Systems and methods for real-time signal samples in the power conversion system

The present invention discloses a system and method for real-time signal samples of the power conversion system. System and method for adjusting a power conversion system. One example of a signal processing system comprises a controller and drive components. Signal processing component is configured to receive the output signal of the power conversion system is associated with a feedback signal, and generates a processed signal based on at least information associated with the feedback signal. The drive assembly is configured to at least based on the processed information signal to generate a drive signal associated with the drive signal and outputs to the switch in order to affect a primary current through the primary winding of the drive signal and the power conversion system demagnetization process demagnetization period corresponding associated. The signal processing component is further configured to: repeatedly sampling and holding said feedback signal to generate a plurality of sample and hold signal during the period of demagnetization.