Speaker
Niels Heidbrook
(DESY)
Description
Less ADCs than order of the system -> Passive damping is better than getting stability by means of the regulation.
Input: Constant Load Current -> constant input power -> negative input resistance of the power supply -> ringing on the intermediate DC power bus -> introduction of passive damping on the input
Output: Oscillation of the output filter and the load -> passive damping on the output
Delta-Sigma-ADCs -> static precision is ‘no problem’ -> AC precision is today’s problem -> mains synchronous ripple suppression (i.e. 50Hz, 300Hz, 600Hz) -> prefilters -> arbitrary pre-oscillator
ADC values -> Add a standard header to the ADC values to create standard audio files -> Use standard audio freeware for wave and frequency analysis
