switch mode DC power supply 1.low noise&ripple 2.High accuracy, precision and stability 3.well protecion 4.ISO9001-2000 switch mode DC power supply FeaturesSmall volume, light weightPWM modulation, for lower consumed power, higher efficiency and electricity save.Well-designed electronic circuit, forced air-cooled heat treatment, with a very low temperature coefficient.Low noise, low ripple.High- ...