DCS40-25

The Sorensen DCS40-25 is a 1000 W programmable DC power supply designed to provide highly stable, continuously variable output voltage (0-40 V) and current (0-25 A) for a wide range of development, system, and burn-in applications. It features high-frequency switching technology for a high power density, simultaneous digital display of voltage and current, and support for automatic constant voltage (CV) and constant current (CC) crossover modes.

DC Power Supply Power Electronics Programmable Power Supply

Specifications

General

Parameter	Value
Interfaces	Optional IEEE-488 (GPIB)
Display	Simultaneous digital display of both voltage and current

Physical

Parameter	Value
Power Supply	115/230 Vac selectable, 47-63 Hz, single phase
Operating Temperature	0 to 50°C
Dimensions (W×H×D)	482.6 x 44.4 x 444.5 mm (19 x 1.75 x 17.5 in)
Weight	8.6 kg

Output Specifications

Parameter	Value
Rated Output Voltage Range	0 - 40 V
Rated Output Current Range	0 - 25 A
Maximum Output Power	1000 W
Output Ripple and Noise (RMS)	10 mVrms
Operating Modes	Constant Voltage (CV) and Constant Current (CC)
Mode Crossover	Automatic crossover
Maximum Remote Sense Compensation	Up to 1 V per lead
Output Ripple and Noise (p-p)	50 mV
Output Ripple Current (RMS)	25 mA

Protection and Diagnostics

Parameter	Value
Over Voltage Protection (OVP) Range	2 - 44 V

AC Input Specifications

Parameter	Value
Input Voltage Range	115 / 230 Vac selectable
Input Frequency Range	47 - 63 Hz
Input Phases	Single phase

Control and Interface

Parameter	Value
Voltage Control Type	Ten-turn potentiometer
Current Control Type	Ten-turn potentiometer
Remote Shutdown	External TTL, AC, or DC shutdown
Remote Programming	Voltage, current limit, and OVP programming with selectable programming constants
Remote Monitoring Status Signals	OVP status, local/remote programming status, thermal shutdown, and output voltage and current indicators
Series/Parallel Configuration Capacity	Multiple units can be connected in parallel or series

Physical Characteristics

Parameter	Value
Form Factor	1U Rackmount

Regulation

Parameter	Value
Line Regulation (Voltage)	0.1% of maximum output voltage (40 mV)
Line Regulation (Current)	0.1% of maximum output current (25 mA)
Load Regulation (Voltage)	0.1% of maximum output voltage (40 mV)
Load Regulation (Current)	0.1% of maximum output current (25 mA)

Performance

Parameter	Value
Temperature Coefficient (Voltage)	0.02% of maximum output voltage per °C (8 mV/°C)
Temperature Coefficient (Current)	0.03% of maximum output current per °C (7.5 mA/°C)
Transient Response Time	1 ms typical (for 50% load step recovery to within 100 mV of steady-state)

Power Input

Parameter	Value
AC Input Current	15 A RMS max @ 115 VAC, 8 A RMS max @ 230 VAC

Programming & Control

Parameter	Value
Analog Programming Input Ranges	0-5 VDC, 0-10 VDC, or 0-5 kΩ / 0-10 kΩ resistive control
Voltage Programming Accuracy	±0.5% of maximum rated voltage (analog)
Current Programming Accuracy	±0.5% of maximum rated current (analog)

Environmental

Parameter	Value
Storage Temperature Range	-55 to +85°C
Operating Humidity Range	0% to 90% RH (non-condensing)
Cooling	Forced-air cooling by internal fan, exhaust at rear

Input Specifications

Parameter	Value
Efficiency	82% (typical)
Power Factor	0.70 (typical)

Safety & Isolation

Parameter	Value
Output-to-Ground Isolation	±250 VDC

Regulatory

Parameter	Value
Certifications & Compliance	CE, UL3111-1, CSA C22.2 No. 1010.1, EN61010-1

Technology

High-frequency switching

Applications

Development, system integration, and component burn-in

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