High slew-rate option for power supplies
Power supply expert Magna-Power Electronics has released a high slew-rate output option to meet the demands of fast-performance DC applications such as battery charging and photovoltaic emulation.
The option, available on the company's entire product line from 2kW to 600kW+, improves the products' slew rate and bandwidth by nearly two orders of magnitude.
With the high slew-rate option, Magna-Power Electronics power supplies' standard output stage, designed to provide low output voltage ripple, is exchanged for low-capacitance film and aluminium electrolytic capacitors and lower-loss bleed resistors.
As a result, faster voltage and current transitions can be realised: voltage slew rate down to 4ms and bandwidth up to 60Hz.
Applications for the high-slew-rate option include battery charging, photovoltaic emulation, power waveform generation, medium speed power pulsing, and laser diode powering.
All Magna-Power Electronics power supplies come standard with isolated digital and analogue programming, enabling voltage and/or current to be driven by a 0-10V analogue signal.
It is possible to superimpose waveforms or produce a medium-speed pulse on top of the DC output and expect normal capacitor life.
With standard models available up to 4,000VDC and currents up to 24,000ADC, the new option is said to enable high performance at the cost and size of switched-mode power processing.
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