Roberts Warr Electronics News & Resources

The new 400-watt MPM-842P medical grade has been introduced by Magic Power Technology Inc. This device is designed for medical equipment that require higher operating power.

The device is compliant with UL 60601-1 and IEC 60601-1, meets EMI IEC 60601-1-2 Class B, operates over a wide 90 to 264VAC input range, and provide short-circuit, over voltage and thermal protection.

The MPM-842P is a great choice for medical applications and offers competitive densities without performance deratings from 0 to 50°C. The device has active power factor correction, CE Mark for the European Low Voltage Directive, isolating the groundings between primary and secondary.

A new inductor technology, much more efficient than the previous one, has been announced by West Coast Magnetics.

It combines the low DC resistance of a foil wound inductor with the low AC resistance of a litz wire wound inductor. The technology fits with the newer classes of silicon devices designed to operate at current levels of 100 amps and up and at frequencies over 10 Khz.

EcoLEDLighting has recently introduced fully dimmable MR16 lamp replacements. They reduce heat output by 80% and use 75% less energy.

To fulfil the specific requirements for this new technology, EcoLEDLighting needed to find a company that was able to meet the reqirements. Powerstax provided systems comprised of a high efficiency, ultra-compact 10W AC to DC, universal input voltage and encapsulated power supply. The product will be a lead-in, lead-out “lump in a cord” design and will have a remote control interface.

The new 150-watt MPD-815H 24V DC input to ATX output power converter has been introduced by Magic Power Technology Inc. The device is RoHS compliant, fits within 1U height constraints and is designed to be invention cooling.

It provides U-channel chassis for heat conduction. The design increases the performance, reduces the dust and has no noise. The MPD-815H operates over 18 to 36 VDC input range and provides over voltage and thermal protection.

The TSP Series by Power Sources Unlimited provide good power even in the most difficult factory conditions. They have rugged metal case, complete with shock and vibration proof construction. The device is the best choice for power
sensitive loads in industrial process controls, machine tools or other hard applications.

Standard models are available with adjustable output voltages of 12, 24 and 48VDC, and have ratings up to 25A. The operating temperature is between -25 degrees C to +70 degrees C. The power supplies provide thermal overload protection and have remote on/off.

The new device by Acopian meets the safety regulations and applications requiring allowance for environmental conditions. The enclosures provide protection from dust, other airbone particles, dripping, splashing liquids and prevent accidental contacts by personnel.

To the initial offerings, power supplies with higher wattage outputs have been added. Outputs up to 30 watts are available from mini power supplies mounted in NEMA enclosures with a footprint of 4 3/4″ x 4 3/4″.

The single-output device by Acopian provide from 3.3 to 125 volts and deliver up to 288 watts in applications where other supplies won’t fit.

Power factor correction and output inhibit capability are features met with Models with outputs greater that 120 watts. The temperature of all models varies from 0 to +71 degrees Celsius. Amongst other features there are: remote sensing capability, overload, over-voltage, short-circuit and thermal protection.

The kHz switchers are very small (1.7 x 3.5 x7 inches). They include an input filter, have line regulation of ± 0.05 percent, load regulation of ±0.05 percent, and transient response of 300 microseconds for a return.

The 15-watt TPS-series is a product of medical UL60601 power supplies. The devices accept AC or DC inputs and provide single dual and triple outputs. Output voltages range from 3.3VDC to 24VDC.

Operating temperature ranges from -25 degrees C to +70 degrees C. Standards are RoHS compliance, over current, short circuit, over voltage and over temperature protections.

The products feature also chassis-mount packaging with a variety of input and output connection variations.

CEC Compliant External Power Supplies is a product line of desktop power adapters by Power Sources Unlimited.

The devices may be used in communications, instrumentation, and computer peripherals. Their output power ranges from 20W to 63W, whereas their sigle output are fully regulated and ranges from 5VDC to 50VDC. All models are highly efficient, feature an 85-264VAC input and comprehensive protection circuitry. The operating temperature varies from 0C to 70C. The CEC Compliant External Power Supplies have safety certification to EN60950-1 standards, are are RoHS compliant and have a two-year warranty.

The C/B 4800 Series of 6U DC/DC and AC/DC converter modules have been introduced by Schaefer Inc. The output power in the device ranges from 2.4W to 5kW. The C/B 4800 Series feature a very robust design and provide a high density.

The device can be used in railway controls and communications equipment, military applications, oil rigs applications, fuel cell applications, transportation and others.

The standard operation temperature is -20 degrees C to +75 degrees C. There is also an option of -40 degrees C.

All models have  protection circuitry including overvoltage, overload, short circuit protection and thermal shutdown with auto restart.