Low-Altitude Economy Power Supply-Shenzhen VAPEL Power Supply Technology Co.,Ltd.

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Fuel Cell Power Supply for Drones

This power supply converts the dynamic voltage output from the fuel cell stack into a stable voltage suitable for system power modules. It continuously delivers the energy generated by the fuel cell stack to the power battery and electrical appliances in a stable and uninterrupted manner, according to real-time demand. The power supply features output short-circuit protection, overcurrent protection, and output overvoltage protection. It incorporates a built-in fan for heat dissipation.

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Technical Specifications

Input Characteristics
Project			Technical Requirements	Unit	Note
Input Voltage Range			60-110	Vdc	Fuel cell stack input: Can withstand continuous input power not exceeding 120 VDC without damage.
Rated Input Voltage			65	Vdc
Rated Input Current			235	A	Peak current: 300A Duration: 10 minutes
Rated Input Power			15	kW	Peak 18 kW
Input Current Control Accuracy			≤±1	%
Input Current Dynamic Response Recovery Time			≤50	ms	Output rated voltage fluctuation: 1%
Input reverse polarity protection			No output during reverse connection, no damage, recoverable after fault removal, test voltage ≤100Vdc
Input Current Adjustment Rate			Ascending rate: 100A/s Descending rate: 500A/s
54V Output Characteristics
Rated Output Voltage		54		Vdc
Rated Output Current		278		A	Vout=54V
Output Power		15		kW	Peak 18 kW
Output Voltage Range		42-58(Typical value 54)		Vdc
Output Current Range		0 - 278		A
Overall efficiency		≥95		%
Output current ripple		≤±2		%
Output ripple noise		≤±2500		mVp-p	Oscilloscope bandwidth: 20 MHz; A 0.1uF ceramic capacitor and a 10uF electrolytic capacitor must be added to the power supply output during testing.
Power-on output delay		≤300		mS	Input connection is normal to output 90% Vo
24V Output Characteristics
Rated Output Voltage		24		Vdc	No additional wake-up required. Once the input voltage meets the requirement, the target output voltage must be achieved within 1 second.
Rated Output Current		62.5		A
Output Power		1.5		KW
Output ripple noise		≤500		mVp-p	Oscilloscope bandwidth: 20 MHz; A 0.1uF ceramic capacitor and a 10uF electrolytic capacitor must be added to the power supply output during testing.
Auxiliary Power Supply Interface Output Characteristics
Auxiliary 1 Interface Output		+54V bypass, output after 63A fuse, maximum current 40A, client side connected to blower port.
Auxiliary 2 Interface Output		+54V direct pass-through, output after 15A fuse, maximum current 10A. Client side connects to hydrogen circulation pump port.
Auxiliary 3 Interface Output		+54V direct pass-through, output after 10A fuse, maximum current 5A, client side connects to pump port.
Environmental Conditions
Operating Temperature	-40	-	85	℃	Reduced performance at high temperatures between 65°C and 85°C
Storage temperature	-40	-	105	℃
Relative humidity	5	-	95	%	non-condensing
Elevation	-	2000	-	m
Heat dissipation method	Air-cooled
Protection Rating	IP20

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