Power Electronics / Power Management


250 W quarter-brick converter

29 May 2019 Power Electronics / Power Management

GAIA Converter has expanded its range of high-power quarter-brick DC-DC converters with the addition of a 250 W output module. The MGDI-254 series is designed for use in distributed power architecture where variable input voltage and transients are prevalent, making them ideal particularly for transportation, railways or high-end industrial applications.

These modules use a high-frequency fixed switching topology at 330 kHz, providing high reliability, low noise characteristics and high power density. The standard models feature a wide input voltage range of 9 - 36 V and transients up to 40 V for 100 ms. The single output features an output trim range of 80% to 110% of nominal, and also includes a sense function.

All modules feature internal LC network filters that minimise reflected input current ripple and output voltage ripple, thus reducing the external filter components and further reducing the bill of materials and real estate. Safety features include input under-voltage lock-out, output over-voltage and over-current protection, and over-temperature protection. Additionally a soft-start function eliminates inrush current during start-up. No optocouplers are used, ensuring high reliability.

The devices are potted with a bi-component thermal conductive compound and use an insulated metallic substrate to ensure optimum power dissipation under harsh environmental conditions.

For more information contact Tobie Muller, Accutronics, +27 11 782 8728, tmuller@accutronics.co.za, www.accutronics.co.za



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

DC-DC converters for railway applications
29 January 2020, Conical Technologies , Power Electronics / Power Management
Traco Power announced the release of the latest addition to its railway series converters. The THN 10WIR series is a family of ruggedised 10 Watt DC-DC converters for the highest reliability in harsh ...

Read more...
Highly robust IGBT gate driver
29 January 2020 , Power Electronics / Power Management
Power Integrations announced the launch of its automotive-qualified SID1181KQ SCALE-iDriver gate driver for 750 V-rated IGBTs. The new part expands the company’s range of auto-qualified driver ICs, following ...

Read more...
Power management/UPS HAT for Raspberry Pi
29 January 2020, iCorp Technologies , Power Electronics / Power Management
This Raspberry Pi power management and UPS HAT, made by Sixfab, ensures that the device is powered up and that the user has full control over its power supply. The uninterruptible power supply automatically ...

Read more...
Brushless DC motor driver
29 January 2020, NuVision Electronics , Power Electronics / Power Management
The MP6650 from Monolithic Power Systems is a single-phase, brushless DC motor driver with integrated power MOSFETs and a Hall-effect sensor. The device drives single-phase brushless DC fan motors with ...

Read more...
4-switch buck-boost controller
29 January 2020, Altron Arrow , Power Electronics / Power Management
A common DC-DC converter problem is generating a regulated voltage when the input voltage can be above, below, or equal to the output - that is, the converter must perform both step-up and step-down functions. ...

Read more...
CCM/DCM flyback ideal diode
29 January 2020, NuVision Electronics , Power Electronics / Power Management
The MP9989, made by Monolothic Power Systems, is a fast turn-off, intelligent rectifier for flyback converters that integrates a 100 V MOSFET. It can replace a diode rectifier for higher efficiency and ...

Read more...
Low-noise electronic circuitry enables low-intensity light detection
29 January 2020, Vepac Electronics , Editor's Choice, Power Electronics / Power Management
When it comes to low-intensity light detection, performance requirements often lead to selecting devices with greater sensitivity than common photodiodes or even charge coupled devices (CCDs).

Read more...
Non-isolated buck-boost converter
29 January 2020, Brabek , Power Electronics / Power Management
The recently introduced Recom RBBA3000 buck-boost, non-isolated DC-DC converter features a maximum 3 kW output power rating in an industry standard half-brick baseplate-cooled package. Input range is ...

Read more...
Isolated, regulated DC-DC modules
29 January 2020, Future Electronics , Power Electronics / Power Management
Power density, low weight and ease of use are critical considerations when designing isolated, regulated DC-DC converter systems for a broad range of robotics, UAV, rail, communications and defence/aerospace ...

Read more...
Non-inverting converters for buck or boost operation
29 January 2020, Avnet South Africa , Power Electronics / Power Management
Texas Instruments introduced a family of four high-efficiency, low-quiescent-current (IQ) buck-boost converters that feature tiny packaging with minimal external components for a small solution size. ...

Read more...