The Sorensen DHP 40-75 is a highly reliable, 3 kW programmable DC power supply belonging to the Digital High Power (DHP) Series from AMETEK Programmable Power. Featuring a unique modular design in a 3U rackmount profile, it delivers up to 40 V and 75 A. It is equipped with comprehensive digital displays, robust remote analog/digital control options, power-off memory (LAST SET), and extensive protective mechanisms, making it ideal for high-power industrial, test, and laboratory applications.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | GPIB (IEEE-488) and RS-232 (standard); Analog remote control (optional) |
| Display | Digital displays showing voltage, current, output power, AC input voltage, air inlet temperature, and diagnostics |
Physical
| Parameter | Value |
|---|---|
| Power Supply | 190-250 VAC, 3-phase, 47-63 Hz (optional 380/415/460/480 VAC available) |
| Operating Temperature | 0 to 50 °C |
| Dimensions (W×H×D) | 483 mm × 133 mm × 559 mm |
| Weight | 15 kg |
Output Ratings
| Parameter | Value |
|---|---|
| Number of Channels | 1 |
| Rated Output Voltage | 0 to 40 V |
| Rated Output Current | 0 to 75 A |
| Rated Output Power | 3000 W |
Load and Line Regulation
| Parameter | Value |
|---|---|
| Voltage Line Regulation | 0.1% of max rated voltage |
| Voltage Load Regulation | 0.1% of max rated voltage |
| Current Line Regulation | 0.1% of max rated current |
| Current Load Regulation | 0.1% of max rated current |
User Controls and Interface
| Parameter | Value |
|---|---|
| Power-Off Memory | Restores last settings upon input power enable |
| External Shutdown | Dedicated input to inhibit output remotely |
| Front Panel Controls | Up/down arrow keys for voltage, current, and step-change adjustments |
| Display Readouts | Output power, voltage, and current; set points/limits; AC input voltage; air inlet temperature; sequence settings; calibration and remote setup; fault diagnostic summary |
Protection and Safety
| Parameter | Value |
|---|---|
| Protection Features | Overcurrent, overvoltage, over-temperature, surge limit, soft start, brown out, and short-circuit protection |
| Front Panel Lockout | Disables manual front panel controls during remote operations |
AC Input Specifications
| Parameter | Value |
|---|---|
| AC Input Voltage Range | 190 to 250 VAC (standard) |
| AC Input Phase Configuration | 3-phase, 3-wire plus ground |
| AC Input Frequency Range | 47 to 63 Hz |
Physical Specifications
| Parameter | Value |
|---|---|
| Form Factor | 3U Rackmount |
| Dimensions (W x H x D) | 19 in x 5.25 in x 22 in (483 mm x 133 mm x 559 mm) |
Control & Programming
| Parameter | Value |
|---|---|
| Analog Programming Input Options | 0-5 V, 0-10 V, 0-5 kΩ, or 0-10 kΩ (user-selectable) |
Output Specifications
| Parameter | Value |
|---|---|
| Remote Sense Compensation | Up to 5 V total line drop (2.5 V per line) |
| Voltage Ripple (RMS) | 20 mV |
| Voltage Ripple (Peak-to-Peak) | 100 mV |
| Current Ripple (RMS) | 150 mA |
Performance
| Parameter | Value |
|---|---|
| Transient Recovery Time | 1 ms typical (to within 1% of Vmax for a 50% to 100% load step) |
| Voltage Temperature Coefficient | 0.02% of maximum voltage per °C |
| Current Temperature Coefficient | 0.03% of maximum current per °C |
Environmental
| Parameter | Value |
|---|---|
| Storage Temperature | -40 to +85 °C |
| Operating Humidity | 0 to 90% RH (non-condensing) |
Safety & Isolation
| Parameter | Value |
|---|---|
| Output to Chassis Isolation | 700 VDC |
Programming & Readback
| Parameter | Value |
|---|---|
| Analog Programming Accuracy (Voltage) | ±0.5% of maximum rated output voltage |
| Analog Programming Accuracy (Current) | ±1.0% of maximum rated output current |
Physical & General
| Parameter | Value |
|---|---|
| Cooling | Forced air cooling with internal fan |
Technology
Switch-mode (PWM) DC Power Supply
Applications
Programmable DC power source for automated test equipment (ATE), industrial burn-in, and high-power laboratory testing