AC/DC power supplies are designed for long-life LED signage

Convection and conduction cooled power supplies from TDK Lambda include 3.3, 4.2 and 28V models. The CUS200LD series of AC/DC power supplies are rated from 79 to 120W with convection cooling and 99 to 151W when mounted on an aluminium plate for conduction cooling. The series can deliver up to 206W for 10 seconds, says TDK. The CUS200LD series conservative capacitor ratings are designed for long field life in LED signage applications, as well as industrial, broadcast, test, measurement and communication equipment.

The supplies accept a wide range 85 to 265V AC input, and is now available with 3.3, 4.2, 5.0, 7.5, 12, 15, 24, 28 and 48V outputs. All models are adjustable over a ±10 per cent range to accommodate non-standard voltage requirements.

The CUS200LD is packaged in a compact low profile enclosure, measuring 160 x 60 x 31mm. All models will start up at -40 degrees C and can operate in ambient temperatures from -20 to +70 degrees C, derating from +45 degrees C (conduction cooling) to 40 per cent load at 70 degrees C.

Safety certification is to the IEC/EN/UL 60950-1 standards with CE marking for the Low Voltage, EMC and RoHS2 Directives. The units also comply with EN 55011-B and EN 55032-B conducted and radiated emissions, and meet the EN 61000-3-2 harmonics and IEC 61000-4 immunity standards.

TDK is a leading electronics company based in Tokyo, Japan. It was established in 1935 to commercialise ferrite, a key material in electronic and magnetic products. The portfolio features passive components such as ceramic, aluminium electrolytic and film capacitors, and magnetics, high-frequency, and piezo and protection devices. The product spectrum also includes sensors and sensor systems such as temperature and pressure, magnetic, and MEMS sensors, power supplies and energy devices, magnetic heads, under the product brands TDK, Epcos, InvenSense, Micronas, Tronics and TDK-Lambda.

TDK-Lambda is a power supply company providing power supplies for industrial equipment worldwide.

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RDS offers Fujitsu’s latest Mini-ITX for secure industrial operation

Designed for the harsh, demanding industrial environments across a range of markets, the Fujitsu Mainboard D3633-S Mini-ITX is now available from embedded hardware and display specialist, Review Display Systems (RDS).

This latest addition to Fujitsu’s Industrial series is powered by the Intel Q370 Express chipset which supports Intel’s 8th generation Core i7/i5/i3 processors or the Intel Pentium/Intel Celeron processors, for high-performance computing performance in demanding applications.

Security features include hardware watchdog support, recovery BIOS, boot sequence control, serial/USB port access protection and Trusted Platform Module (TPM) protection with Infineon’s SLB9670 SPI (serial peripheral interface) for encryption protection to TPM V2.0.

The impressive array of capabilities includes extensive memory capabilities: DDR4 2666 dual channel SDRAM and two SO DIMM sockets, providing up to 32Gbyte memory capacity.

For graphics performance, the 170 x 170mm Mini-ITX incorporates an Intel UHD graphics processor, two DisplayPort V1.2 and a DVI-D port, support for two lanes of Embedded DisplayPort (eDP) V1.4 and dual channel 24-bit LVDS. A Realtek ALC671 high-definition audio codec is also integrated.

Furthermore, there is support for Intel AMT 12.0/vPro for remote management and for PCI Express x 16 (Gen 3). For networking options, there are two Intel GbE LAN, Wake-on-LAN (WoL) functionality and Magic Packet technology for power management.

Expansion options include one Mini-PCIe supporting PCIe Gen 3 and USB 2.0, USB 3.1 (Gen 1 and Gen 2) sockets, four SATA ports and one M.2 socket, together with GPIO ports, and legacy ports, such as COM, mouse and keyboard.

Specifically designed for industrial applications, the D3633-S Mini-ITX will be available for more than five years and has an extended lifecycle of up to six years, says RDS.

The mainboard has industrial-grade EMI immunity and can operate at the enhanced temperature range of 0 to +60 degree C. It is also designed and approved for 24/7 continuous operation.

Operating systems supported are Windows 10 and Linux.

The D3633-S Mini-ITX will be released in September 2018.

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MIPI DSI displays offer projected capacitive touch

Display, monitor and embedded computing specialist, Densitron, has launched a set of MIPI display serial interface (MIPI DSI) displays for a variety of applications, ranging from security, broadcasting, telecom and process control systems to smart meters. The move reflects the growing demands for the same premium quality, high-resolution graphical display technology used for personal mobile devices to be tailored for use in industrial applications, says Densitron.

The MIPI DSI displays are available in three sizes, four, 4.3 and five inches (101, 109 and 127mm). In addition to high colour saturation, they are claimed to have outstanding readability at all viewing angles and projected capacitive touch (PCT) and optical bonding options. There is also the possibility of adding haptic feedback technology to provide the sensation of touch when a user makes contact, as well as lens customisation for all of these options.

The displays enable low power, low electromagnetic interference (EMI) yet allow for the interconnection of other components such as cameras for high performance applications.

“Densitron believes MIPI DSI will become the next generation standard for display technology,” says Luo Luo, Densitron global product manager, TFT.

“Traditional interfaces won’t support the advanced display technologies now demanded by consumers,” he continues. “Using extra data channels and increasing transmission speed to host the higher resolution is already increasing EMI susceptibility and radiation. MIPI addresses these shortcomings, enabling content-rich display technology without the huge strain on interface connections.”

Using a reduced number of wires and operating at a lower power consumption to conserve battery life, the MIPI DSI interface handles very fast speed signals for driving high resolution, premium performance displays, from HD to FHD and beyond, says Densitron. Using a simplified pin count for a reduction in electrical noise and, therefore, limited EMI susceptibility.

The MIPI DSI range is supported by Densitron’s new Aurora SBX which provides a development platform to create modern graphics user interface (GUI) applications to develop and power functionality in a fully-operational human machine interface (HMI) for a range of industrial applications.

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LED regulator can be configured in choice of operation modes

A DC/DC µModule regulator from Analog Devices is designed to drive LEDs. The Power by Linear LTM8005 regulator includes a DC/DC controller, power switch, Schottky diode and current sense resistor in a 9.0 x 11.25 x 2.22mm BGA package.

The LTM8005 operates from a 5.0 to 38V input voltage range and can deliver up to 1.6A of regulated current at an output voltage of up to 38V. An external inductor enables the LTM8005 to configure in different operation modes including boost, buck-boost, buck and SEPIC topologies, with a coupled inductor.

The high-reliability H-grade version guarantees operation from –40 to +150 degree C. The wide input voltage range and +150 degree C operation make this µModule LED driver suitable for use in automotive and industrial lighting applications.

The operating frequency is adjustable from 100kHz to 1MHz, while integral spread spectrum frequency modulation improves EMC performance, claims Analog Devices. LED brightness can be controlled by the analogue CTRL pin and by PWM dimming with a range up to 3,000:1. The LTM8005’s safety features include output disconnect short-circuit protection, open LED protection, programmable input current limit, as well as, input and output current reporting.

The E and I grades of the LTM8005 operate from –40 to +125 degree C.

The LTM8005 is in production now.

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