Powering biomedical devices for neurovascular treatment


Many skin disorders can be treated using a neurovascular approach through the use of electrodes attached to the body. As this equipment can be used for home healthcare, nursing homes and clinical, the AC-DC power supply should conform to the IEC 60601-1-11 safety standard. A designer and manufacturer of neurovascular treatment products chose two of TDK-Lambda’s medical products for their latest series of equipment.

The new 65W DTM 65C-8 external (adaptor) power supply has the latest certification for home healthcare, including a Class II, 2-wire input (requiring no earth ground connection) and is providing the DC power from the mains input.

The 6W PXC-M DC-DC converters were chosen because of their 5,000Vac input to output isolation and medical certifications.

Follow this link to read more about the full range of medical power supplies from TDK-Lambda.


New 1500W Modular Power Supply Unveiled at EDS

TDK-Lambda will be exhibiting at the Coventry Engineering Design Show (EDS) during October 19 – 20th, 2016. On the K30 stand will be TDK-Lambda’s new QM7 1500W modular AC-DC power supplies, providing Engineers an opportunity to see this innovative product for the very first time. Also on the stand will be the recently released CUS-M series of 200W to 420W medical and industrial power supplies and the triple output CUT75.

The QM7 is the first 1200-1500W series of modular supplies to have full MoPPs isolation, making them suitable for BF rated equipment. The high efficiency modular power supplies also offer the lowest acoustical noise available on the market at this power level. This makes them ideally suited for a wide range of medical equipment, test and measurement, broadcast, communications and renewal applications where loud audible noise cannot be tolerated. The series can provide up to 16 outputs with voltages ranging from 2.8V to 52.8V and currents up to 110A, utilising a number of modules delivering power levels of 35W to 1200W. The seven-year warranty is also industry leading.

QM7 Range

QM7 Range

Packaged in a compact 176 x 63.3 x 270mm size, the entire unit or individual outputs can be remotely turned on or off, and DC Good and/or AC fail signals can provide product status. 5V or 12V standby outputs are available as an option.



The CUS200M and CUS350M series also have both IEC 60950-1 and 60601-1 safety certifications. The 200-250W models are packaged in the industry standard 76.2 x 127mm (3 x 5”) footprint and the 350-420W in a compact 190 x 87mm (7.5 x 3.4”) size. Both offer convection and forced air cooled ratings, standby outputs and remote on/off. Like the QM7, they have full MoPPs isolation and are suited for BF rated equipment.



Unusual for a low power multiple-output power supply, the 75W rated convection-cooled CUT75 requires no minimum loading to maintain output regulation. The triple output unit is available with 5V +/-12V or 5V +/-15V outputs, and due to being isolated from the main output, the +/- auxiliary outputs can be configured as single 24V or 30V output. The CUT is also packaged in the industry standard 76.2 x 127mm (3 x 5”) footprint, and is only 27mm tall.






RWS-B and LS Series warranties extended

TDK Corporation is pleased to announce that effective October 1st, 2016, the warranties on its TDK-Lambda RWS-B series general purpose AC-DC power supplies have been extended from 5 to 7 years. At the same time, warranties on its LS series general purpose AC-DC power supplies have been extended from 3 to 5 years.


“TDK-Lambda offers a broad range of power supplies to address customer requirements and provide value for money across many diverse applications,” said Martin Southam, EMEA Marketing Director, TDK-Lambda. “Based on excellent field reliability data since their introduction, this announcement demonstrates our confidence in the quality and reliability of the RWS-B and LS series, further helping differentiate TDK-Lambda power supplies from competing products.”


On January 2nd, 2008, TDK-Lambda announced a limited lifetime warranty for its highly reliable HWS series – a world first for an industrial power supply company, which was later extended to its HWSA series, significantly differentiating the series from lower cost competitors. Over eight years later, TDK-Lambda is still the only industrial power supply company to back its premium product series with such a comprehensive warranty.


