Beijing Sino-Hydrogen Dynamic Technology Co.,Ltd.

Product Introduction Product Parameters

As a part of the EV control system, DCL converts high-voltage battery voltage into low-voltage output under the control of the main controller, supplying power to low-voltage electrical equipment on the vehicle. The output terminal has a low-voltage battery; Require stable output voltage, high conversion efficiency, precise structure, compact size, high reliability, and protection functions such as input overvoltage and undervoltage, output overvoltage and undervoltage, output short circuit, input anti reverse connection, and overheating.

Electrical Parameters

Model	DBD030-540-24	DBD030-540-12
Input Characteristics
Rated Input Voltage	540 Vdc	540Vdc
Input Voltage	450Vdc~750 Vdc	450Vdc~750 Vdc
Full Power Input Voltage Range	375Vdc ~750Vdc	415Vdc ~750Vdc
Static Loss Current (rated input, power off)	≤2mA	≤2mA
Output Characteristic
Rated Output Voltage	27Vdc	12Vdc
Rated Output Power (continuous operation)	3KW	3KW
Efficiency (at rated input and output)	≥95%	≥96%
Start the impulse current	Not exceeding 1.5 times the maximum steady-state current;
Output Voltage Rise Time
Output voltage ripple (peak to peak value)
Boot Time	≤3s
Voltage stabilization accuracy	±1%
Voltage stabilization accuracy	±1%
Static loss current	2mA (Leakage current when the input is not connected to high voltage or 14Vdc control power, and the output is connected to the battery)
Dynamic response voltage overshoot amplitude	±3% (25%~50%~25% or 50%~75%~50% load variation, load variation rate ≤ 0.1A/us, dynamic load variation frequency 50Hz~5Hz.)
Other
Control Mode	CAN enable or EN high-level enable
Grounding	Output negative busbar grounding or shell bottom plate grounding;
Input continuous power on/off	Under the given control signal and normal output conditions, the input can meet the requirement within 1 minute

Protection function

Model	DBD030-540-24	DBD030-540-12
Output undervoltage	18-19Vdc， Self recoverable
Output overvoltage	31-32Vdc， Self recoverable
Input anti reverse connection	When the input is reversed, the power supply must not be damaged;
Over Temperature Protection	When the bottom plate temperature reaches 85 ± 5 ℃, the rated output will begin to decrease; Shut down when the temperature exceeds 95 ± 5 ℃; Below 85 ± 5 ℃, self recovering;
Output Current Limiting	Enter the constant current mode by setting the current limit value, and reduce the rating based on the actual working temperature, input voltage, and output voltage.
Output Short Circuit	Shut down; After the fault is resolved, it will self recover; Continuous short circuit for 5 times, module locked, needs to be powered on again for restoration.