Power Electronics
A fuel cell is a power generation device that directly converts the chemical energy of fuel and oxidant into electrical energy through an electrochemical reaction. Theoretically, fuel cells can operate with a thermal efficiency approaching 100%, and they have high economic efficiency. Due to the wide range of voltages that fuel cells convert into electricity, it is difficult for ordinary power modules to cover their operating voltage range.
Its input voltage range can reach 9 - 90V, and it can supply power to batteries or loads with operating voltages ranging from 0 to 90V. The VN2000 can achieve a conversion efficiency of up to 97% and a power of 2000W in half-brick configuration. Moreover, it can be expanded in parallel to achieve higher power applications.
▌VN2000 Typical Application Circuit
▌VN2000 Non-isolated DC-DC Converter
Input | 9-90V |
Output | 0 - 90V adjustable continuously |
Rated current | 26A |
Eff. | 97% |
Size | 60.6*63.2*12.7mm |
▶ Industrial standard pin package, capable of replacing competing products in situ ▶ Built-in current equalization function ▶ Constant voltage and constant current output (the output voltage and current can be controlled by external resistors or external voltages) | |
▌Performance Parameter Comparison of VN2000 vs. Competitors
①When Vout = 55V and Vin = 30V
VN2000 | Competitor product | |
No-load voltage | 54.808V | 55.027V |
Full-load voltage | 54.787V | 54.880V |
Full-load efficiency | 94.8% | 95.9% |
Fully loaded with waves | 84mV | 110mV |
Flow-limiting point | / | / |
②When Vout = 55V and Vin = 50V
VN2000 | Competitor product | |
No-load voltage | 54.794V | 55.058V |
Full-load voltage | 54.768V | 54.734V |
Full-load efficiency | 96.7% | 96.3% |
Fully loaded with waves | 96mV | 130mV |
Flow-limiting point | 30A | 29.4A |
③When Vout = 55V and Vin = 90V
VN2000 | Competitor product | |
No-load voltage | 54.786V | 55.035V |
Full-load voltage | 54.775V | 54.760V |
Full-load efficiency | 96.3% | 95.8% |
Fully loaded with waves | 60mV | 120mV |
Flow-limiting point | 30A | 29.0A |
