high precision DC DC Buck Converter CC CV Power Module 1-24V 3A Adjustable Regulated power supply capacity Voltmeter ammeter

high precision DC DC Buck Converter CC CV Power Module 1-24V 3A Adjustable Regulated power supply capacity Voltmeter ammeter

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Our shop sells the most popular 3C consumer electronics products,such as mobile phone accessories,computer accessories,game peripherals,smart wearables,and follow the most popular fashion trends. If you like our products,please follow us,become our follower and fan.We will provide you with the most popular products to satisfy your fashion shopping experience.is_customized : YesModel Number : ZK-J3XCurrent Type : DCPhase : OtherBrand Name : TKXECOrigin : Mainland ChinaPre-sales notice! ! ! The output voltage range of the USB port can be adjusted from 1 to 24V, not absolutely 5V. Before connecting to the USB device, it must be verified. Therefore, we do not guarantee the loss. The shipment includes the acrylic heat sink copper column screws and other accessories, which need to be assembled by ourselves. It is a DC-to-DC step-down module. It cannot be input to the AC current directly depressurized by the transformer. This is a step-down module. The input voltage must be higher than the output voltage by 2V. If the output voltage cannot be adjusted, it may be because the potentiometer rotates at a higher position. For the input voltage, you can adjust the output voltage by turning the CV potentiometer counterclockwise for twenty laps.1.Highlights1.1. Easy adjustment, voltage and current adjustment for long handle knob, no tools; 1.2. High precision calibration, self-calibration of input and output voltage output current, voltage accuracy of 0.01V, current accuracy of 0.001A.1.3. All kinds of protection, anti-reverse connection, no burning, anti-backflow can be directly connected to the battery, do not worry about battery down-burning module, no need for another series of diodes, over-current protection output short-circuit does not burn, rechargeable battery current limit safety;1.4. With DC5.5 input port, with USB adjustable voltage output interface;1.5. Five kinds of including capacity display, input and output voltage display, output current display, power display, capacity display;1.6. The output ripple is very small and the output is LC filtered.2. Product 2.1. Input voltage: 5-27V (the input voltage needs to be higher than the output voltage 2V. If you want to output 5V, the input voltage should be above 7V; if the output voltage cannot be adjusted, it may be because the potentiometer rotates above the input. Voltage, you can adjust the CV potentiometer counterclockwise twenty times to see the output voltage change)2.2. Output voltage: 1-24V (output voltage is higher than 24.5V, automatically turn off the output, display OV, after lowering the output voltage, press ONOFF button to solve)2.3. Output current: The highest output is about 3A. It is recommended to use in 2.5A. When the heat is large, you need to solve the heat dissipation problem. In constant voltage mode, the output current is adaptive according to the load size, and it is not adjustable. (Adjustable limit current is about 3A, output current exceeds 3A, automatic shutdown output, display OC, reduce load current, press ONOFF button to solve)2.4. Output power: less than 30W (when the output power is greater than 30W, the output is automatically turned off, the OP is displayed, after the load power is reduced, press the ONOFF button to solve)2.5. Voltage display: resolution 0.01V, factory accuracy ± 0.1V or so (can be corrected by yourself)2.6. Current display: resolution 0.001A, range 0-3A, factory accuracy ±0.05A; display error is larger when the output current is less than 0.05A, small current within 10-40mA can not be displayed (calibration when the output current is greater than 1A, more acurrate)2.7. Capacity display: resolution 0.001Ah, range 99.99Ah (can be long pressed '-' to clear, automatically save after power failure, automatically accumulate after power-on. Saturate after reaching 99.99Ah, need to be manually cleared)2.8. Conversion efficiency: less than 95%2.9. Working current: about 30mA2.10. Input reverse connection protection: Yes2.11. Output anti-backflow: Yes, it can be directly connected to the battery for charging, no need to add diodes (there is a 1K ohm equivalent dummy load inside the module output. After the end of charging, the battery will lose battery power. Mind this, please The output is connected in series with a diode)2.12. Short circuit protection: Yes2.13. Dimensions: length * width * height 73.4mm * 55.54mm * 30.5mm2.14. Weight: 67.8g (including accessories, accessories weight 41.5g)3. Function description3.1. Button"+" button: long press – enter or exit the accuracy correction interface; short press – the current correction value needs to be increased by one unit;"-" button: long press – clear the capacity count value; short press – the current correction value needs to be reduced by one unit;"SELECT" button: long press – switch between current, power and capacity display; short press – switch between input voltage and output voltage display;"ON/OFF" button: Long press – set the power-on default output to be off or on; short press – control the output to be turned on or off.3.2. Potentiometer knobOn the left side is the current adjustment potentiometer CC, which rotates clockwise to increase the set current. When the load current reaches the set current, it enters the constant current state (note that the potentiometer can increase the output current, under constant pressure). , the output current depends only on the load and is based on the load);On the right side is the voltage adjustment potentiometer CV, clockwise rotation, can increase the output voltage (this is a buck module, the input voltage should be higher than the output voltage 2V, if the output voltage can not be adjusted, you first adjust the CV potentiometer counterclockwise ).3.3. IndicatorsCC--constant current indicator light, bright when constant current (red);Full--The battery is full of indicator light (green). If the constant current value is set to 2A, the lamp will turn when the charging current reaches 0.2A or less. The Full indicator will light and the Charge indicator will be off.Charge - battery charging indicator (blue);ON - output status indicator (green);3.4. Input and output portsInput - left side, DC 5.5mm socket or 5.08mm terminal as input;Output - right side, USB port or 5.08mm terminal as output, can also be output at the same time (special attention!!! The voltage of the USB port is not absolute 5V, and the terminal is directly connected, the adjustable range is 1-24V)4. Accuracy calibration methodInput voltage calibration - long press the "+" button to enter the SET interface, the current display is the input IN voltage, short press the "+" or "-" button to adjust, long press the "+" button to exit the SET interface;Output voltage calibration - press and hold the "+" key to enter the SET interface. The current display is the input IN voltage. Press the "SELECT" button to switch to the OUT voltage. Short press the "+" or "-" button to adjust. Press the "+" button to exit the SET interface;Output current calibration - press and hold the "+" key to enter the SET interface. The current display is the input IN voltage. Press the "SELECT" button to switch to the OUT voltage. Press the "SELECT" button again to switch to the display output current interface. After pressing the "+" or "-" button to adjust, press and hold the "+" button to exit the SET interface. Note: The calibration is more accurate when the current is greater than 1A; the display error is large when the output current is less than 0.05A, and may not be displayed when the output current is less than 10-40mA.5. Notes5.1. Module input IN-disable and output OUT-short, otherwise the constant current function will be invalid.5.2. Please ensure that the power of the power supply is greater than the power required by the output load. Please reduce the power usage when the module is hot!5.3. Please read the product description carefully before using it. Damage caused by improper use will not be compensated.


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