Understanding the system's peak power requirements may help enhance system reliability & reduce the total system cost.
Devices Requiring Peak Power
Fans
Pumps
Solenoids
Motors
Thermal Printer
Fans, Pumps, Solenoids, Motors, Thermal Printers, Robotic arms, test equipment, industrial automation tools, power modules for 5G communications, hospital beds, conveyor Belt Systems. TDK-Lambda’s Technical Support can assist you in choosing the right product for your application.
Peak Power
Electrical and electronic circuits can demand higher peak currents compared to their normal operating modes, especially when powering inductive or capacitive loads. When initially turned on, a power supply’s soft start feature will usually avoid high currents from being drawn. Once the system is operating normally, peak loading may add additional challenges. Surge demands may occur when a solenoid is activated, a fan’s speed is accelerated to provide additional cooling, or motors in a robot or hospital bed are powered up to provide motion.
Under these intermittent operating conditions the power supply has to be able to cope with a surge in load demand for low duty cycles for a short durations, without any disruption to the output voltage. One solution to this problem is to utilize a power supply that can continuously deliver that peak demand, at a higher cost or even with a lower performance. Alternately a smaller power supply can be used provided it is capable of providing peak power demands for short periods of time, without compromising reliability.
DC-DC converters are being used in applications like robotics, where these higher power needs are common, however, this market has extreme space limitations. 5G wireless systems are becoming more commonplace, where the peak to average demand (crest factor) is increasing threefold or even higher.
Selecting power supplies that are rated for the nominal power consumption, but designed to handle intermittent peak currents and higher temperatures for short periods of time, will provide smaller and better and higher performing products.
Challenges
Many electronic loads demand load surges in excess of the nominal operating conditions. These should be measured, analysed and included in the system’s power “budget”.
Relying just on testing may not reveal that the power supply is exceeding its rated current and may in fact be very close to triggering the over current protection circuit. Repetitive peak currents are known to increase power supply internal temperatures, stress semiconductors and electrolytic capacitors, resulting in premature failures. It can also result in unwanted conductive contaminants being drawn in to the power supply that can lead to failures.
TDK-Lambda offers a number of products that are designed to offer peak power capabilities. These products are rated accordingly and state how much peak power can be safely delivered, for what time period and how often the peak can occur.
Peak power products will often provide a smaller, lower cost, low audible noise, convection-cooled solution compared to a fan-cooled power supply that is rated for continuous operation at the peak power level. An example of this would be a motorized adjustable hospital bed. It will have a very low quiescent power consumption, but when the mattress position is changed, the motors could draw hundreds of Watts for a few seconds. A fan-cooled power supply can generate a level of audible noise that is unacceptable to patients or staff.
Explore some of our products that can be used in peak power applications
HWS-P Series - 300W to 601W - Single Output
♦ Limited Lifetime Warranty
♦ 300% Peak Power Capability
♦ Small Package Size
♦ Universal Input (85 - 265VAC)
♦ High Efficiency
CUS400M Series - 250W to 400W - Single Output
♦ 250W Convection/Conduction Cooled with 400W Peak for Extended Time Periods
♦ 400W with Forced Air
♦ Medical Certifications (2 x MOPP)
♦ Class B Conducted and Radiated EMI
♦ Suitable for Class I and Class II installations
♦ Compact 3 x 5 x 1.55” Size
CUS600M Series - 400W to 600W - Single Output
♦ 400W (600W Peak) Convection Cooled
♦ 600W with Forced Air
♦ Medical Certifications (2xMOPP)
♦ Class B Conducted and Radiated EMI
♦ Suitable for Class I and Class II installations
♦ Compact 3 x 5 x 1.46” size
DRF Series - 120W to 960W - Single Output
♦ Very Compact Size
♦ High Efficiency (Up to 95%)
♦ 150% Peak Power Capability for 4 seconds
♦ Remote On/Off
♦ Remote Voltage Adjustment
♦ Hazardous Location Option (/HL)
CUS350MP Series - 350W to 1000W - Single Output
♦ 1000W Peak Power Capability
♦ Standby output 5V / 0.3A
♦ Small package Size
♦ Medical Certification (2x MoPP)
♦ Five year warranty
ZWS-BP Series - 150W to 240W - Single Output
♦ Convection Cooled
♦ 200% Peak Power Capability
♦ Operating temp. -10°C to 70°C
♦ 10 Year e-cap Lifetime
♦ Five year warranty
DRB Series – 15W to 960W – Single Output
♦ Single and Three Phase Input Models
♦ High Efficiency, up to 96.3%
♦ Long E-Capacitor Life
♦ Peak Power Capability Models Available
♦ UL1310 Class 2 Compliant Models (<100W)
♦ Class 1 Div 2 Compliant Models (<100W)
♦ Three year warranty
Why TDK-Lambda?
A development process requiring products to meet or exceed stringent internal design guidelines. Products are subjected to a series of rigorous reviews with brutally honest and logical judgements at each stage.
