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Application
The buffer module can be connected directly in parallel to the regulated DC circuit of a DC-power supply or a DC-consumer, in order to buffer load currents during line voltage faults, peak loads or switching operations.
Through this, interferences at controls, caused by short blackouts, can be avoided.
Functional principle
The buffer module stores energy as long as the DC power supply
voltage is available. In case of a power failure the buffer module delivers the energy controlled to the consumer. Because most blackouts are shorter than 0.2 seconds and can be bypassed with the buffer module and the reliability of the complete system is considerably improved.
Extending the retention time
After a power down or a line voltage failure the load current is taken over by the buffer module for a certain time. Thus for example operations can be finalized controlled and process data can be stored, to allow controlled restarts.
Product information
DC buffer module for 12, 24 or 48 VDC systems
Extra low safety potential
Overload- and open circuit protected
Short circuit proof
Parallel connection possible
No accumulator - maintenance-free
Operating status shown by LED
Relay for remote monitoring the supply voltage
Suitable for the tropics - epoxy resin casted
Safety acc. to VDE, EN, UL, CSA
Operating temperature range: -30°C / +70°C
Mounting: on rails acc. to DIN 46277 or wall mounting with screws
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MTM Power GmbH, the specialist for high quality power supplies, offers in its program DC/DC converters for automotive applications. The series WRC is available with 30, 60, 100 and 150 W. The converters are designed for mobile use acc. to EN 50 155, LES-DB-BN 411 002 and IEC 571-1 (railway, automotive). The battery voltages 24, 36, 72, 90 and 110 V +40/-45 % are covered with three input voltage ranges. All four power ranges have a high efficiency and are available with single or dual output voltages. The converters have an extreme high reliability (MTBF >1.000.000 h, TA = +40 °C) and an isolation of at least 2,1 kVDC (prim.-sec.). The temperature range is -40...+85 °C acc. to EN 50 155. Other important features are resistance against vibrations and reverse polarity protection at the input. The power supplies can be used in 19" racks or for wall mounting with H15 connector. The series WRC needs no ground load, is short circuit protected and has extensive monitoring and protection systems.
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Absopulse Electronics designs and manufactures rugged, high performance DC-DC converters for almost any input/output and mechanical configuration requirement, with output power ranging from a few watts to over 30kW. These converters are suitable for a wide range of environments, including railway, industrial, military, marine, airborne, utility and telecommunications.
Absopulse's railway power supplies are designed to meet rail-specific standards including EN50155 and EN50121-3-2. They are typically encapsulated in a in thermally conductive MIL-spec. silicon rubber compound to ensure immunity to shock, vibration, moisture, salt and airborne contaminants. These encapsulated units operate in ambient temperatures ranging from -40°C to +85°C and humidity up to 95%, and are conduction/convection cooled.
Our rugged, dc-dc converters offer:
- DC inputs: 12Vdc, 24Vdc, 36Vdc, 48Vdc, 72Vdc, 96Vdc, 110Vdc and custom
- High input voltages up to 800Vdc
- DC outputs: 3.3Vdc, 5Vdc, 12Vdc, 15Vdc, 24Vdc, 36Vdc, 48Vdc, 125Vdc 250Vdc and custom
- High output voltages to 800Vdc available
- EMI filtering to meet any standard
- Conformal coating or encapsulation (potting) to ensure immunity to shock, vibration, humidity, moisture, dust and insects available
- Operating temperature ranges including -40°C to +85°C available
- Full electronic protection
- Alarms (form C contacts) option available on most designs
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24Vdc to 12Vdc Converters
These products offer a convenient way to operate mass produced 12Vdc equipment, such as cell phones, in car entertainment equipment, professional communication equipment, telematics equipment, refrigerators, televisions, etc. from the 24Vdc mobile electrical systems found on diesel engined vehicles and vessels and the 28Vdc systems found on aircraft.
These cool running products use switch mode technology and are assembled using surface mount technology.
All the products are CE marked, e marked and meet the requirements of
FCC Class B.
