Switching Power Supply Design with the PIC16F785
In spite of the component’s strengths, adding a microcontroller to a SMPS design still usually means adding one or more devices to an already crowded PCB. The new PIC16F785, however, actually reduces the number of devices in a design by including not only the necessary interface peripherals for a SMPS design, but also two channels of analog PWM, two voltage comparators, and two op amps. In this application note, we will examine a typical buck topology intelligent SMPS design using the PIC16F785.
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