballast according to the invention, details relevant to the invention. In this case, the lamp La is connected via an inductance L1 to the center point M of a half-bridge circuit comprising switches S1 and S2. Each switch S1 and S2 has a working terminal, a reference terminal and a control input terminal, only the terminals of the switch S1 are shown in the enlarged view in FIG. 1 , namely the working terminal A1, the reference terminal B1 and the control input terminal St1. In the case of switch S2, compared to switch S1, the working and reference terminals are swapped, that is, the reference terminal is on the upper part and the working terminal is on the bottom, that is, both working terminals are connected to the half-bridge center point M . The two electrodes E1, E2 of the lamp La pass through the coupling capacitor C K1 and C K2 is connected to ground potential as reference potential. The auxiliary unit 10 has a...

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PUM

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Abstract

The present invention relates to an electronic ballast for at least one lamp (La) having at least one first switch (S1), the first switch (S1) having at least one working terminal (A1), a reference terminal (B1) and a control input terminal (St1), and at least one auxiliary unit (10), the auxiliary unit (10) having a supply terminal (V1), the supply terminal (V1) of the auxiliary unit (10) being coupled to the working terminal (A1) of the first switch (S1) via a supply unit (12), which comprises at least one inductance (L2).

Description

technical field [0001] The invention relates to an electronic ballast for at least one lamp, having at least one first switch with at least one working terminal, a reference terminal and a control input terminal and having at least one auxiliary unit, the first switch having at least one working terminal, a reference terminal and a control input terminal, the At least one auxiliary unit has power terminals. Background technique [0002] Such electronic ballasts are known from the relevant prior art, the auxiliary unit can take on different functions, for example it takes on the following functions: actuating at least one first switch, performing end-of-life monitoring, monitoring for overvoltages, overtemperatures or Various control tasks are monitored and so on. [0003] In the case of a large number of electronic ballasts known from the prior art, a second switch is provided in addition to the first switch, and this second switch is arranged together with the first switch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B41/282H05B41/14H02M1/34
CPCH02M2001/0006Y02B70/1466Y02B70/1425H05B41/2825H02M1/34H02M2001/346H02M3/156Y02B70/1491H02M3/1588H02M1/0006H02M1/346Y02B70/10H05B41/02H05B41/14
Inventor M·赫克曼
Owner PATENT TREUHAND GESELLSCHAFT FUR ELECTRIC GLUEHLAMPEN MBH