Digital control of switch-mode power supplies (SMPSs) is becoming practical thanks to the evolution of low-cost, high-performance devices with peripherals designed for power-conversion applications.

implements the integrator function of the sigma-delta function with an external capacitor, C INT. When you set RA3 of the 8-bit microcontroller high, the voltage at V CINT increases. This situation ...

(Editor's Note: There are links to the previous parts of this series at the end, below the author's biography.) Determining if one voltage is greater than or less than another voltage is the job for a ...