Power supplies, dc, more products
Additional dc product supply products accompany the recent Product Research article on the same topic.
By Control Engineering Staff
Below are more products to go with the June 2008 Control Engineering article,
Also see product categories for dc power supplies at www. CE SupplierSearch.com, powered by KellySearch.
Power supplies: Thin is in! PS5R Slim Line power supplies from Idec are said to provide the power of a traditional devices in half the space. The new 10 W and 15 W models are 22.5-mm wide, the 30 W and 60 W models are 36-mm wide, and the 90 W model is 46-mm wide. The 120 W unit has a width of 50mm; the 240 W device is 80-mm wide. They can be used in tight spaces or to save valuable DIN rail space while still filling necessary power requirements. The PS5R Slim Line series are UL508 listed and approved for Class I Div. 2 hazardous locations. The 10 W, 15 W, 30 W and 60 W models are also NEC Class 2 rated, while the 120 W and 240 W comply with SEMI F47 sag immunity requirements and bear the F47 Approval. Like all Idec switching power supplies, the PS5R Slim Line series has worldwide approvals, spring-up screw terminals, fused inputs, and overload protection. They are DIN Rail or direct surface mountable and have universal voltage inputs. Idec Corp .
Switch mode power supplies: The ABB CP range of switch mode power supplies offers newest technology in a compact construction with output voltages of 12 V and 24 V; adjustable output voltages (devices > 10 W); and output currents of 0.42 A, 0.83 A, 1.3 A, 2.1 A, 2.5 A, and 4.2 A. Power range is 10 W, 30 W, 60 W, and 100 W. Input options vary widely: 100-240 V ac (90-264 V ac, 120-370 V dc). The have high efficiency, up to 89%, low power dissipation and low heating, and free convection cooling (no forced cooling with ventilators). Ambient temperature range during operation is -25 to +70 °C They are open-circuit, overload and short-circuit stable, with an integrated input fuse. LEDs provide status indication. ABB
Small, safe, flexible switch mode power supplies: Phaseo switch mode power supplies from Schneider Electric are completely electronic, and their output voltage is regulated. They feature compact size; integrated overload, short circuit, overvoltage and undervoltage protection; a wide input voltage range for the universal range; diagnostics via LED indicators on the front panel, and remote diagnostics via a relay contact for the universal range. These power supplies deliver a stabilized dc output voltage that is precise to 3%, regardless of the load from an ac line supply, within the ranges of Modular, single phase input 100 to 240 V ac, output 7 W to 60 W; Optimum, single phase input 100 to 240 V ac, output 60 W to 144 W; Universal: Single phase input 100 to 120 V ac or 200-500 V ac, output 72 W to 480 W; Three phase input 380 to 500 V ac, output 480 W to 960 W; and Dedicated, single phase input 100 to 240 V ac, output 10 to 60 W to 240 W. Schneider Electric
Power conversion options: GE Industrial Systems provides various power conversion building blocks such as: ac-dc converters, ac-ac frequency changers, dc-dc voltage step-up, VAR sources, filtering, protection, application control and associated enclosures. GE Industrial Systems
External power supplies meet Energy Star requirements: Ault MW156 from SL Power Electronics is a family of 75 W external switch-mode power supplies for medical applications that comply with Level IV Energy Star requirements. The MW156 is a single output device that is available in four voltages with a power range up to 75 W. Although the medical electronics market is currently exempt from the global energy conservation standards, many medical OEMs are interested in designing devices that meet the newest environmental initiatives. By satisfying Level IV Energy Star requirements, the Ault MW156 Series meets international power supply efficiency standards, and complies with the mandatory California Energy Commission Tier 2 standard. The desktop-style power supply is said to be ideal for a wide range of applications including diagnostic and imaging equipment, monitors of all types, and portable equipment. The devices are CE-compliant and meet UL60601-1, TUV/EN60601-1 and IEC60601-1 requirements. They are available in 12-, 15-, 18- and 24 V models. Company also offers the Condor brand. SL Power Electronics
Universal converters, dc/dc : Dimension CD5 Series from Puls-US offers a complete range of DIN-rail mount 120 W dc/dc converters. Field applications of these units are diverse; generation of a stabilized control voltage in battery powered applications, galvanic isolation to avoid ground loops, mobile applications, and improved 24 V regulation at the end of long wire run. All CD5 converters have input to output isolation and are rated at 120 W with temperature range of–25 to 60 °C. Units can deliver an additional 20% power reserve, and at a width of 32 mm, they save additional space on the DIN rail. Other features include a built-in soft start, electronic inrush current limitation, input polarity protection and a comprehensive approvals package. The CD5.241-S1 has two built-in relay contacts. The "Input-Low" contact can be used to detect a battery that is discharged and the "DC-OK" contact makes it possible to build redundant systems. This unit is equipped with quick-connect spring-clamp terminals. Puls-US
Lucent power supplies: A variety of Alcatel-Lucent power supplies are available from many sources, including the MainStreet 3600 Power Supply 48 V d c from Power Supply Partner .
