參數(shù)資料
型號: B88069X4770C103
英文描述: GAS DISCHARGE TUBE 150V
中文描述: 氣體放電管150伏
文件頁數(shù): 49/54頁
文件大?。?/td> 6102K
代理商: B88069X4770C103
53
EPCOS AG
Schaltfunkenstrecken
Switching Spark Gaps
When the ignition voltage of the
spark gap is reached, the energy
stored in the capacitor is discharged
via the primary side of the trans-
former and generates the required
high-voltage pulses on the secondary
side. Their amplitude is determined
by the ignition voltage of the spark
gap and by the winding ratio of the
transformer. The repetition frequency
can be set by selecting a suitable
charging resistor.
Construction
The construction of gas-filled switch-
ing spark gaps is similar to that of the
surge arrester with two electrodes
shown in this brochure. The electrical
properties required for switching ap-
plications and the long switching life
are set by matching design features
such as the spacing and shape of the
electrodes, the electrode activating
compound, the type and pressure of
the filling gas as well as the number,
type and position of the ignition aids.
The rugged hard-solder connection
between the electrodes and the
ceramic insulator guarantee high
reliability within a wide temperature
range.
Application
Type series CAS02X
Igniters for gas cookers and central
heating systems
Principle: The switching spark gap
generates the current pulse for the
ignition transformer on the primary
side. This in turn generates the high
voltage required to ignite the gas
mixture, typically of 12 kV, on the
secondary side via its winding ratio.
Type series SSG
Igniters for the cold and hot ignition
of high and ultra-high pressure gas-
discharge lamps for video and data
projectors, general illumination (such
as stadium and studio illumination,
illumination of goods in stores), and
special applications (endoscopy
illumination)
Principle: The high-voltage pulses
generated in the ignition circuit are
superposed onto the lamp operating
voltage supplied by the ballast.
Thanks to the low losses incurred
in switching with spark gaps, the
ignition circuits can be dimensioned
so that a few pulses – in the extreme
case one pulse – suffice to ignite the
high-pressure gas-discharge lamp.
Type series FS
Igniters are found in xenon discharge
lamps for automotive headlamps as
well as in auxiliary lamps used in the
construction and mining industries.
Principle: As described for the SSG.
RAB0225-M
Vorschaltgert
Electronic ballast
Transformator
Transformer
HID-Lampe
HID lamp
Schaltfunkenstrecke
Switching spark gap
Generierung
Hochspannungsimpuls
Superimposed pulse igniter
Typische Daten / Characteristical Data
Schaltzeit
Switching time
<50 ns
Schaltstromscheitelwert (typabhngig)
Switching current, peak value (depending on the type)
<1000 A
Energie pro Entladung (typabhngig)
Energy per discharge (depending on the type)
<200 mJ
Lebensdauer (Schaltungen) 1)
Service life (switchings) 1)
105 …106
Bogenbrennspannung
Arc voltage
10…200 V
Bild / Fig. 3
1) Die Anzahl der Schaltungen und Durch-
bruchspannung whrend der Lebens-
dauer werden mageblich durch die
Zündkreisparameter, d.h. durch die
Kapazitt des Zündkondensators sowie
die Primrinduktivitt des Hochspan-
nungstransformators bestimmt. Die
Auslegung dieser Schaltungen variiert
von Anwender zu Anwender. Daher
haben wir diese Werte in der Tabelle
nicht aufgenommen.
Datenbltter mit Werten für Schalt-
zahlen und Durchbruchspannungen,
stehen auf Anfrage zur Verfügung.
1) The number of switching operations and
the breakdown voltage occurring during
the component’s service life are signifi-
cantly determined by the ignition circuit
parameters, i.e. by the capacitance of
the ignition capacitor as well as the
primary inductance of the high-voltage
transformer. Because the layout of the
circuits depends on the user, these values
have not been included in the table.
Data sheets with values for switching
operations and breakdown voltages
obtained from standardized test circuits
are available upon request.
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