Vehicle engine test bench power supplies

Genesys™ Programmable Power Supply

With an emphasis on fuel efficiency and environmental regulations, vehicle engines are becoming more complex, especially those used in large trucks. Thorough testing of engines during the production process is essential to identify any potential production quality issues at an early stage.

Several different 5kW Genesys™ programmable power supplies have been selected by an engine test rig provider, as they require the high precision analysis and monitoring that TDK-Lambda’s product provides. Price, local support and short lead times were also highly appreciated by the customer.

TDK-Lambda offers a wide range of Programmable Power Supplies for industrial, test and measurement applications, click for more information.



Testing semiconductors

Z plus 500 125

Semiconductor testing is often performed at a wafer level to determine yield levels; after which, the wafers may be stored prior to packaging in order to meet quick delivery demands.

As space in a semiconductor clean room is limited and usually at a premium, overall test equipment size is a concern. One European semiconductor company chose the 800W TDK-Lambda’s Z+ model for its compact size, being just 2U high and 70mm wide. The entire Z+ series has, as standard, a number of communication and programming interfaces, including USB, RS232 & RS485.

TDK-Lambda offers a wide range of Programmable Power Supplies for industrial, test and measurement applications, click for more information.



Power supplies for isotope production

genesys 1U

A “PET scan” (Positron Emission Tomography) is a routine imaging test used by many hospitals to detect diseases in human bodies. Using a dye injected into a vein containing very low level radioactive tracers, doctors can analyse problems at a cellular level, giving more information than using CT or MRI scanners. This test can show how a disease is spreading or how it is responding to treatment.

A manufacturer of cyclotron equipment for the production of those isotope tracers picked TDK-Lambda Genesys™ programmable power supplies because of their known reliability and quality. The two models are rated at 2400W and are housed in 1U high enclosures, saving space, allowing the end equipment to be physically smaller.

TDK-Lambda offers a wide range of Programmable Power Supplies for industrial, test and measurement applications, click for more information.



10kW and 15kW programmable power supplies have CE mark and RoHS 2 compliance

TDK Corporation announces that the TDK-Lambda Genesys™ 10kW and 15kW series of programmable power supplies are RoHS 2 compliant. All models having an output voltage between 30V and 1500Vdc and those with less than 30V output (with an input voltage of 208Vac or 400Vac) now carry the CE Mark in accordance RoHS2 Directive 2011/65/EU in addition to the 2014/35/EU and the EMC Directive 2014/30/EU previously covered.

Genesys 3U High Voltage

Carrying a five-year warranty, the Genesys™ 3U AC-DC programmable power supply series share common front panel features and compact dimensions (3U (133mm) high and 19” (483mm) wide). A wide choice of output voltage and current combinations is available including 7.5V at 1000A to 1500V at 10A models, and all units will operate in either constant voltage or constant current modes.

Programming methods include built-in RS232 and RS485, as well as optional LAN, GPIB and isolated analogue interfaces. Input voltages include 3-phase 208Vac, or a 3-phase 400 or 480Vac and have passive power factor correction.

These high power systems address the requirements for applications in the OEM, industrial, aerospace and ATE markets including: semiconductor and automotive test, component test and burn-in and magnet supplies.

For more information about the full range of TDK-Lambda Genesys™ series of programmable power supplies, please call TDK-Lambda directly on +44 (0)1271 856600 or visit the TDK-Lambda website at: www.uk.tdk-lambda.com/genesys


Introducing the KWS-A single-output 5-25W AC-DC PCB-Mount Power Supplies

Capable of operating in ambient temperatures of up to 85ºC, the KWS-A series of single-output AC-DC PCB-mount power supplies comprises four power levels, 5W, 10W, 15W and 25W. With a Class II input, the products require no earth ground connection, making them suitable for use in a range of process control, broadcast, test & measurement and industrial equipment. Four popular output voltages are available, 5V, 12V, 15V and 24V, and all operate from a wide range input voltage of 85 – 265Vac, 47 – 440Hz.

