Industrial Control
▌270V high-voltage direct current power supply system
The adoption of a 270V high-voltage direct current power supply system has the advantages of high power generation efficiency, light weight of the power generation and distribution system, light weight of the power supply device for avionics equipment, high reliability, easy realization of uninterrupted power supply, and low life cycle cost. The research results show that the comprehensive performance, reliability, maintainability and weight indicators of the high-voltage direct current power supply system are the best, making it an attractive power supply system for airborne applications.
The VI600Q270NS28MNL-G power module adopts soft-switching control, a two-level topology cascading, and synchronous rectification technology. It has the advantages of small size, light weight, low noise, and high efficiency.
▌The product design is in line with
HB 20326.7-2016 Test Methods for Power Adaptability of Onboard Electrical Equipment - Part 7: Requirements for DC 270V.
▌Typical application circuit
▌VI600Q270NS28MNL-G Isolated High-Voltage DC-DC Converter
Main application
① Power supply for new airborne equipment;
② Special DC testing and power supply;
③ All other situations where a direct current power supply is required;
▌Product features
Operating voltage range | 200-400Vdc |
Output voltage adjustment range | -50% ~ +10% |
Rated output power | 600W |
Peak efficiency | 94% |
Operating temperature range | -55℃ ~ +100℃ (M temperature) |
-40℃ ~ +100℃ (T temperature) | |
Between input and output Enhance insulation | 2000Vac |
Size | 1/4 Brick 60.6*39.0*12.7mm |
Weight | 87g |
▶ Fixed-frequency PWM control ▶ No minimum load limit ▶ Negative logic enable control ▶ Output voltage compensation ▶ Input under-voltage protection / Output overcurrent protection / Output short-circuit protection / Output overvoltage protection / Over-temperature protection | |
▌VI600Q270NS28MNL-G Performance Parameters
The output voltage is set to 28V and the operating temperature is 25℃.
①Vin=200V
No-load voltage | 28.04V |
No-load loss | 9.94W |
Half-cycle voltage | 28.055V |
Full-load voltage | 28.096V |
Half-year efficiency | 94.81% |
Full-load efficiency | 94.72% |
Fully loaded with ripples | 256mV |
②Vin=270V
No-load voltage | 28.081V |
No-load loss | 11.01W |
Half-cycle voltage | 28.082V |
Full-load voltage | 28.104V |
Half-year efficiency | 93.57% |
Full-load efficiency | 93.57% |
Fully loaded with ripples | 310mV |
③Vin=400V
No-load voltage | 28.113V |
No-load loss | 13.07W |
Half-cycle voltage | 28.113V |
Full-load voltage | 28.129V |
Half-year efficiency | 91.85% |
Full-load efficiency | 92.90% |
Fully loaded with ripples | 240mV |
