The Sorensen (Ametek) DHP 100-20 is a high-power programmable DC power supply from the digital DHP series. Delivering up to 100 V and 20 A of output, it offers 2 kW of clean, configurable power with a unique modular design. It features extensive front-panel digital diagnostics, comprehensive protection circuitry, standard RS-232 communication, and optional GPIB capability, making it ideal for robust automated test equipment (ATE) and laboratory environments.

Specifications

General

ParameterValue
InterfacesRS-232 (standard), GPIB (IEEE-488) (optional)
DisplayDigital display showing rating, output power, voltage, current, set points, limits, input voltage, inlet temperature, and diagnostics

Physical

ParameterValue
Operating Temperature0 to 50 °C
Dimensions (W×H×D)483 x 133 / 222 / 311 (power dependent) x 610 mm
Weight34 / 64 / 95 kg (power dependent)

Output Specifications

ParameterValue
Rated Output Voltage Range0 - 100 V
Rated Output Current Range0 - 20 A
Maximum Output Power2000 W

Control and Interface

ParameterValue
External Shutdown InputInhibits the output via external command
Front Panel ControlsUp/down arrows for controlling voltages, current, and step changes
Front Panel LockoutDisables most front panel controls during remote operation
Standard Digital InterfaceRS-232
Optional Digital InterfaceGPIB (IEEE-488)

Protection and Diagnostics

ParameterValue
Overcurrent Protection (OCP)Yes
Overvoltage Protection (OVP)Yes
Overtemperature Protection (OTP)Yes
Soft StartYes
Brown Out ProtectionYes
Short Circuit ProtectionYes
Diagnostic Fault StatusDiagnostics fault status summary on front panel

Monitoring and Diagnostics

ParameterValue
Display Parameters - Power Supply RatingYes
Display Parameters - Output PowerYes
Display Parameters - Output VoltageYes
Display Parameters - Output CurrentYes
Display Parameters - Set Points & LimitsDisplays all power, voltage, and current set points and limits
Display Parameters - AC Input VoltageDisplays present and highest AC input voltage
Display Parameters - Air Inlet TemperatureDisplays present and highest air inlet temperature
Display Parameters - Sequence SettingsDisplays power and auto-step sequence settings
Display Parameters - Calibration SetupYes
Display Parameters - Remote SetupYes

Performance

ParameterValue
Voltage Line Regulation0.1% of max rating
Voltage Load Regulation0.1% of max rating
Current Line Regulation0.1% of max rating
Current Load Regulation0.15% of max rating
Voltage Stability0.05% of max rating over 8 hours after 30-minute warm-up
Voltage Temperature Coefficient0.02% of max rating per °C
Current Temperature Coefficient0.03% of max rating per °C

Environmental

ParameterValue
Storage Temperature Range-25 °C to +85 °C

Technology

Switching programmable DC power supply

Applications

Test and measurement, ATE systems, laboratory power, and industrial automation

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