Texas Instruments Incorporated
DC-DC CONVERTERS WITH LOOP CONTROL

Abstract:

A converter system (100) includes a switch (102) adapted to be coupled to a switching terminal (104). The switch (102) is configured to generate a switching signal having first and second states at the switching terminal (104). Ripple generating circuitry (122) is adapted to be coupled to the switching terminal (104) and is configured to: generate a filtered signal based on the switching signal; and keep the filtered signal within a particular range. Loop control circuitry (116) is coupled to the ripple generating circuitry (122) and is configured to control the switch (102) based on the filtered signal.