Two-stage clocked electronic energy converter

An energy converter, electronic energy technology, applied in the direction of high-efficiency power electronic conversion, adjustment of electrical variables, output power conversion devices, etc., can solve the problems of ballast cost, material consumption, high consumption, etc. The effect of reducing failures and ensuring safe start-up

Inactive Publication Date: 2016-04-06
OSRAM GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is not only costly in developing a suitable ballast, but also entails additional costs and material consumption in the ballast

Method used

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  • Two-stage clocked electronic energy converter
  • Two-stage clocked electronic energy converter
  • Two-stage clocked electronic energy converter

Examples

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Embodiment Construction

[0048] As the usage time of an electrolytic capacitor increases, basically its actual usable capacitance decreases, and conversely, the ESR increases its value. In addition, environmental parameters have an influence on the ESR, for example at low temperatures the value of the ESR increases. exist figure 1 The equivalent circuit diagram for an electrolytic capacitor is shown in . An electrolytic capacitor, indicated generally at 10 , has an available capacitance 12 , to which an ESR 14 is connected in series. exist figure 1 The equivalent circuit diagram for electrolytic capacitors shown in is based on such applications in electronic ballasts with at least two stages. in accordance with Figure 4 In the illustrated two-stage electronic energy converter 20 , such electrolytic capacitors are used as intermediate circuit capacitors 28 .

[0049] figure 2 is shown with typical electrolytic capacitors, such as according to figure 1 Graphs of impedance and ESR measurement re...

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Abstract

The invention relates to a two-stage clocked electronic energy converter (20) for converting an electric power, comprising a first connection (38, 40) for connecting an electrical energy source, a second connection (42, 44) for connecting a consumer (46) and a DC link capacitor (28), wherein a first stage (1) of the two-stage clocked electronic energy converter (20) has a first converter in the boost operating mode which converts an electric voltage at the first connection (38, 40) into an electric DC link voltage at the DC link capacitor (28), and wherein the DC link capacitor (28) supplies a second stage (2) of the two-stage clocked electronic energy converter (20), said second stage supplying electrical energy to the consumer (46) in power-controllable fashion. In accordance with the invention, the energy converter has a control unit which is designed to set the power drawn from the DC link capacitor (28) by the second stage (2) such that an instantaneous minimum of the DC link voltage, which instantaneous minimum is effected by the power consumption, is greater than a preset voltage comparison value (50, 54).

Description

technical field [0001] The invention starts from a two-stage clocked electronic energy converter for the transmission of electrical power, with a first connection for connecting a power supply, a second connection for connecting a consumer and an intermediate circuit capacitor, wherein the two-stage clocked The first stage of the electronic energy converter has a first converter in step-up operation, which converts the voltage at the first terminal into an intermediate circuit voltage at the intermediate circuit capacitor, and wherein the intermediate circuit capacitor is a double-stage clocked electronic The second stage of the energy converter supplies power, and the second stage power supplies electrical energy to consumers in a controllable manner. Furthermore, the invention relates to an electrical connection with a luminous element and for connecting the luminous means to a power source. Finally, the invention relates to a method for operating a two-stage clocked electr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/158H02M1/42H02M1/36H02M1/00
CPCH02M1/36H02M1/4225H02M3/1582Y02B70/10H02M1/007H02M1/4208
Inventor 西格弗里德·迈尔奥拉夫·布塞马克西米利安·格贝尔霍斯特·韦尼
Owner OSRAM GMBH
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