November 15, 2019
TDK Corporation (TSE 6762) announced the introduction of the 2000W rated QM8B series of AC-DC power supplies with the capability of providing up to 18 outputs. This further extends the QM modular power supply series to now cover 550W to 2000W. Like all the models in the QM series, the QM8B features low acoustic noise and full MoPPs isolation. With both medical and industrial safety certifications, the QM8B addresses a wide range of applications, including BF rated medical equipment, test and measurement, broadcast, communications and renewable energy.
Accepting a wide range 90-264Vac 47-440Hz input, the QM8B can deliver 1500W output power or 2000W with a high line input of 180-264Vac. Available output voltages range from 2.8V to 105.6V and up to eight single or dual modules can be fitted. Optional standby/signal modules can be specified with a choice of one or two standby voltages (5V, 12V and 13.5V at up to 2A), a PMBus™ communication interface and unit inhibit or unit enable, and an AC Good signal.
The units can operate in ambient temperatures of -20°C to +70°C, derating output power and output current by 2.5% per °C above 50°C. Overall case dimensions are a compact 200 x 63.3 x 268mm (W x H x D), and the weight is between 2.3 to 3.4kg, depending on the module configuration.
The QM series operating efficiency is up to 91%, reducing internal heat losses, allowing the use of low speed, low audible noise fans for cooling. This provides an enhanced patient/user experience and increased reliability. The QM series is covered by a seven-year warranty.
The QM series is certified to IEC/EN/UL/CSA 60601-1, ANSI/AAMI ES 60601-1, IEC/EN 61010-1, IEC/EN/UL/CSA 60950-1 and IEC/EN/UL/CSA 62368-1 with CE marking for the Low Voltage, EMC and RoHS Directives. With an input to output isolation of 4,000Vac (2 x MoPPs), 1.500Vac input to ground (1 x MoPP) and 1,500Vac (1 x MoPP) output to ground, the series can be used in BF rated medical equipment. The QM8B has a maximum earth leakage current of 300µA, while still complying with the EN61000-6-3:2007 and EN60601-1-2:2015 (curve B conducted and radiated) emission standards. The units also meet the EN60601-1-2 and EN61000-6-2 immunity standards.
Product selection is made simple with an online configurator, giving an optimised module selection with a choice of signals, leakage current and standby voltages. Upon entering up to 18 output voltages and currents, the configurator will automatically produce a unique 7-digit code for easy order placement and quick delivery.
- Input AC Voltage: 90-264Vac
- Operating frequency: 47 to 63Hz
- Output Voltage: 2.8V to 105.6V
- Can deliver 1500W-2000W output power
- Ambient temperatures of -20°C to +70°C
- Derating output power and output current by 2.5% per °C above 50°C
- Compact case dimensions of 200 x 63.3 x 268mm (W x H x D), and Weighs between 2.3 to 3.4kg
- Operating efficiency is up to 91%
- Input to output isolation of 4,000Vac (2 x MoPPs), 1.500Vac input to ground (1 x MoPP) and 1,500Vac (1 x MoPP) output to ground.
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