INTEGRATED SYSTEM COMPRISING SIGNAL ANALYSYS CIRCUIT

摘要

PURPOSE: An integration system including a signal analysis circuit is provided to analyze a transfer function of a control system and to improve stability of the control system based on an analysis result. CONSTITUTION: An integration system(10) comprises a control system(100) and a signal analysis circuit(300). The control system is a general control system which includes an ODD(Optical Disk Drive) or an HDD(Hard Disk Drive) etc. A digital resonator creates a test signal by a zero order hold method. The signal analysis circuit provides the test signal having specific frequency to the control system and receives a feedback signal from the control system. The signal analysis circuit analyzes the feedback signal and analyzes a transfer function of the control system.