
For problems of existing mine-used flameproof and intrinsically safe type power supply with multiple input voltage level such as large voltage fluctuation, heavy weight and difficult maintenance, a design scheme of mine-used power supply with super wide input voltage range was put forward. The power supply uses a combination of Buck topology and Flyback topology, and can convert super wide input voltage of AC80-900 V to a stable DC voltage. Experimental results show that the power supply has strong anti input fluctuation performance, stable output voltage, low ripple and high efficiency.
super wide input voltage range, flyback topology, Mining engineering. Metallurgy, flameproof and intrinsically safe type power supply, TN1-997, buck topology
super wide input voltage range, flyback topology, Mining engineering. Metallurgy, flameproof and intrinsically safe type power supply, TN1-997, buck topology
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