Click here to read more about the full range of AC-DC power supplies from TDK-Lambda, or click here for the KWS-A series product page.

If you have a question you’d like to ask TDK-Lambda, please feel free to use the online FAQ form and we’ll get back to you with an answer to your question as soon as possible.


Powering continuous feed inkjet printers

RFE Single-output 1U front end power supplies

Inkjet printers are a common sight in most households, and regularly produce documents for school and domestic projects. Inkjet printing for commercial use has now gained popularity with companies requiring low cost, high speed, high resolution printing for direct mail and other opportunities.

The very compact, 2500W rated, TDK-Lambda RFE2500 is now being used by one continuous feed inkjet printer producer, where the customer recognised the technical support provided by TDK-Lambda’s sales team. The RFE2500 series offers a power density of 24.9W/in³, measures just 41mm high and has efficiency levels of up to 92%.

TDK-Lambda offers a wide range of Industrial Power Supplies for industrial applications, click for more information.



1200W – 1500W modular power supply series has lowest acoustic noise and full MoPP isolation

TDK Corporation announces the introduction of the QM series of AC-DC power supplies; the first 1200W to 1500W rated modular series to have full MoPPs isolation, with the lowest acoustic noise available on the market at that power level. This product is the latest in a 37-year heritage of modular power supplies, beginning with the invention of the ML series – a world first in 1979. Having both medical and industrial safety certifications, the QM is suitable for a wide range of applications, including BF rated medical equipment, test and measurement, broadcast, communications and renewable energy applications.


Product definition is made extremely easy with an online configurator, giving an optimised module selection with a choice of signals, leakage current and standby voltages. Once the desired output voltages and currents have been entered, the configurator will automatically produce a unique 8-digit code for easy order placement.

With a wide range 90-264Vac, 47-440Hz input the QM can deliver 1200W, and 1500W with a 150-264Vac input. Up to 16 outputs can be provided, with voltages ranging from 2.8V to 52.8V, with additional higher voltages later. Module power ratings start with a low power 35W, with single or dual outputs, all the way to a powerful 1200W single output. The units will operate in ambient temperatures of -20 to +70°C, derating output power and output current by 2.5% per °C above 50°C. Overall case dimensions are a compact 176 x 63.3 x 270mm (W x H x D), and the weight is between 2.6 and 3.1kg, depending on the module configuration. The QM is covered by an industry-leading seven-year warranty.

An optional standby/signal module is available with a choice of one or two standby voltages (5V and 12V at up to 2A). It also contains unit inhibit or unit enable, plus an AC Good signal. All the output modules are fitted with module good, module inhibit signals and remote sense* as standard (* excluding the dual output DH module).

The QM operating efficiency is as high as 91%, reducing internal heat loss, allowing the use of low speed cooling fans. This reduces audible noise for an enhanced patient/user experience to just 44.3 dBA at room temperature and 45.3 dBA at 50°C – measured in accordance with BS EN ISO 3744:2010. As less ingress of dirt and contaminants is drawn into the power supply than those with traditional high-speed fans, greater reliability can be realised.

The units are certified to IEC/EN/UL/CSA 60601-1, ANSI/AAMI ES 60601-1, IEC/EN/UL/CSA 60950-1 and designed to meet IEC/EN61010-1 with CE marking for the Low Voltage and RoHS2 Directives. With an input to output isolation of 4,000Vac (2 x MoPPs), 1,500Vac input to ground (1 x MoPP) and 1,500Vac (1 x MoPP) output to ground, the series can be used in BF rated medical equipment. The QM has a maximum earth leakage current of 300µA, while still complying with the EN61000-6-3:2007 and EN60601-1-2:2015 (curve B conducted and radiated) emission standards. The units also meet the EN60601-1-2 and EN61000-6-2 immunity standards and are designed and manufactured under the control of ISO9001 and ISO13485 (including risk management).