TDK-Lambda introduces 400W medical power supplies
TDK-Lambda
400W EFE400M Medical range
TDK-Lambda EMEA has extended its range of EFE digitally controlled medical power supplies with the introduction of the 400W EFE400M Medical range.
Combining a 4kV AC reinforced input-to-output isolation with dual fusing and an output-to-ground isolation of 1,500V AC, the EFE400M meets EN/IEC/UL/CSA 60601-1 safety approvals for medical equipment, making it suitable for use in B (body) and BF (body floating) type medical applications.
Offered with nominal outputs of 12V/33.3A, 24V/16.7A or 48V/8.3A, all models in the EFE400M series deliver 400W continuous power - the 12 and 24V models can deliver 530W peak for 10sec - and can easily accommodate non-standard system voltages by precise factory programming.
The patented Multi-Resonant Topology helps boost efficiency to typically 90 per cent and the 8-bit microcontroller provides full digital control of the power supply.
The use of digital control allows the EFE400M to be more efficient, smaller, cooler and more feature rich - consistent with the demand for environmentally friendly products.
Standard features such as redundant operation, (complete with in-built Oring FET) and a high-current standby output (5V/2A or 12V/1A) make the supplies equally suitable for high-integrity applications including broadcast, instrumentation, routers, servers and security networks.
Other suitable applications include ATE and automation equipment.
Offered in a 6.5 x 3.5in footprint with less than 1U height, the EFE400M achieves typical power densities of up to 17.4W/in3 under peak load conditions and 13.1W/in3 under continuous loading.
Case options include open-frame, U-Chassis, cover and chassis, and cover, chassis and fan.
An additional 12V/1A fan supply is included if no fan is fitted.
All models operate from 90-264V AC input, with dual fusing as standard.
Earth leakage current is better than 300uA, fully complying with medical safety requirements.
Active power factor correction ensures EN61000-3-2 compliance.
The digital control and other EMC improving design features, such as the use of SiC diodes, ensure curve B EMC performance with a significant margin.
Further features include remote on/off and power good signals; the isolated standby supply of the EFE400M is not affected by the remote on/off.
Since the microcontroller is used to digitally predict the output voltage, the line and load regulation can be changed or fine tuned precisely - particularly useful when droop paralleling.
Protection circuitry for short-circuit, over-temperature and over-voltage conditions are also included as standard.
All models in TDK-Lambda's EFE400M range are approved to Edition 2 versions of IEC/EN/UL/CSA 60950-1 for general-purpose applications, IEC/EN 61010-1 for laboratory and process control applications and IEC/EN/UL/CSA 60601-1 for medical equipment.
In addition, the units carry the CE mark, according to the LV Directive, and come with a three-year warranty.
More stories
TDK-Lambda extends AL range of LED power supplies for lighting and signage applications
TDK-Lambda has added three power levels to its AL series LED AC/DC power supplies, which are designed for next-generation LED lighting and signage applications that require high power and a high level of reliability.
AC/DC power supplies have long capacitor life
TDK-Lambda UK has extended its ZWS-BAF series of PCB-type AC/DC power supplies by adding two lower-power models, suitable for use in factory automation, test and measurement and LED signage.
Power supplies target applications in LED signage
TDK-Lambda's ZPSA100 is suitable for applications such as LED signage and lighting, point-of-sale equipment, datacom, video/audio routers, and test and measurement equipment.
AC/DC power supplies can be used in LED signage
TDK-Lambda's ZWS-BAF series of PCB-type AC/DC power supplies is designed to meet the demands of a range of applications, including factory automation, test and measurement, and LED signage.
Power supplies suit budget-conscious applications
The LS200 line of power supplies is suited to budget-conscious applications but is also said to offer more functions than similarly priced products available on the market and can fit into a 1U rack.
