Products > Electrical Components > DC Converter

SP DC Converter 4.0

Bidirectional voltage regulation

Broad voltage level range

Up to 800 V DC

Enabling inventors of the lower power range to benefit from latest technologies

The bidirectional DC-to-DC converter allows power flow in both forward and reverse directions. This enables the usage of just one converter in contrast to the previous two.

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          +49 (0) 89 9256 6192

Nominal power

7 kW

Nominal voltage

800 V DC




IP 68

Key Facts

  • Multiphase control enables low current ripple

  • Supercap charge controller

  • Battery charge controller

  • PV integration

  • DC grid stabilization

  • Optional fluid cooling

Recommended for

Wave energy converter, small wind turbines, hydropower, peak-load management, diesel gensets, light vehicles (e.g. Tuk Tuk)


Related Files

For more detailed information and technical specifications please download the following documents:

Compatible with


SP MotorDrive 3.4

SP AC Inverter 4.0

Future development


SP Supercap 4.0


SP LFP Storage 4.0

Technological Highlights

Bidirectional voltage regulation

The bidirectional DC Converter requires one unit only to charge and discharge batteries or supercaps. 

Multiphase control enables low current ripple

Low current ripple can be reduced with higher frequencies. By connecting the units in parallel, the single power flow is reduced to a third. Further uniformity can be achieved through smart settings of the three power flows by hindering overlaps. 

IP 68 Rating

Developed to achieve full power also in harsh condition, we designed all components IP 68 proof. Wet and dusty environments as well as temporary submersion won't harm our units.

Modular compatibility with all SINN Power components

Particular attention was payed to enable a seamless connection of all SINN Power components and allow to build different configurations depending on the purpose. In this way, components can be physically connected via cable, simply per plug or in a connection box. With every additional electrical component running on the same DC bus, the physical order can be adapted to the needs. For instance, multiple LFP storage units can be included to increase capacity. Furthermore, storage units can be placed in a maintenance-friendly spot for the setup.

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