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Typical applications include: installations of mobile and cellular radio communications equipment, telemetry systems, refrigeration, televisions etc on trucks, buses, forestry and off road vehicles as well as boats and yachts and a variety of industrial applications.
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Typical applications include: installations of mobile and cellular radio communications equipment, telemetry systems, refrigeration, televisions etc on trucks, buses, forestry and off road vehicles as well as boats and yachts and a variety of industrial applications.
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Chassis mount DC/DC converters, cooled by fan or air circulation, compact design, high power:
- 25W to 350W
- Input voltages from 9,2V to 144V
- Output voltages 5V, 12V, 24V, 48V
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MTM Power GmbH, the specialist for individual power supplies, offers DC/DC converters for worldwide industrial application with an output power from 1,5 to 200 W. They are available with input voltage ranges of 2:1 and 4:1 and output voltages between 1,8 V and 48 V as single, dual and triple output and also as costumized versions. The converters are built in a plastic or metal case. The different cases are DIL 24 or SMD up to 10 W, 2" x 1" cases up to 20 W, 2" x 2" cases up to 30 W, quarter brick with 75 W, half brick with 50, 75, 100 and 150 W and full brick cases with 200 W. Further features are high efficiency of up to 94 %, low ripple&noise, isolation up to 3 kVDC as well as various options like external output voltage trimming and remote control.
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Compact DC/DC converters for DIN rail and wall mounting
At 100 Watt and 500 Watt the latest DC/DC converters from Zentro Elektrik extend the existing comprehensive range of converters.
The compact DC/DC converters are designed for applications in automation engineering, power supply and power station engineering, in traffic systems and railway in particular, and in mechanical engineering. They are air-cooled and have many control, operating and display elements.
Connections are made by means of easy-to-use screw terminals.
The converters are distinguished by a high degree of efficiency of > 80% and comprehensive protective and control facilities such as protection from overload and overvoltage, thermal protection and decoupling diodes. Options such as a varistor at the output, to prove additional overvoltage protection or a signal relay, further distinguish the
GWH 100 / 500 series of converters. Up to 3 units with active current sharing can be switched in parallel to extend power.
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Customer specific power supplies and power conversion systems
Our professional development engineers solve even the most difficult problems in accordance with your specifications.
Based on our thorough experience and development process, we have become experts for our customers when it comes to packaging power supply solutions. In this way we can relieve our customers of development and application expenses and provide the necessary environment for trouble-free operation of their devices by using our highly reliable power supply units.
Our vast experience provides a great platform for us to deliver industry specific power supply solutions.
Whether it involves meeting the demands of the rail industry, or under-standing the issues faced by communications engineers, Zentro-Elektrik has the expertise to provide application know how, working with customers from conception through to manufacture of a safe and reliable power supply solution.
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AM1DC-Z series of DC-DC converters provide ultra high I/O isolation of 6000 VDC with an isolation barrier of 2.5mm, providing supplemental isolation.
Input voltages of 5, 12 and 24 VDC converts to single and dual output voltages of (¡Ó)3.3, (¡Ó) 5, (¡Ó)9, (¡Ó)12 and (¡Ó)15 VDC with continuous short circuit protection. Operating at efficiencies as high as 79% within an ambient temperature range of -40„aC to +71„aC at full load or up to +85„aC with derating, the AM1DC-Z series is well suited for both indoor and outdoor industrial applications including motor control, test and measurement.
Designed in a compact SIP7 package (19.56 x 9.90 x 12.45mm), the AM1DC-Z ¡¥s I/O isolation barrier (2.5mm) meets the specifications outlined in the IEC 60950-1:2001 safety standard ITE (rated for 250VAC working voltage), allowing these converters to be used in multitude of space critical applications.
Made with high quality, RoHS compliant materials that undergo rigorous quality control to ensure reliability and performance, the AM1DC-Z series is competitively priced at $7.04/1000+ pieces with samples available from stock for immediately delivery.
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The revolutionary new generation of DC-DC converters, setting the standard in best-in-class topology! Highly efficient at 95%, with minimised conversion loss. Its ultra compact size reflects a super-high density. Easy mounting and connecting (plug & run), no need for auxiliary circuit design (cost & time saving), fan-less cooling = noiseless (silent) running.
