Schaefer’s specializes in power conversion solutions for fuel cell applications, with a vast product selection that allows for connection to virtually any stack configuration. Schaefer’s unique design and manufacturing process enables flexibility in converting voltages over a wide range from 5V to 800V.
Select our automatic current input filtering option to ensure operation of your fuel cell without risk of shutdown due to an overcurrent condition.
Rugged construction options allow for use in even the most demanding conditions in vehicles, ships, trains, factories, and military applications.
- Buck, boost, or isolation designs
- DC/DC or DC/AC solutions
- Custom solutions, typically with no NRE
- Ultra-wide input ranges to handle fuel cell extremes
- High efficiency for lower cost of ownership
- High energy/power density results in smaller overall package size
- Built-in current limiting on output (optional on input) to eliminate fuel cell shutdown
- Rugged construction for use in the most harsh and demanding environments
To ensure a high reliability and quality of our power supplies, they have to pass through internal testing for high industrial requirements. Furthermore, they can be tested against increased shock and vibration resistance, as well as extreme environmental conditions. All components are selected according to criteria of durability, availability and performance. According to customer requirements national and international standards can be tested in cooperation with external laboratories.
- EN 50178
- EN 60664-1
- EN 60950-1
- EN 61000-6-2
- EN 61000-6-4
- EN 55011 / EN 55022 class A
- EN 61140
By default, all devices are designed with electronic current limiting, overvoltage protection and continuous short circuit protection. Optionally, the modules can be expanded as follows:
- Inrush current limiting
- Reverse polarity protection for DC input
- Decoupling diode for redundant / parallel operation
- Active current sharing for parallel operation
- Hot-pluggable solutions
- Monitoring of input and output voltage
- Output programmable
- Power factor correction (PFC) for single phase input
- Temperature compensated charging voltage
- Automatic / manual selection of charging characteristics
- Remote ON / OFF (inhibit)
By default, all modules will be offered as a 19″ module or 19″ sub-rack according to IP20. Optionally, the modules can be expanded as follows:
- Wall mount, chassis mount, DIN-rail mount, 19″ rack or customized design
- Fan or liquid cooled
- Mating connectors, wiring and monitoring instruments in accordance to the customers’ requirements
- Digital or analog V- and A-meters
- Monitoring & programming via potentiometer, analog signals or RS232 / IEEE488 interfaces
- Designed for a high level of shock and vibration
- Tropical protection finish on all circuit boards and components to ensure an increased protection category to protect the module from extreme climatic conditions
- Robust enclosure that can withstand wind, sun, salt water, dirt or dust.
- Hermetically sealed enclosure for high protection category
- Product Features
-
- Buck, boost, or isolation designs
- DC/DC or DC/AC solutions
- Custom solutions, typically with no NRE
- Ultra-wide input ranges to handle fuel cell extremes
- High efficiency for lower cost of ownership
- High energy/power density results in smaller overall package size
- Built-in current limiting on output (optional on input) to eliminate fuel cell shutdown
- Rugged construction for use in the most harsh and demanding environments
- Engineering Standards
-
To ensure a high reliability and quality of our power supplies, they have to pass through internal testing for high industrial requirements. Furthermore, they can be tested against increased shock and vibration resistance, as well as extreme environmental conditions. All components are selected according to criteria of durability, availability and performance. According to customer requirements national and international standards can be tested in cooperation with external laboratories.
- EN 50178
- EN 60664-1
- EN 60950-1
- EN 61000-6-2
- EN 61000-6-4
- EN 55011 / EN 55022 class A
- EN 61140
- Electrical Features
-
By default, all devices are designed with electronic current limiting, overvoltage protection and continuous short circuit protection. Optionally, the modules can be expanded as follows:
- Inrush current limiting
- Reverse polarity protection for DC input
- Decoupling diode for redundant / parallel operation
- Active current sharing for parallel operation
- Hot-pluggable solutions
- Monitoring of input and output voltage
- Output programmable
- Power factor correction (PFC) for single phase input
- Temperature compensated charging voltage
- Automatic / manual selection of charging characteristics
- Remote ON / OFF (inhibit)
- Mechanical Features
-
By default, all modules will be offered as a 19″ module or 19″ sub-rack according to IP20. Optionally, the modules can be expanded as follows:
- Wall mount, chassis mount, DIN-rail mount, 19″ rack or customized design
- Fan or liquid cooled
- Mating connectors, wiring and monitoring instruments in accordance to the customers’ requirements
- Digital or analog V- and A-meters
- Monitoring & programming via potentiometer, analog signals or RS232 / IEEE488 interfaces
- Designed for a high level of shock and vibration
- Tropical protection finish on all circuit boards and components to ensure an increased protection category to protect the module from extreme climatic conditions
- Robust enclosure that can withstand wind, sun, salt water, dirt or dust.
- Hermetically sealed enclosure for high protection category
Schaefer Capabilities for Fuel Cell Applications
Schaefer’s designs can be configured as an option to monitor the input current and appropriately set the output current limit to ensure that the converter/inverter will not shut down the fuel cell.