BUCK CONVERTER ENHANCING RESPONSE CHARACTERISTIC

摘要

PURPOSE: A buck converter improving response characteristics is provided to improve response characteristics of output voltage by increasing a crossover frequency of buck converter using a compensating circuit. CONSTITUTION: A clock control part(10) applies a clock signal according to a control signal as an input signal. A control signal increases switching frequency using the change of output voltage. The above-mentioned applied input signal is charged or discharged through a filter (20). A compensation part(30) increases crossover frequency showing the spot in which the converter gain becomes 0. A buck converter(500) improves the response characteristics and noise reduction effect of output voltage at the same time through the clock control part and the compensation part. [Reference numerals] (10) Clock control part; (20) Charge/discharge; (30) Compensation part; (AA) Input voltage; (BB) Output voltage