16-bit DSC allows smaller power supplies with higher switching frequencies

The Digital Signal Controllers (DSCs) from Microchip have been designed for the implementation of sophisticated nonlinear, predictive and adaptive control algorithms at higher switching frequencies. For the first time, a flash memory for live updates without interruption in running systems has been integrated.

Microchip announces the dsPIC33EP "GS" family before 14 new Digital Signal Controllers (DSCs), which are suitable for the implementation of sophisticated nonlinear, predictive and adaptive control algorithms at higher switching frequencies. These algorithms enable not only more efficient power supplies, they also have better overall specifications.

Block diagram of microcontroller family dsPIC33EP- "GS" from Microchip
Block diagram of microcontroller family dsPIC33EP- "GS" from Microchip (image: Microchip)
Higher switching frequencies allow the development in turn physically smaller power supplies with higher component density at a lower cost. Compared to the previous generation of DSCs, the new "GS" family less than half the latency when it is used in an expansion joint with three poles and three zeros, and needs regardless of the application up to 80% less power.

The dsPIC33EP- "GS" family also comes up with special properties, such as the flash memory for live updates, which is particularly important for high availability or uninterruptible systems. The firmware of a power supply and the active calculation code for the compensator can thus be replaced by live update during operation and continuous control. A short presentation, see www.microchip.com/Presentation and in our gallery.

The technical basic parameters of the new digital power design Controlle

Other key features of the family are up to five 12-bit ADCs with 22 ADC inputs. You have a total throughput of 16 mega samples per second (Msps) and an ADC latency of 300 ns.

Furthermore, 12-bit DACs available for each of the four analog comparators for designs with higher accuracy. Two programmable analog amplifier on the chip are designed for current measurement and other precision measurements and help to save external components and board space and reduce costs.