Large, global, fully-qualified component database giving economy of scale and long product life cycles
Worldwide unified design standards
Best in class operating life times, field failures are reduced by designing E-caps for 15+ year life, applying proper electrical and thermal derating, and use of high quality components
Higher efficiency and advanced thermal management result in lower operating temps, longer life and lower total cost of ownership
Detailed EVT/DVT test plan incorporating lessons learned from decades of experience in field applications
Uncompromising Product Qualification consistent with IPC9592B guidelines - HALT, TCT, THB, HASS, shock and vibration, demonstrated life testing
Reliability models and component stress analysis; MTBF, Bel-core, Mil-Std-217 and DMTBF analysis in production
Quality can never be assured by final inspection. Quality is an integral part of everything we do. Our process includes a tightly controlled approved vendor list (AVL), incoming inspection, rigorous testing, field proven topologies and components, test data validation, and extraordinary process reliability. These factors combine to generate elite product quality levels.
Industry-leading warranties
Rigid component AVL selection and management process
A supply chain committed to utilize only authorized sources of supply
Advanced statistical controls, Process capability index – Cp, CpK requirements
Pilot production process to study processes and guarantee high manufacturing yields within specification
Many process inspection controls including checkpoints at component, sub-assembly, and final product levels
Professional Failure Analysis to identify root cause to component level
Corrective Action reports (8-D) accompanied by extensive technical support to help resolve application issues and prevent additional failures
Our position as a highly experienced, leading global supplier means we can capitalize on our extensive Advanced Technology Research. Our collaboration with top universities and our expanding portfolio of over 700 patents offers assurances we will provide the next generation of innovative, leading edge power solutions to our customers. Highly motivated R&D teams, located in design facilities worldwide, apply knowledge of the key attributes from a myriad of different applications gained from years of experience.
Leaders in development and practical application of advanced technologies
Higher Efficiencies – leading to less waste heat generation, enabling greater power densities and smaller product sizes
Detailed thermal analysis with derating, allowing peak power requirements commonly found in medical equipment to be delivered reliably and safely without oversizing (and overpaying) for the power supply
TDK-Lambda has benefited from TDK's acknowledged expertise in ferrite and multilayer capacitors by jointly developing advanced components to improve the efficiency and performance of TDK-Lambda's power supply products
Integrating the latest components (GaN semiconductors), topologies (bridgeless totem pole PFC), and design techniques (full digital control)into our latest product designs such as the PFH
In house firmware and software development to develop IP and respond quickly to customer modification requests
Manufacturing is done in TDK-Lambda owned factories. This allows advanced process development and new manufacturing techniques can be seamlessly incorporated into products.
Highly automated DVT and thermal characterization testing process allows testing over a broad range of operating conditions and guarantees consistent results
TDK-Lambda has the unique ability to leverage our global platforms to best utilize the strength of our worldwide engineering teams. This enhances our abilities in quality, reliability, customer support, and innovation for new products.
Six Global Engineering centers of expertise; Japan, China, Singapore, UK, Israel, USA
Attracting & retaining Good Talent - TDK has R&D centers near major universities (Bristol, UK; Tokyo, Japan; Karmiel, Israel)
All TDK-Lambda engineering and sales centers, plus our directly owned factories are ISO9001 and ISO14001 certified
Extensive library of innovative field-proven designs
Comprehensive in-house qualification and validation facilities with FA down to component level
TDK-Lambda has celebrated more than 71 years in the business, demonstrating our longevity in the highly competitive world of power supply design and manufacturing. Since 1945, we have developed a worldwide reputation and heritage for high quality, robust power supplies. As of October 1, 2008, Lambda was fully integrated as part of the Power Systems Business Group of TDK Corporation and became TDK-Lambda Corporation, Inc. Our parent organization, TDK Corporation, is a leading $12+ Billion global electronics company, headquartered in Tokyo, Japan. TDK was established in 1935 to commercialize "ferrite", a key material in electronics and magnetic products.
Diversified Market strategy (Industrial, Medical, Telecom, COTs) has enabled TDK-Lambda to weather the economic market changes
TDK-Lambda sales rank in the top 10 global power supply companies
Uniquely we can provide the optimum manufacturing strategy for your needs in our own fully equipped plants from low volume to high volume manufacturing. We have multiple strategically located warehouses, offering a full menu of logistic services including tailor-made solutions.
Samples, pilots and prototype units from a channel strategy geared around speed & availability
Factories designed and equipped with logistical capabilities capable to scale during growth cycles
TDK-Lambda owned warehouses located in all five (5) key geographic locations
Established set of Distribution partners, carrying more than $25 million in inventory
Program End-of-Life logistic strategies
Power+ Solutions is an extension of value add, where we integrate more of the power assembly around the power supply to offer avenues to increased productivity, lower costs, and offer more flexibility
Our Value Add Solutions & Capabilites is an extension of our standard product platforms, where we integrate more of the assembly and external features around the power supply to offer avenues to increased productivity, lower costs and more flexibility. Our New Jersey manufacturing facility is ITAR certified.
