14 November 2018
Power Electronics / Power Management
TDK announced the introduction of the GXE600 series of 600 W rated AC-DC power supplies, certified to the IEC 60601-1 medical safety standard as well as IEC 62368-1. In a 1U high package, these convection cooled products have the ability to be digitally programmed across a wide range using an RS-485 interface (Modbus RTU protocol) or with a 0 – 6 V external voltage. Target applications are medical, industrial and test equipment requiring quiet operation, fanless cooling and constant voltage, constant current programmability.
The GXE600 series can be operated as a 24 V or 48 V fixed output supply, or programmed to provide a constant voltage, constant current (CVCC) source. The voltage adjustment range is from 20% to 120% and the current from 20% to 100%. Protection and recovery parameters can be set, as can the rise time slew rate. Via the digital communications interface, the power supplies can also indicate the estimated remaining electrolytic capacitor lifetime, operating runtime and alarm history to enable remote preventative maintenance indication or fault finding.
The power supplies operate from a wide-range input of 85 to 265 V a.c. with an earth leakage current of less than 300 μA and dual input fuses as standard. They can be used in ambient temperatures of -20°C to +70°C (-40°C startup), derating linearly above 50°C to 50% load at 70°C. Derating or external cooling is required below 170 V a.c. input.
The fully featured series also has an isolated 5 V / 1 A standby voltage, remote on/off, DC good and AC fail isolated signals, with paralleling capability for up to five units. The case dimensions are a compact 127 x 41 x 254 mm (W x H x L). The warranty period is seven years.
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