High-voltage pulse generator and high-pressure discharge lamp having such a generator
A technology for pulse generators and high-pressure discharge lamps, which is applied in the direction of electric pulse generator circuits, energy storage components to generate pulses, circuits, etc., can solve the problems of performance loss of spiral pulse generators, and achieve easy breakdown, compact structure, high The effect of capacitance
Inactive Publication Date: 2010-03-24
OSRAM GMBH
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However, since most inductive materials are not good insulators, and the voltage U0 also exists on the inductive layer, a leakage current is formed through the inductive layer, as in Figure 1b as indicated by the arrow in the
This is a noticeable performance loss for the helical pulse generator
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[0041] Conventional helical pulse generators are wound from two ceramic membranes coated with a metal paste or constructed from two metal membranes and two ceramic membranes. An important characteristic quantity here is the number of turns n, which should preferably be in the order of 5 to 100. The winding arrangement is laminated and then sintered, thereby forming an LTCC device. The helical pulse generator thus realized with capacitor properties is then connected to the spark gap and the charging resistor. The spark gap acts as a high voltage switch, which initiates the pulse. The ceramic membrane is here ε r Dielectric materials and μ between 2 and 10000 r Mixture of inductive materials between 1.5 and 5000.
[0042] The spark gap can be at the inner terminal or the outer terminal or also in the winding of the generator. It is also possible to use SiC-based semiconductor switches, such as MESFETs from the company Cree. It is very thermally stable and suitable for temp...
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Abstract
The invention relates to a compact high-voltage pulse generator based on a spiral pulse generator, wherein the spiral pulse generator is configured as an LTCC component and wound of at least two ceramic foils and metal layers applied thereon, and wherein between the metal layers of the spiral pulse generator a multi-layer structure comprising at least one first layer having a capacitively acting ceramic with high permittivity of at least epsilon r = 10 and at least one second layer having an inductively acting ceramic with high permeability of at least mu r = 1.5 is provided, wherein the at least one inductively acting ceramic layer is insulated by the at least one capacitively acting ceramic layer. The invention also relates to a high-pressure discharge lamp having such a spiral pulse generator. The invention further relates to a method for producing ceramic spiral pulse generators.
Description
technical field [0001] The invention is based on a high-voltage pulse generator according to the preamble of claim 1 . Such generators can be used in particular for lighting high-pressure discharge lamps for general lighting or for photographic purposes or for vehicles. Furthermore, the invention relates to a high-pressure discharge lamp having such a generator. Background technique [0002] The problem of starting high-pressure discharge lamps is currently solved by integrating the starting device into the ballast. This has the disadvantage that the feeder must be designed to withstand high voltages. [0003] In the past, repeated attempts have been made to integrate the ignition unit into the lamp. An attempt was made here to integrate the ignition unit into the lamp base. A particularly efficient and high-pulse-guaranteed ignition is achieved by means of a high-voltage pulse generator of the helical pulse generator type. Earlier, such arrangements were proposed in di...
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IPC IPC(8): H01P11/00H03K3/53H05B41/04
CPCH03K3/53H05B41/042Y10T29/49009
Inventor 安德烈亚斯·克洛斯伯恩哈德·沙尔克斯特芬·沃尔特
Owner OSRAM GMBH