QPO-1 Output Ripple Attenuation SiP

The QPO-1 output ripple Attenuator SiP uses active filtering to reduce power supply output ripple and noise (PARD) over 30 dB from 1 kHz to 500 kHz. The QPO-1 operates over a voltage range from 3 to 30 Vdc and supports load currents as high as 10 A. Output regulation is maintained using remote sensing or the trim input of the power supply. The QPO-1 architecture improves transient response and ensures quiet point-of-load regulation. The QPO-1 reduces the required number of output capacitors to support dynamic loads and will work with most DC-DC Converters and switching power supplies. The scope photo in Figure 2 is an example of the ripple reduction and transient load improvement provided by the QPO-1. By Vicor Corp.
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QPO1L Application circuits
QPO1L circuits
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