Digital power supply has the characteristics of high performance and high reliability. Its design is very flexible and has been applied in many fields, such as new energy vehicle DC-DC, DC-AC, charging piles, digital generators and solar inverters. Microchip continues to introduce new, better-performing digital power products for digital power applications. The dsPIC33EP GS series products have won the favor of many digital power engineers for their professional and excellent performance.

In the application of digital variable frequency generators, the use of the high-performance PWM module ofMicrochip's professional digital power control chip dsPIC33EP GS will help designers develop products with high power density and smaller size. The dsPIC33EP GS digital power solution developed by Beyond International utilizes the dsPIC33EP GS high-resolution ADC to improve the output voltage accuracy. The optimized ADC conversion to interrupt delay time can shorten the compensation delay time and improve the dynamic response capability.

Typical application system block diagram

Features

• Efficient code ( C and assembly) architecture

• Two 40 -bit wide accumulators

• Single-cycle mixed sign multiplication and hardware division

• 32-bit multiplication support

• 1.04 ns PWM resolution (frequency, duty cycle, dead time and phase)

• Flexible trigger configuration for ADC conversion

• 12-bit resolution with 4 dedicated SAR ADC cores and 1 shared SAR ADC core

• Up to 3.25 Msps conversion rate per channel at 12-bit resolution

• Two oversampling filters for increased resolution

• High-speed comparator truncates PWM (typical value is 15 ns):

-Support cycle-by-cycle current mode control 
-Current reset mode (variable frequency)

• Support programming while working

• Support partition softswitch

Features

• Input frequency: 50HZ

• Rated output power: 1.6KW

• Output power up to: 2KW

• Output voltage: 230V AC

• Output current: 6.9A

• Protection functions: overcurrent, undervoltage, overvoltage, overtemperature, etc.

• Main features: reliable start, high efficiency, low noise

Application field

• Home backup power

• Commercial backup power

• outdoor lighting

• Industrial applications, etc.