Cosel cuts height of SiC 3-phase 3.5kW AC-DC converter for 1U designs
Cosel has cut the height of its 3-phase, 3-wire 3500W AC-DC converter by 30% to fit into a 1U rack.
The HFA3500TF AC-DC converter is designed for 3-Phase Delta or 3-Phase Star networks with a wide operating input of 180VAC to 528VAC and was previously 65mm. The design is now 41mm high to fit into a 1U rack for industrial equipment such as semiconductor manufacturing, laser processing machines and robotics.
A digitally controlled switching topology and Wide Band Gap (WBG) silicon carbide semiconductor devices boosts the efficiency to 94% at 400VAC input and 65VDC output and the AC-DC converter measures 110 x 468mm [4.33 x18.43 inches].
There are options for two output voltages, 48VDC and 65VDC, these being adjustable in the range +15% to -50% using the trim function and the HFA3500TF can be connected in parallel up to ten units and deliver up to 31.5kW.
- SiC for fanless 3-phase 3.5kW power
- Cutting AC-DC parts count to boost reliability
- Industrial power supply range moves to 800kHz with GaN
The HFA3500TF addresses applications allowing fan-cooling but in the case of certain industrial applications such as welding robots, tooling machines and electrolyzers that are often required to operate in harsh environments without ventilation, the HCA3500TF has been designed for baseplate conduction cooling.
In addition to the main output, the HFA3500TF includes a 12VDC/1A auxiliary output which can be used for remote ON/OFF. The auxiliary output is isolated from the input, output, and Functional Ground.
The HFA3500TF includes inrush current limiting circuitry, overcurrent and overvoltage protection and thermal protection. Exhibiting versatility and robustness, the power supplies can be operated in an ambient temperature range of -10 to +70C temperature. Two cooling fans with automatic speed control guarantee ventilation of the unit, but depending on the final equipment assembly style and environmental conditions a derating may apply.
For system integration and to reduce conducted noise, the HFA3500TF includes an input filter and complies with the FCC Part15 class A, VCCI class A, CISPR11 class A, CISPR32 class A, EN55011-A and EN55032-A.
The HFA3500TF has an input to output isolation of 4,243VAC, input to ground (FG) of 2,829VAC and output to ground (FG) of 2,000VAC. Complying with IEC62368-1, at its rated load and with 480VAC, 60Hz supply the leakage current is 3mA maximum.
The 48VDC output HFA3500TF-48 is suitable for a wide range of applications including measurement and analysis equipment, machine tools, and semiconductor manufacturing equipment required to sustain sag immunity conditions such as specified by the SEMI F47 standard. The 65VDC model HFA3500TF-65 is ideal for powering Radio Frequency Power Amplifiers (RFPA), as well for 60V Lithium-Ion batteries chargers.
The HFA3500TF complies with safety requirements UL62368-1, EN62368-1, C-UL (equivalent to CAN/CSA-C22.2 No.62368-1), with the RoHS and Low Voltage directives and carries the CE mark and UKCA.
www.coseleurope.eu/Products/AC-DC/HFA
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