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DC Power · Source/Sink · Battery Simulation · High Power

DC Power & Bidirectional Testing Solutions

Select a DC power architecture based on whether the DUT needs a programmable source, bidirectional source/sink behavior, battery simulation, or a higher-power DC system.

Start with voltage, current, continuous and peak power, required direction of power flow, transient behavior, and automation needs.

FIND YOUR SOLUTION

What DC power behavior do you need?

Choose the source, source/sink, battery-simulation, or high-power workflow that best matches the DUT.

Selected solution Programmable DC Power

Controlled DC source testing

Programmable DC Power Supply Testing

Create repeatable DC input conditions for components and systems using programmable voltage/current control and automated profiles.

Typical applications

  • Electronic device and module evaluation
  • DC-DC converter input simulation
  • Automated production test
  • Programmable voltage/current profiles

Recommended for this solution

Recommended KIKUSUI Products

Wide-Range DC Source
KIKUSUI PWR-01 Series Compact Wide-Range DC Power Supply

KIKUSUI PWR-01 Series Compact Wide-Range DC Power Supply

Wide-range programmable CV/CC DC source for bench, automated, and multi-channel DC power applications.

View PWR-01 Series
Rack DC Source
KIKUSUI PWX Series 1U Wide-Range Programmable DC Power Supply

KIKUSUI PWX Series 1U Wide-Range Programmable DC Power Supply

Rack-oriented wide-range DC source for automated test systems, network control, and repeatable voltage/current profiles.

View PWX Series
Selected solution Bidirectional Source / Sink

Two-way DC power flow

Bidirectional DC Source / Sink Testing

Source power to the DUT and absorb returned power when the test requires reversible energy flow or regenerative behavior.

Typical applications

  • Regenerative power-electronics testing
  • Battery-connected component validation
  • Source/sink cycling
  • Energy-returning DUTs

Recommended for this solution

Recommended KIKUSUI Products

Bidirectional DC
KIKUSUI PXB Series Bidirectional High-Capacity DC Power Supply

KIKUSUI PXB Series Bidirectional High-Capacity DC Power Supply

Bidirectional DC source and regenerative sink for battery simulation, source/sink operation, and high-power DC validation.

View PXB Series
Four-Quadrant
KIKUSUI PBZ Series Intelligent Bipolar Power Supply

KIKUSUI PBZ Series Intelligent Bipolar Power Supply

Four-quadrant bipolar source/sink platform for dynamic voltage/current conditions and reversible power flow at lower power levels.

View PBZ Series
Selected solution Battery Simulation

Battery-connected DUT validation

Battery Simulation for DC Systems

Replace a physical battery with a controlled electrical source/sink environment for repeatable testing of battery-connected devices.

Typical applications

  • Charging-system development
  • Battery-connected ECU testing
  • Power-conversion validation
  • Repeatable battery-voltage conditions

Recommended for this solution

Recommended KIKUSUI Products

Bidirectional DC
KIKUSUI PXB Series Bidirectional High-Capacity DC Power Supply

KIKUSUI PXB Series Bidirectional High-Capacity DC Power Supply

Bidirectional DC source and regenerative sink for battery simulation, source/sink operation, and high-power DC validation.

View PXB Series
Four-Quadrant
KIKUSUI PBZ Series Intelligent Bipolar Power Supply

KIKUSUI PBZ Series Intelligent Bipolar Power Supply

Four-quadrant bipolar source/sink platform for dynamic voltage/current conditions and reversible power flow at lower power levels.

View PBZ Series
Selected solution High-Power DC Systems

Higher-power DC source systems

High-Power DC Source Testing

Build higher-capacity DC source systems for power electronics, automotive, energy, and component validation where power and system integration are primary constraints.

Typical applications

  • Power-electronics R&D
  • Automotive electrical components
  • Energy-system evaluation
  • Higher-capacity automated test

Recommended for this solution

Recommended KIKUSUI Products

High-Capacity DC
KIKUSUI PAT-T Series High-Efficiency High-Capacity DC Power Supplies

KIKUSUI PAT-T Series High-Efficiency High-Capacity DC Power Supplies

High-capacity programmable DC source for higher-power component, automotive, energy, and power-electronics evaluation.

