Power DC/DC Converter DCDC-S
Product detailed description
Key Features
- Scalability — DCDC-S Product Family delivers scale and performance exactly for your needs including dual output variants.
- Switchable Output Control — Constant voltage and constant current modes, including current limitations.
- Unit Parallelization — Each unit can operate independently or in parallel, enabling distributed power control in complex systems.
- Digitally Controlled — Real-time insights and remote configurability for your application.
Each DCDC-S unit is a smart power building block. Modules can be connected in parallel to deliver the total power your application requires — whether you're running a compact test setup or a high-power industrial system.
Type Variants
| Model | No. of modules | Min. input | Max. input | Max. input current |
Min. output | Max. output | Max. output current |
| DCDC S4C-90/104 | 4 | 15 V | 90 V | 104 A | 0 V | 90 V | 104 A |
| DCDC S3C-90/78 | 3 | 78 A | 78 A | ||||
| DCDC S2C-90/52 | 2 | 52 A | 52 A | ||||
| DCDC S1C-90/26 | 1 | 26 A | 26 A | ||||
| DCDC S4C-60/160 | 4 | 15 V | 60 V | 160 A | 0 V | 60 V | 160 A |
| DCDC S3C-60/120 | 3 | 120 A | 120 A | ||||
| DCDC S2C-60/80 | 2 | 80 A | 80 A | ||||
| DCDC S1C-60/40 | 1 | 40 A | 40 A | ||||
| Dual-output variants | |||||||
| DCDC S4C-90/78+26 | 3+1 | 15 V | 90 V | 104 A | 0 V | 90 V | 78 + 26 A |
| DCDC S3C-90/52+26 | 2+1 | 78 A | 52 + 26 A | ||||
| DCDC S2C-90/26+26 | 1+1 | 52 A | 26 + 26 A | ||||
| DCDC S4C-60/120+40 | 3+1 | 15 V | 60 V | 160 A | 0 V | 60 V | 120 + 40 A |
| DCDC S3C-60/80+40 | 2+1 | 120 A | 80 + 40 A | ||||
| DCDC S2C-60/40+40 | 1+1 | 80 A | 40 + 40 A | ||||
Smarter Power Conversion
Need constant voltage? Prefer current control? With DCDC-S, you can do both — and switch between them dynamically.
And yes, it’s all digitally controllable and monitorable, giving you real-time insights and remote configurability for complex or distributed power architectures. That includes setups with system batteries, peak-shaving logic, or multiple hydrogen sources running in parallel with individual current contributions.
For the last six variants, the modules offer flexible power distribution. They can operate as a combined single power source or split their output between two separate power supply branches, allowing for different power ratios tailored to your specific needs. A typical use case for the dual-output configuration is to provide Balance-of-Plant (BoP) power alongside the main stack output — powering auxiliary systems like pumps, valves, and controllers.
Adaptable Performance
The DCDC-S platform supports both constant voltage and constant current operation, including current limitation. This makes it ideal for systems with a battery buffer, where the converter can intelligently switch modes depending on the battery’s state of charge and real-time power demand.
The current control mode also enables smart parallelization of multiple DC/DC units — each unit can be activated independently and contribute a different current or power level. That gives you precise, distributed control across complex architectures.
Technical Parameters
| Digital control | CAN, RS-485, USB |
| Cooling | Air |
| Design | Box (dimensions: 428 × 136 × 270 mm) |
| Input voltage | 15 .. 90 V |
| Output voltage | 0 .. 90 V |
| Topology | buck-boost (step-up & step-down) |
| Isolation | non-isolated |
| Modularity | 1 .. 4 modules in parallel |
| Power | 1 .. 2.3 kW per module |
| Efficiency | up to 97 % |
| Output control |
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| Controller options |
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Use Cases
From fuel-cell stacks to BoP and hybrid storage — precision power conversion across your hydrogen system.
- Stack output regulation — Stabilizes variable output for downstream use
- Balance of Plant (BoP) power supply — Powers pumps, valves, sensors and controls
- Battery Peak-Shaving — Intelligent mode switching based on battery charge and real-time load — constant voltage or current as needed.
- Multi-stack hydrogen power sources — Combines multiple stacks with individual control
- Electrolyzer supplies with precise current control — Delivers accurate, limited current for efficiency
- Pre-conditioning for inverters with incompatible inputs — Matches stack output to inverter input range
Example setup
H2FC stack (35–72 V) → DCDC-S (output 48 V) → inverter (48 VDC → 230 VAC)
Customization
We offer DCDC-S models with custom-defined parameters, tailored mechanical and thermal setups, or as part of complete development services for custom projects and series production.
Need something specific? Just tell us your key requirements — input/output voltage and current ranges, preferred cooling method, control interface needs, and any other application-specific constraints — we offer customized solutions!
Tailored to your setup
We don’t do one-size-fits-all. We offer:
- Stand-alone converters with fixed output settings
- Digital controlled modules
- Open-frame variants for seamless system integration
- Fully customized solutions for OEM or serial production
- Flexible mechanical and cooling options
- Complete development services for custom needs
Resources
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