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1pcs 9A 300W DC-DC Buck Converter, 5-40v to 1.2-35v Power Supply Module, 65*47*23mm

Module properties: non-isolated constant current constant voltage (CC CV) step-down charging moduleScope of application: high-power LED constant current drive, lithium battery charging (including ferroelectric), battery charging 4V, 6V, 12V, 14V, 24V battery, nickel-cadmium nickel-hydrogen battery charging (battery), solar panels, wind turbines.Input voltage: 7-32V (without constant current 5-32V)Output voltage: (1) continuously adjustable (0.8-28V) (2) Fixed output (0.8-28V to choose from), please inform the merchant when purchasing. (Temporarily only for batch customers, all samples will be sent with adjustable models) (3) If you need higher voltage, please contact me directly Output current: maximum 12A (please add a fan to dissipate heat if the power tube temperature exceeds 65 degrees, 24V to 12V within 6A, generally no fan can be used in open environment)Constant current range: 0.2-12A (adjustable) (without constant current, this function is not available). Flasher current: constant current value * (0.1), flasher current is related to the constant current value , for example, the constant current value is 3A, and the flasher current is set to 0.1 times the constant current (0.1*3A=0.3A). When the constant current value is When the value of the current is adjusted to 2A, the flashing current is 0.1 times the constant current (0.1*2A=0.2A). The minor version is set to 0.1 times (the actual flasher current is an approximate and not very precise value), which is used to indicate whether the load is full.Minimum voltage drop: 1VOutput power: the maximum power is about 300W. If the power tube temperature exceeds 65 degrees, please add a fan.Conversion efficiency: up to about 95% (the higher the output voltage, the higher the efficiency)Working frequency: 300KHZ Output ripple: 20M bandwidth (for reference only) 24V input, 12V 5A output, ripple about 50mV (excluding noise) Operating temperature: industrial grade (-40℃ to +85℃) ( please pay attention to the temperature of the power tube in actual use, if the temperature is too high, please strengthen the heat dissipation) No-load current: typical 20mA (24V to 12V)Charging regulation: ±1% (constant voltage)Voltage regulation rate: ±1%Constant current accuracy and temperature: During actual testing, the temperature on the module increased from 25 degrees to 60 degrees, and the constant current value changed less than 5% (constant current value 5A). Dynamic response speed: 5% 200uPotentiometer adjustment direction: clockwise (increase), counterclockwise (decrease).The potentiometer close to the input is the voltage adjustment ( CV) and the potentiometer near the output is the current setting (CC). Indicator light: two-color indicator light, the charging indicator light is red, the charging completed indicator light is green (no load is connected, the indicator light is green ), the indicator without constant current is red.Output short circuit protection: yes, constant current (currently set constant current value)Input reverse polarity protection: none,Output backflow prevention: None.Wiring method: terminal blockNote: The data are all manually measured, please allow 1-3cm error, due to the difference in light and display, there will be a certain color difference , the actual item received shall prevail.

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1pcs 9A 300W DC-DC Buck Converter, 5-40v to 1.2-35v Power Supply Module, 654723mm

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