Microchip has a number of new 16-bit dsPIC Digital Signal Controllers (DSCs) for common, multi-drop switch mode power supplies (SMPSs) and other power conversion applications.

The dsPIC33F GS series digital-power DSCs enable digital control loops with four to eight high-speed, 1ns resolution PWMs, up to four 20ns comparators, each with an integrated digital-to-analogue converter (DAC) and one or two 10-bit, on-chip ADCs, providing 2 to 4 million samples per second for low latency and high-resolution control.

They range from 18 to 44 pins and 6 to 18kbyte flash memory, and are pin-to-pin compatible with Microchip’s initial digital power DSC family.

Ten modes of PWM operation are supported, including standard, complementary, push-pull, variable-phase and centre-aligned.

Application examples include AC/DC power supplies, Power Factor Correction (PFC), DC/DC converters, UPSs and power inverters. 

The devices are supported by a Buck/Boost Converter PICtail Plus daughter board. 

More information: www.microchip.com/SMPS