SYNTHETIC RIPPLE GENERATOR FOR LOW POWER HYSTERETIC BUCK-BOOST DC-DC CONTROLLER

摘要

The present embodiments relate generally to power controllers, and more particularly to synthetic current hysteretic control of a buck-boost DC-DC controller. In one or more embodiments, a controller includes PFM-PWM and Buck-Boost transitions with minimal circuitry and power consumption. In these and other embodiments, the controller includes a low-Iq synthetic ripple generator for use in implementing hysteretic control of a buck-boost controller.