60W 6A adjustable buck-boost power module(Constant voltage and constant current liquid crystal display)
โมดูลเรกูเลตแปลงไฟขึ้น/ลง buck-boost 5.5-30V เป็น 0.5-30V 60W 6A พร้อมจอแสดงผล LCD โวลต์และแอมป์
พร้อมวงจรป้องกัน : over current protection, over power protection, over temperature protection.
อุปกรณ์เฉพาะโมดูลเรกูเลต ไม่รวมแหล่งจ่ายไฟ แหล่งจ่ายไฟแนะนำที่ 15-24V กระแสที่ 2-5A
รายละเอียดสินค้า
The power adapter is not included in the delivery, and the power adapter must be purchased separately. It is recommended to use an adapter with a voltage of 15~24V / a current of 2~5A. If the output power is large, choose a high-power adapter and insert the DC port of the module to convert it into a desktop power supply.
Note: The shell is delivered as a DIY kit, which needs to be assembled by the customer, and the operation is simple. There is a protective film on the outer layer of the acrylic shell and the LCD screen, please tear off the film before assembling, the product will be more translucent.
1. Product Hilight
- The long-handled potentiometer can adjust the voltage and current, which can be operated with bare hands without using a knife.
- With large-volume heat sink, with shell, optional with fan.
- LCD display input, output voltage, temperature, output current and output power.
- Hardware protection: The input terminal is protected against reverse connection, and the reverse connection will not burn; the output terminal is anti-backflow, and there is no need to add an anti-backflow diode when charging the battery;
- Software protection: over current protection, over power protection, over temperature protection.
- Voltage can be stepped up or stepped down, the output voltage can be adjusted arbitrarily from 0.5-30V, and the current limit can be adjusted arbitrarily;
- The button controls the ON/OFF status of the output terminal, and you can set the power-on default to ON or OFF.
- LC filter, small output ripple;
2. Product parameters:
Input voltage: 5.5 -30V (when the input voltage is 5V, the voltage and current can also be boosted and lowered, but the voltage and current measurement is not accurate; when it is lower than 4.7V, undervoltage protection )
- Output voltage: 0.5-30V
- Output current: The fanless version can work stably at 4 A for a long time , and the fan version can reach 6A
- Output power: 35W without fan, 60W with fan
- Voltage display resolution: 0.01V, accuracy error 1%
- Current display resolution: 0.001A, accuracy error 1%
- Conversion efficiency: about 88%
- Soft start: Yes (it may fail when the module with high power load is started)
- Input reverse connection protection: Yes, no burn if reverse connection
- Backflow prevention at the output: Yes, it can be directly connected to the battery
- Short circuit protection: Yes, can be directly connected to the output terminal
- Temperature protection: 100℃
- Power protection: 60W
- Overcurrent protection: 6A
- Working frequency: 180KHZ
- Fan rotation conditions: current is greater than 3A, or power is greater than 20 watts, or temperature is greater than 40°C.
- Size: fanless version length * width * height 72*59*32mm
- Version with fan length * width * height 72*59*43mm
- Mounting hole: 3mm in diameter
- Weight: 81g without fan
- With fan version 107g
3. Function description:
- The module has two buttons: IN/OUT and ON/OFF: short press the IN/OUT button to switch the input voltage, output voltage and module temperature display, long press to switch the output current and output power display; short press the ON/OFF button to control the output ON or OFF, long press to set the default output state of the next power-on to ON or OFF.
- The left CC is the current setting potentiometer. Turn clockwise to increase the set current. When the load current reaches the set current, it enters the constant current state, and the CC constant current indicator (red) lights up; the right CV is the voltage Set the potentiometer and turn it clockwise to increase the output voltage. The ON indicator light is an output status indicator light. It is on when there is voltage at the output terminal, otherwise it is off.
4. How to use:
4.1. Use as an ordinary buck-boost module with over-current protection capability
- (1) Adjust the CV constant voltage potentiometer to make the output voltage reach the voltage value you want.
- (2) Directly short-circuit the output terminal with a short wire (the output terminal can be short-circuited directly!) Adjust the CC constant current potentiometer to make the output current reach the predetermined overcurrent protection value. (For example, the current value displayed by the module is 2A, then the maximum current when you use the module can only reach 2A, when the current reaches 2A, the red constant voltage constant current indicator light is on, otherwise the indicator light is off)
- Note: When used in this state, due to the current sampling resistor at the output terminal, there will be a 0~0.2V voltage drop after the load is connected. At the same time, when the current is large, the input wire and output wire will have a certain line voltage drop. , This is normal!
4.2. Use as a battery charger
The module without constant current function cannot be used to charge the battery. Because the voltage difference between the exhausted battery and the charger is very large, the charging current is too large and the battery is damaged. Therefore, the battery must be used at the beginning. Current charging, when the charging reaches a certain level, it will automatically switch back to constant voltage charging.
- Determine the floating voltage and charging current of the rechargeable battery you need; (If the lithium battery parameter is 3.7V/2200mAh, then the floating voltage is 4.2V, and the maximum charging current is 1C, which is 2200mA)
- Under no-load conditions , Adjust the constant voltage potentiometer to make the output voltage reach the float voltage; (if charging the 3.7V lithium battery, adjust the output voltage to 4.2V)
- Short-circuit the output terminal directly with a short wire (the output terminal can be short-circuited directly! ), adjust the CC constant current potentiometer to make the output current reach the predetermined charging current value;
- Connect the battery and charge.
(Steps 1, 2, and 3 are: the input terminal is connected to the power supply, and the output terminal is not connected to the battery without load)
4.3. Use as a high-power LED constant current drive module
- Determine the operating current and maximum operating voltage you need to drive the LED;
- Under no-load conditions, adjust the constant voltage potentiometer to make the output voltage reach the highest LED working voltage;
- Directly short-circuit the output terminal with a short wire (the output terminal can be short-circuited directly!), and adjust the constant current potentiometer to make the output current reach the predetermined LED working current;
- Connect the LED and test the machine.
- (Steps 1, 2, and 3 are: the input is connected to the power supply, and the output is no-load without the LED light.)
5. Schematic diagram of shell assembly
6. Matters needing attention:
- Module input IN- must not be short-circuited with output OUT-, otherwise the constant current function will fail.
- Please ensure that the power of the power supply is always greater than the power required by the output load!
- If the module wants to output at full load, the input voltage must be above 8V. When the input voltage is 5V, the output power is about 15W, and the volt-ampere meter fails. The maximum current value of the module is 4A, provided that it is limited by the maximum output power, for example, when the output is 17V, the current should not exceed 2A.
- The module has output short-circuit protection. After the short-circuit protection, the module will automatically turn off the output and re-power on the module to recover. If your power supply does not have output current limiting protection, it is recommended to connect a fuse in series in front of the module input to improve the safety factor.
- The module has an input under-voltage protection function. The default is about 4.7V. When the value is lower than this value, the output will be automatically disconnected, and the module can be restored by powering on again (note the voltage at the module port, when the input current is relatively large Don’t ignore the partial voltage on the input wire).