MPS20W DC-DC 20W High Voltage Power Supplies

MPS20W Series

Differential Input for Voltage Program
Voltage and Current Controls
Voltage and Current Monitors
High Stability
Ultra Low Ripple and Noise
High Voltage Enable Control

*Note: All specifications are subject to change without notice. Please consult the English PDF version of this datasheet for the most up-to-date revision.

CE, ROHS, UL Marking

Data Sheet

Mass Spectrometry Brochure

Relevant FAQs

Spellman MPS20W DC-DC 20W High Voltage Power Supplies

Spellman’s new MPS20W series are a family of high voltage 20 Watt modules that provide output voltages ranging from 1kV to 20kV.

The MPS20W series are high performance products designed with Spellman’s hybrid topology of linear and switch mode power conversion techniques delivering lower noise with higher efficiency. The MPS20W series produces excellent ripple and stability performance specifications from a compact footprint. Additionally the MPS20W series features, as standard, a differential amplifier input for the voltage programming signal to improve immunity from external system noise and addressing any offset issues. Alternatively the output voltage may be pre-set by an internal potentiometer. A fully featured remote user interface is provided via 15-pin D-type connector as standard. The output voltage is arc and short circuit protected and the power input has a current limiter fitted.

Spellman’s proprietary HV technology coupled with SMT circuitry results in an ultra compact and lightweight module that is available as either a positive or negative supply that is ideal for OEM applications.

Typical applications:

Photomultiplier Tubes
Microchannel Plate Detectors
Scintillators
Mass Spectrometry
Electron and Ion Beams
Electrostatic Lenses
Nuclear Instruments
Electrostatic Printing

Specifications

^{(Ref. 128064-001 REV. G)}

Input Voltage:

+24 Vdc, ±2Vdc

Input Current:

≤ 1.5 amps

Output Voltage:

7 models available from 1kV to 10kV

Output Polarity:

Positive or negative, specify at time of order

Power:

≤ 20 watts

Voltage Regulation:

Line: ≤ 0.001% of rated output voltage over specified input voltage

Load: ≤ 0.001% of rated output voltage for full load change

Current Regulation (Vcc Option):

Line: ≤ 0.01% for 1V input voltage change under any load conditions

Load: ≤ 0.001% for 0 to full load

Ripple:

See “model selection” table

Stability:

≤ 0.01% per hour, 0.02% per 8 hours after 1.0 hour warm up period.

Temperature Coefficient:

≤ 25ppm per degree C

Environmental:

Temperature Range:

Operating: 0°C to 50°C

Storage: -35°C to 85°C

Humidity:

20% to 85% RH, non-condensing

Cooling:

Convection cooled

Dimensions:

1.31. H X 3.74. W X 5.91. D (33.5mm x 95mm x 150mm)

Weight:

1-2kV: 15.17 oz. (430g)

3-10kV: 25.76 oz. (730g)

15-20kV: 35.30 oz. (1000g)

Interface Connector:

15 pin male D connector

Output Connector:

A captive 39.4. (1 meter) long shielded HV cable is provided

Regulatory Approvals:

Compliant to EEC EMC Directive. Compliant to EEC Low Voltage Directive.

MPS20W SELECTION TABLE

Model	Output Voltage	Output Current	Ripple (Vpp)
MPS1*20/24	0-1kV	20mA	<25mV
MPS2*20/24	0-2kV	10 mA	<50mV
MPS3*20/24	0-3kV	6.67mA	<75mV
MPS5*20/24	0-5kV	4mA	<125mV
MPS10*20/24	0-10kV	2mA	<125mV
MPS15*20/24	0-15kV	1.33mA	<375mV
MPS20*20/24	0-20kV	1mA	<500mV

*Specify “P” for positive polarity or “N” for negative polarity. Custom units available.

MPS20W ANALOG INTERFACE— 15 PIN D CONNECTOR

Pin	Signal	Signal Parameters
1	Power/Signal Ground	Ground
2	+24Vdc Input	+24Vdc @ 1.5 amp maximum
3	Voltage Monitor Output	0 to 10Vdc=0 to 100% Rated Output, Zout =2.2kΩ
4	Local Programming Potentiometer Wiper Output	Potentiometer connected to +10Vdc and Ground, 0 to 10Vdc adjustable wiper output provided
5	Voltage Program Input	0 to 10Vdc=0 to 100% Rated Output, Zin=10MΩ
6	Voltage Program Differential Amplifier Output	0 to 10Vdc=0 to 100% Rated Output, Zout =2.2kΩ
7	Voltage Program Differential Amplifier Input—Positive	0 to 10Vdc differential between pin 7 and pin 9 = 0 to 100% of rated output, diode clamped to ground, Zin =38kΩ
8	Current Monitor Output	0 to 10Vdc = 0 to 100% Rated Output, Zout =2.2kΩ
9	Voltage Program Differential Amplifier Input—Negative	0 to 10Vdc differential between pin 7 and pin 9 = 0 to 100% of Rated Output, diode clamped to ground, Zin =38kΩ
10	No Connection	No Connection
11	Current Program Input	Standard: Internally connected to provide 110% fixed current limit VCC Option: 0 to 10Vdc=0 to 100% Rated Output, Zin=1MΩ
12	Enable Input	Low = Enable, TTL, CMOS, Open Collector Compliant
13	Internal Connection	No Connection
14	No Connection	No Connection
15	Analog Signal Ground	Analog Signal Ground