Packing in the power, dc/dc converters: THD-12WI Series of dc/dc converters from Tracopowerto 36 V dc or 18 to75 V dc with both single- and dual-output voltages. High efficiency operation (up to 88%) enables full load operation over an extended ambient operating temperature range of -40 to 85 °C. Internal EMI filter is incorporated to meet EN55022 Class A requirements. Additional features include 1,500 V dc I/O point isolation, remote on/off control, over-voltage protection (single output models), output current limiting, short circuit protection, and under-voltage lockout. These converters are RoHS compliant and meet EN/UL 60950-1 standards. Tracopower
Other power supply products not mentioned in the Control Engineering Product Research survey include the following.
Switching power supplies with two mounting options: Designed to meet the space and performance needs in low to moderate power I.T.E systems and instrumentation applications, the PMK320 line of high density switching power supplies from Astrodyne provides output power of 320 W with active PFC. All models accept universal input from 90-264 V ac. Six models are available that provide single outputs from 5-48 Vdc. The PMK320 series is approved for UL/EN60950-1 safety specifications. The PMK320 is housed in a rugged aluminum enclosure including a fan and screw terminals for input/output connections. The PMK320 series may be ordered in either of two fully enclosed mounting options with or without DIN Rail mounts. All models feature short circuit and over-voltage and over-current protection. The PMK320 series operates at 100% capability to a temperature range of -10 to 50 °C. Astrodyne Corp .
Power supply line adds dc / dc converters: AutomationDirect has extended its Rhino PSP line of power supplies to include dc-to-dc converters. Available with wide input ranges (9.5 to 18 V dc and 18 to 75 V dc), the four available models can be operated from all popular dc supply voltage systems. Tightly regulated output voltage provides a reliable power source for applications, such as industrial process controls, factory automation, and other equipment exposed to critical industrial environments. They can be used to isolate a specific load from the 24 V bus and offer easy installation with snap-on DIN-rail mounting and detachable screw terminal blocks. Converters are also wall mountable with included wall-mount bracket. All are backed by a 3-year warranty. AutomationDirect
New line of DIN rail power supplies offered: Automation Systems Interconnect Inc. offers what is said to be one of the most reliable and complete lines of DIN-rail mount compact power supplies available. The power supplies are “universal auto-ranging,” which means that the same part can be used with 110 V ac or 220 V ac inputs. Additionally, they offer many new features and occupy the least amount of space on a DIN rail compared to alternative designs. The primary switched power supplies (available from 14 to 2,400 W) provide a clean regulated source for dc power and are compliant with UL, CSA, and CE safety and electrical noise requirements. The 24 Vdc power supplies are available in versions ranging from 0.6 to 100 A outputs. The universal auto-ranging ac input is available in 90-264 V ac single phase, 185-550 V ac two phase, 340-550 V ac three phase, and 100-700 V dc models. Additional 5, 12, 15 and 48 V dc versions are available. All feature built-in overvoltage, over-current and over-temperature protection as well as a power loss alarm, front panel LED status indication, compact package design, and a 100% factory burn-in test. Automation Systems Interconnect Inc .
Power supply design features space-saving power IC: MC34700 power supply enables efficient control of four power rails and provides multiple output voltages for microprocessors, memory, and motors. Its IC is a 9 to 18 V quad-output integrated MOSFET device designed to reduce the complexity and streamline the development of power supplies. It is available in a 32-lead 5 x 5 mm QFN package, enabling the ability to generate up to four power rails in a small-footprint design. This capability reduces board space requirements over discrete designs. The wide input voltage range makes the device ideal for applications with a nominal 12 V supply. It has ample operating margin in systems where the 12 V supply is only 20% accurate. MC34700 is intended for applications with tight board space requirements and multiple power domains. Freestyle Inc.
– Dick Johnson, consulting editor, and Mark T. Hoske, editor in chief
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