When an AC-DC power supply’s input voltage is interrupted the DC output will only remain within regulation for a short period of time. This is specified on the power supply datasheet as the hold-up time. During this hold-up time the power supply relies on energy stored in its capacitors to maintain operation.
Hold-up time is important in certain vertical markets. The medical industry’s concern regarding hold-up time has increased since the release of the EN 60601-1-2; 2015 (Ed4) immunity standard. Primarily created to address the growing number of products used in home healthcare, this standard specifies multiple AC voltage dips ranging from 20 msec to 5 seconds. The longer outages are addressed by batteries or by designs that ensure no harm will occur to the patient or operator if the power supply output voltage drops out of the regulation band.
Airborne equipment is covered by the DO-160 standard. Section 16 of the standard refers to power input, simulating conditions of aircraft power from before engine start (using auxiliary ground based power) to after landing, including emergencies. The requirement is for a hold-up time of at least 200 msec.
In a recent article on their Power Supply Blog, TDK Lambda explores power supply hold-up time: What it is, where it’s important and, most importantly, several technical approaches for extending hold-up time. You can read that article here.
If you would like to discuss extending hold-up time in your system, contact Cover 2 Sales so that we can arrange a conversation with a TDK Lambda applications engineer.
With meticulous engineering and advanced electronics, ElectroCraft’s CompletePower™ speed controls, CompletePower™ Plus servo drives, and PRO Series Programmable Drives offer unprecedented reliability and flexible motion control in compact packaging. From precision medical dosing systems to the rugged performance of industrial automation systems, there is an ElectroCraft drive product available for your applications.
The Universal Drive is the newest addition to ElectroCraft’s CompletePower™ Plus family of DC motor drives. The Universal Drive takes performance, efficiency and flexibility to the next level, utilizing state-of-the-art digital drive technology combined with an intuitive and highly configurable user interface. Perfect for a wide range of industrial, commercial market, and consumer product applications. There are four standard capacities in the model lineup. Customized versions are also offered to meet large volume OEM requirements.
ElectroCraft’s PRO Series is a full programmable motion controller with unprecedented flexibility in a compact footprint. It is capable of powering PMDC, brushless and stepper motors (both open and closed loop). It is also avaialble with an optional EtherCAT® network interface.
For more information about ElectroCraft, or to discuss your motor drive, motor control, or motor needs please contact Cover 2 Sales.
Virtium recently expanded their StorFly® line of industrial-grade SSD’s, boosting storage capacity in drives that protect critical data in embedded systems. The Virtium StorFly line features industrial temperature (I-Temp) SSD’s with continuous operation in temperatures from -40C to 85C.
SSD capacity for embedded-industrial applications follows a different principle than storage for enterprise and consumer applications. StorFly drives are designed to provide secure data storage optimal for demanding applications such as data logging and high-definition video and audio. These applications require a balance between the maximum allowable capacity and drive integrity that can be compromised by heat and other adverse conditions. The StorFly line with I-Temp now includes SSD’s with up to four terabytes (TB) of capacity:
- 1TB M.2 SATA
- 2TB M.2 NVMe
- 4TB 2.5-inch SATA
Read the entire press release about these higher density solutions here.
For more information on Virtium’s industrial-grade SSD’s – or their industrial-grade DRAM modules – please contact Cover 2 Sales.
Power supply Technical Center certified to ISO 13485 – the first ever in Japan
Press Release July 20, 2020
TDK Corporation (TSE 6762) is pleased to announce that TDK-Lambda Japan received ISO 13485:2016 Medical Devices – Quality Management System – certification for the TDK-Lambda Nagaoka Technical Center (Nagaoka City, Niigata Prefecture, Japan). This is the first time a standard switching power supply manufacturer in Japan has received ISO 13485 certification and brings the group total to five locations. The scope of this latest registration covers the Design/Development, Manufacturing and Servicing Activities (Analysis, Repair and Overhaul for Field Returns) of Components (Switching Power Supply) for Active Medical Devices. Now, five of TDK-Lambda’s major development, design and production sites in Japan, the United Kingdom, the United States of America, China, and Malaysia have been certified. This enhances the Group’s capability to provide products and services to the global medical device market.
TDK-Lambda has focused on the medical device market, developing a large portfolio of medically certified products to the international IEC 60601-1 standard. Adopting ISO 13485 provides a practical foundation for manufacturers to address the Medical Device Directives, regulations and responsibilities. It demonstrates a commitment to the safety and quality of medical devices.
To read the entire press release, please see this link.
For more information about TDK Lambda – or to discuss your power requirements – please contact Cover 2 Sales.
TDK Lambda has recently released the compact CUS400M series of single-output AC/DC power supplies. The supplies offer either 12V or 24V DC output with 15V, 19V, 28V, 36V and 48V versions to follow. The CUS400M is packaged in the industry standard 3″ x 5″ footprint and can deliver 400W with forced air cooling.
The CUS400M can be used in both Class I and Class II (no earth wire) applications and offers efficiencies of up to 94%.
An option board providing a 5V 2A or 12V 1A standby voltage, remote on/off, remote sense, DC OK signal and AC fail signal is also available.
Mechanical options include metal base plate, U channel, cover and top mounted integral fan.
Safety certifications include IEC/EN/ES 60601-1 and IEC/EN/UL 62368-1 with CE marking for the Low Voltage, EMC and RoHS Directives. The units comply with EN 55011-B and EN 55032-B conducted and radiated emissions and meet the EN 61000-3-2 harmonics, IEC60601-1-2 Edition 4 and IEC 61000-4 immunity standards.
Typical applications include medical (B and BF type), home healthcare, dental, test and measurement, broadcast, professional audio and industrial equipment.
For more information about the CUS400M power supplies, to discuss your power needs, or to request a sample, please contact Cover 2 Sales.