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The environmentally sealed converter reduces truck battery volts to a 12 V output to supply power for vehicle lighting and accessories, including head lights, warning lights, blowers, windshield wipers and horns.
- Voltage Input Range : 24 to 48 and 72 to 80 volts
- Voltage Output : 12.5 volts DC
- Current Rating : 16 amps continuous
- Frequency : Constant - 15 kHz
- Ambient Temperature : 0° to 40° C
- Input Filter : Included for use with SCR and transistor traction controls
Features and Benefits :
- Terminals and circuitry are isolated from the converter cover - not isolated from battery input
- Thermal protection within the converter will cause the converter to operate at a reduced output in cases where it sees excessive loads, such as a continuous current draw above 16 amps, until the load is reduced
- Converter is normally energized when the key switch is closed, and ceases operation when the key switch is open
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DCP71
A high voltage version of the DC/DC converter series may be used as the power source for various industrial, railway and similar applications where a medium to high voltage supply bus is available.
* Application: Frequency Converter
* Supplied from the Intermediate Bus
* Form Factor 80 x 165 x 50 mm
* Wide Range Input 300 - 900 Vdc
* 5 Output Voltages
* Full Galvanic Insulation
* VDE 0160, VDE0106, EN60950
* Output Power 80 Watts
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15 - 16A Point of Load Converter
- Standard Industry Footprint
- 3.0-14V Inputs
- 0.8-5.0V Nominal Outputs
- Surface Mount Gnd SIP type
- Low 8.5mm Profile (SMT)
- Non Isolated Output
Other Lambda Solutions
- CC-E 1.5-12W, 1 to 2 Outputs, 5 to 48VDC Input
- PX 10-40W, 1 to 3 Outputs, 12 to 48VDC Input
- iPB 15-35W, 1.5-5V Output, 36-75VDC Input, Pico Brick
- iSA 30-78W, 1.2-12V Output, 36-75VDC Input, Sixteenth Bricks
- iEA 30-78W, 1.2-28V Output, 36-75VDC Input, Eighth Brick DC-DC
- PAE50/100 36-100W.1.9-5V Output, 36-75VDC Input. Eighth Brick DC-DC
- iEB 150W, 12V O/P, 42-56V Input, Eighth Brick Interm. Bus DC-DC
- iQD 300W, 12V O/P, 42-53VDC Input, Quarter Brick Intermediate Bus DC-DC
- iQB, iQM, iQN, iQP 30-300W, 1.2-12V Output, 24 to 48VDC Input, Quarter Brick DC-DC
- PAH300/350 300-350W, 12-28V Output, 36-75VDC Input, Half Brick DC-DC
- PAF 400-700W, 1.8-48V O/P, 24-400VDC Input, Full Brick DC-DC
- FPS 1kW to 3kW, 24-48V Output, AC-DC Front Ends
- iBC Non Isolated DC-DC Converters
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MSK DC-DC Converters are hermetic, high reliability devices aimed at Military, Space and other severe environment applications.
- -55° C to 125° C Operating Temperature Range
- Some available on Standard Microcircuit Drawings
- Extensive use of Surface Mount Magnetics - no hand soldering
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Features :
- DC input active surge current limiting
- Wide 4:1~2:1 DC input range (24V: 19~72VDC, 96V:72~144VDC)
- Protections: Short circuit / Overload / Over voltage / Over temperature
/ Input polarity(by fuse)
- 2000VAC I/O Isolation
- Forced air cooling by built-in DC fan with fan speed control function
- Output OK Signal
- Built-in remote ON-OFF control
- Built-in remote sense function
- 3 years warranty
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NAI's 55 Series 28V DC/DC Converters are a family of high power-density, low profile DC/DC converters, specifically designed for the rugged-Military and Commercial Aerospace markets. Units in the 55 Series are rated from 25 watts through 200 watts. They are available in configurations of up to 5 outputs and a wide variety of output voltage combinations. All 55 Series DC/DC converters are designed with NAVMAT component derating and have integrated EMI filters per MIL-STD-461. All units are specified over their full operating temperature range at full-load conditions.
