Electrical Specifications
FIG.6 Ignitor Circuit (Low Voltage Input)
FIG.7 Typical High Pressure Sodium Lamp Firing
Circuit
4.7mF
BALLAST
BALLAST
4.7KW
10mF
0.47mF
400V
0.22mF
SIDAC
SIDAC
-
+
50V
SIDAC
LAMP
7.5KW
3.3KW
LAMP
+
4.7mF
100V
1.2mF
200V
-
24VAC
60Hz
120VAC
60Hz
220VAC
50Hz
16mH
H.V.
IGNITOR
120VAC
220VAC
FIG.8 Comparison of SIDAC vs SCR
FIG.9 Xenon Lamp Flashing Circuit
100
10
-
F
+
XENON LAMP
-
250V
20M
100-250
VAC
60Hz
4KV
120VAC
60Hz
100-250
VAC
60Hz
SIDAC
10 F
250V
SIDAC
+
-
0.1 F
400V
FIG.11 Basic SIDAC Circuit
FIG.10 Dynamic Holding Current Test Circuit for SIDAC
PUSH TO TEST
SWITCH TO TEST IN EACH
DIRECTIONS
S1
VBO
VBO
VBO
Ipk
DEVICE
UNDER
TEST
LOAD
VVBBOO
100-250
VAC
60Hz
IH
TRACE STOPES
IH
IH
100-250
VAC
60Hz
125-145
100 1%
SCOPE
IH
CONDUCTION
ANGLE
LOAD CURRENT
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