DGM945

Multiple Outputs
Three Control Inputs
Three Optical Encoders
RS-232 Serial Port for Control and Monitoring
OEM Customization Available

Certifications & Compliance

Modular High Voltage Supply for Image Intensifiers

Spellman’s new DGM945 high voltage power supply for Image Intensifier applications continues to set the standards for high voltage power conversion technology. The DGM945 also has inputs to allow measurement of the photocathode current and getter current. The photo-cathode measurement has two ranges : sensitive range: 0 to 50nA and a standard range: 0 to 15µA. The sensitive input is used to provide a monitor output with a sensitivity of 0.1V/nA. The getter input allows measurement of the getter current, indicating if the Image Intensifier tube is still holding a good vacuum and is without gases causing ions.

Monitoring of all output voltages is possible via local test points or over the serial interface. The unit can also storeup to eight modes of operation. The output voltages are independently adjustable in each mode either by the rotary encoders built into the unit or via the serial interface.

The DGM series can be adapted to suit specific requirements with a wide selection of multiple output voltages and power capabilities in a compact package, making it perfect for the OEM user.

Specifications

Specifications

^{(Ref. 128114-001 REV. C)}

Input Voltage:
+24Vdc ±10%
Input Current:
500mA maximum
Programmable Output Voltages:

Anode:
Output Voltage: 30kV
Output Current: 5µA continuous (50µA peak)

Electrode 1:
Output Voltage: 10V to 350V
Output Current: 0 to 10µA

Electrode 2:
Output Voltage: 200V to 2kV
Output Current: 0 to 10µA

Electrode 3:
Output Voltage: 2kV to 20kV
Output Current: 0 to 20µA

Electrode 4:
Output Voltage: 2.7kV
Output Current: 0 to 10µA
Ripple:
<0.3%
Temperature Coefficient:
<200ppmK^-1
Stability:
<0.3% over 8 hrs
Temperature:
Operating: +5°C to +55°C
Input Connector:
15 pin male sub D
Dimensions:
5.47”H x 5.67”W x 1.97”D (139mm x 144mm x 50mm)
Weight:
2.86 lb. (1.3kg)
Regulatory Approvals:
Compliant to EEC EMC Directive. Compliant to EEC Low Voltage Directive.

Typical applications

Radiology
Cardiology
Neuroradiology
Night Surveillance
Non Destructive X-Ray Inspection
Image Intensifiers

Service Solution Brochure

Spellman Repair Centers, Extended Warranty Programs, Preventative Maintenance Programs, Calibration Services and more.

Download

2026 High Voltage Reference Manual

We compiled all of our useful FAQ’s, application notes, articles, technical papers and three glossaries into a single handy reference guide.

Download

Subscribe to our high voltage newsletter

Subscribe to our high voltage newsletter, published quarterly with relevant information on high voltage power supply technology and applications.