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NAI's 57 Series 270V DC/DC Converters are a family of high power-density, low profile DC/DC converters, specifically designed for the rugged-Military and Commercial Aerospace markets. Units in the 57 Series are rated from 25 watts through 500 watts. They are available in configurations of up to 9 outputs and a wide variety of output voltage combinations. All 57 Series DC/DC converters are designed with NAVMAT component derating and have integrated EMI filters per MIL-STD-461. All units are specified over their full operating temperature range at full-load conditions.
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* 2:1 input range, input and output isolation
* Input under voltage protection
* Input polarity reverse protection
* Soft start function, low inrush current
* Over load, over voltage, short circuit protection
* Output voltage ±10% adjustment
* No minimum load requirement
* 100% 50°C burn-in test
* Meets UL, cUL, TUV standards
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The voltage required for direct current (DC) can vary considerably onboard a yacht. A bow thruster or a winch installation often works at 24V. But navigation and communication equipment mostly requires 12V.
By using a DC-DC converter other voltages than applied in your basic system can be reached. They also ensure that all your onboard equipment has a stable power supply with the right voltage. The Mastervolt DC-DC converters will be converting for comfort.
- Conversion to the right voltage
- Stabilisation of the voltage
- Longer life span of halogen lights
- Battery charger function
- Dimmer function for atmospheric lighting
- Programmable via a desktop or laptop PC
- Efficient cooling (microprocessor controlled fan)
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Current share on all outputs with ratings of 10A or greater Remote sense on all outputs with ratings greater than 2A Overload protection on all outputs Voltage adjustment on all outputs .Margining on all single output modules . Input OK signal and status indicator LED .Global DC OK signal and status indicator LED .Global and individual module inhibits/enable
2 year warranty
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When you need to provide power to auxiliary electric circuits on an electrical vehicle, Curtis DC/DC Converters offer precise regulated voltage outputs. Whether you are driving lamps, computer terminals, communication equipment, or charging auxiliary batteries, trust Curtis to achieve unmatched levels of efficiency with superior thermal protection. Safety is assured by dielectrically isolated output, thermal protection, transient protection and reverse polarity protection. Curtis DC/DC converters prevent battery damage and unsafe installations caused by tapping the battery directly.
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DCS50
Battery powered DC/DC Converters for 19 inch Rack mounting purposes are available from the Huhn-Rohrbacher Power Supply Company. The power range covers 50 to 150 watts.
* 19"-Eurostandard
* EMI Compliant Design
* 3U / 8 HP / 160mm
* Wide Range Input 2:1
* Single Output 50 Watts
* Galvanic Insulation
* CE Sign
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TPCMQ48 DC/DC Converters
1U High, Up to 700 Watts with Integral Hot-Swap Provision
* 48VDC to 12 or 24VDC
* Includes Isolated 5V, ¼A Standby Output
* Hot-Swap Operation
* Wide Range 40 to 60VDC Input
* Integral LED Status Indicators
* I2C Serial Data Bus Option
* Up to 8.8 Watts/Cubic Inch Power Density
* Low Profile: 1.6 Inches (41mm) High
* Single Hot-Swappable Connector
* Reverse Air Flow Option
* Staged Pin Engagement
* ORing Diode on Output
* 1U, 19” Rack Holds 3 Units
* Active Current Sharing
* Optimized Thermal Management
* No Minimum Load
* Control & Monitoring Features
* DC to DC Converter
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DC/DC 19“
Multiple output 50 - 70 watts
Plug-in Power Supplies for your 19-inch application.
– 19" plug-in module
– Primary/secondary insulation 3000 VAC
– Overvoltage protection
– Output permanent short-circuit proof
– Ripple at output < 25 mVpp
– Interference emission according to EN 55011 / EN 55022 Class B
– Outputs SELV according to EN 60950
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DC / DC power supplies: Converters, Modules
