MLB Mercury Lamp Power Supplies
The MLB series Mercury lamp ballasts are designed for the OEM customer. MLB power supplies provide a precise constant power output that will track the varying impedance of the mercury lamp for stable light output. Combined with our “Short Pulse” igniter the system is offered in a wide range of voltage and current combina- tions and will operate lamps from all manufacturers.
Compact size is possible due to the low-loss Zero Volt- age Switching inverter and incorporation of planar mag- netics. Power factor is greater than 0.99 (1Ø models) and conducted emissions meet stringent European reg- ulations. No additional line filter is required to meet EN 55011 emission requirements.
The MLB Lamp Ballasts set the standard for reliable lamp ignition and long term high power operation in a low cost, compact package. All 5 models offer precision regulation and the lowest ripple specifications in the in- dustry.
Advantages
Models from 650 to 5000 watts
Constant Power Output
Reliable “Short Pulse” Ignition
Power Factor Correction (1Ø models)
Low conducted emissions
Low Ripple < 0.5%
Applications
Semiconductor Processing UV Sterilization
UV Curing
Medical Applications
Model
Pout max
Iout max
V lamp
Input Voltage
Size
MLB-650
650 watts
35 A
15 to 150 V
(Depending
upon lamp model)
100 to 240 VAC
8.9” x 5.8” x 2.7”
226 x 147 x 69mm
MLB-1000
1000 watts
50A
10.6” x 8.2” x 3”
269 x 208 x 76mm
MLB-1500
1500 watts
75A
200 to 240 VAC
MLB-2500
2500 watts
150A
13” x 8.5” x 3.4”
33.2 x 21.6 x 8.6 cm
MLB-3000
3000 watts
150A
17” x 16.6” x 3.4”
431 x 422 x 108mm
MLB-5000
5000 watts
170A
200 to 440VAC
3Ø (selectable)
17.3” x 16.6” x 4.25”
439 x 422 x 108mm
Specifications
Input Voltage:
See table:
All input voltages
± 10%, 50/60Hz
Power Factor:
>.98 (1Ø Models)
Efficiency:
>80%
Interface
(See interface description page 3)
Connector:
15 Pin “D” Sub Female
Ignition/Boost
Boost Voltage:
250V
Boost Energy:
500 mj.
Ignition Voltage:
Up to 45kV (~1uSec rise time)
Igniter Polarity:
Positive or Negative (Factory Set)
Ignition Energy:
65mj.
Igniter Dimensions:
5.5” x 3.6” x 2.6”, 140 x 92 x 66mm
Performance
Line Regulation:
<0.2% of maximum output current
Current Regulation:
<0.5% of Maximum output current
Current Ripple:
<0.5% of maximum output current
Power Limit:
Limited to maximum power with power fold-back circuit
Environment
Operating Temp:
0 to 40℃
Storage:
-25 to 85℃
Humidity:
0 to 95% RH non-condensing
Cooling:
Forced air
Note: MLB-5000 can be upgraded to 7kW. Contact customer service for details. Units can also be paralleled for higher power applica- tions.
Short Pulse high energy igniters oper- ate from power supply output. Reliable automatic lamp ignition.
Also Available: The XLB-series short-arc lamp power supplies designed with constant current output to oper- ate Xenon lamps. Contact customer service or visit our website for more details.
Interface
Pin #
Pin Name
Functional Voltage Level
Description
1
Lamp On/Off (input) (Note: 1)
High = RUN = +5V to +15V Low = OFF = 0V
The Lamp On/Off function is the control func- tion which turns the lamp on and off. When the lamp is turned on, a trigger and boost sequence will ignite the lamp and deliver power as pro- grammed via Iprogram, Pin 7.
2. Current Limit
Analog Level Default =10 V
(not available on MLB-650)
The Current Limit Pin is used to limit the out- put current of the supply. The pin can be pulled lower through the use of an external resistor
to Gnd to limit the output current of the supply. The default setting is set to 105% of Ioutmax.
3
Interlock (Input)
Open = OFF
Connect to GND = RUN
The Interlock function can be connected to ex- ternal interlock switches such as door or over- temp switches.
4,9, 15
GND
Interface Return
5
Vout Monitor (out- put)
0-10V = 0-Voutmax
The output voltage of the supply can be moni- tored by Vout Monitor.
6
Iout Monitor (output)
0-10V = 0-Ioutmax
The output current of the supply can be moni- tored by Iout Monitor.
7
Pprogram (input)
0-10V = 0-Poutmax
The power supply output power is set by apply- ing a 0-10V analog signal to Iprogram(+).
8
Lamp Status
High = lamp off = 15V Low = lamp on = 0V
The status of the lamp can be monitored using this pin
13,14
+15V (output)
Auxiliary 250mA
MLB Series Block Diagram
(power factor corrected models)