View PAT-T Series
Bidirectional DC
KIKUSUI PXB Series Bidirectional High-Capacity DC Power Supply

KIKUSUI PXB Series Bidirectional High-Capacity DC Power Supply

Bidirectional DC source and regenerative sink for battery simulation, source/sink operation, and high-power DC validation.

View PXB Series

DC Power Selection

Define the electrical operating envelope before the model.

A DC power system should be selected from the DUT operating range and required power-flow behavior rather than from a model number alone.

  1. 1. Voltage range Define minimum, nominal, and maximum DUT voltage.
  2. 2. Current & power Separate continuous requirements from short-duration peak demand.
  3. 3. Power direction Determine whether the instrument only sources power or must also absorb it.
  4. 4. Dynamics & control Define transients, sequencing, interfaces, and automation requirements.

DC Power Test Architectures

Choose the DC Source / Sink Architecture Before the Instrument

Programmable DC supplies, bidirectional supplies, bipolar sources, and higher-capacity DC systems solve different electrical requirements. Select by DUT voltage/current envelope, required power direction, dynamic behavior, and test-system integration.

Programmable DC Power

Use a programmable DC source when the DUT only needs controlled input power and does not return energy to the source.

Programmable DC SupplyDC-Powered DUT

Bidirectional Source / Sink

Choose bidirectional or four-quadrant equipment when current direction can reverse and the source must also absorb power.

Bidirectional DC SupplyBidirectional / Regenerative DUT

Battery Simulation

Battery simulation provides a repeatable electrical source/sink environment without depending on the condition of a physical battery.

Battery Simulator / Bidirectional DC SupplyBattery-Connected DUT

High-Power DC Systems

For higher-power DUTs, define operating point, duty cycle, facility power, cooling, and expansion requirements before choosing the source.

High-Capacity DC SourceHigh-Power DUT

How to Select

Match the Instrument Type to the Power-Flow Requirement

The categories below describe the role of the instrument in the test system. Product-specific ratings and operating regions must still be confirmed before selection.

Architecture Power-flow behavior Typical use
Programmable DC supplySources DC powerControlled DUT input and voltage/current profile testing
Bidirectional DC supplySources and absorbs powerBattery simulation and regenerative DUT evaluation
Bipolar / four-quadrant supplyPositive/negative voltage and current; source/sinkDynamic reversible power and bipolar load conditions
High-capacity DC supplySources higher DC powerHigher-power component and power-electronics evaluation

Frequently Asked Questions

DC Power & Bidirectional Testing FAQ

When do I need a bidirectional power supply instead of a conventional DC supply?

Use a bidirectional platform when the DUT can return energy to the source or when the test requires both sourcing and sinking, such as battery simulation or regenerative operation. A conventional DC supply is appropriate when power only needs to flow from the instrument to the DUT.

What should be defined before selecting a programmable DC power supply?

Define minimum and maximum voltage, current, continuous and peak power, load behavior, transient requirements, required interfaces, sequencing, and whether the instrument must source only or source and sink.

How is battery simulation different from simply setting a DC voltage?

Battery simulation generally requires controlled source/sink behavior and may also use programmable characteristics such as internal resistance or voltage profiles. The exact battery-simulation functions vary by instrument.

What is four-quadrant operation?

Four-quadrant operation allows positive and negative voltage/current combinations with both sourcing and absorbing power. It is useful for bipolar and dynamic loads where current direction can reverse.

How should I size a higher-power DC system?

Use the DUT operating envelope rather than maximum voltage and maximum current independently. Confirm the required operating point, continuous and peak power, duty cycle, parallel or series needs, facility input power, and cooling requirements.

Application Support

Need help defining a DC source / sink test system?

Share the DUT, voltage and current range, continuous and peak power, required power direction, transient conditions, operating duty cycle, and automation needs. Denkei Americas can help narrow the appropriate KIKUSUI DC power architecture.