Zk-4kx DC-DC Step-Down Booster DC อุปกรณ์ควบคุมแรงดันไฟฟ้าสามารถปรับได้

1. Baby highlights: 1.1 LCD can display input/output voltage, output current/output power/output capacity/output time; 1.2. Numerical control adjustment, precise and fast, can be boosted or stepped down, output voltage 0.5-30V can be adjusted arbitrarily, limit current 0-4A can be adjusted arbitrarily; 1.3. The input terminal is protected against reverse connection, and the reverse connection will not burn; 1.4. Anti-backflow at the output, no need to add anti-backflow diode when charging the battery; 1.5. The module can be set to turn on/off by default; 1.6. Have a variety of software protection mechanisms, and the protection threshold is adjustable. After the module's operating parameters exceed the protection threshold, the output is automatically turned off. 1.6. The output ripple is small, with π-type filtering; 1.8. Thicken the heat sink. 2. Product parameters Input voltage: 5.0-30V Output voltage: 0.5-30V Output current: can work stably at 3A for a long time, and can reach 4A with enhanced heat dissipation Output power: natural heat dissipation 35W, enhanced heat dissipation 50W Voltage display resolution: 0.01V Current display resolution: 0.001A Conversion efficiency: about 88% Soft start: Yes (it may fail when the module with high power load is started) protection mechanism: Input anti-reverse connection; Output anti-backflow; Input undervoltage protection (4.8-30V adjustable, default 4.8V) Output overvoltage protection (0.5-31V adjustable, default 31V) Output overcurrent protection (0 -4.1A adjustable, default 4.1A) Output over power protection (0 -50W adjustable, default 50W) Over temperature protection (80-110℃ adjustable, default 110℃) Timeout protection (0 -100h adjustable, closed by default) Over-capacity protection (0 -60Ah adjustable, closed by default) Working frequency: 180KHZ Size: length * width * height 79mm*43mm*26mm Note: After the product triggers the protection mechanism, the output is automatically turned off, the LCD screen displays the protection code, press any key to exit the protection interface. Precautions: 7.1. Module input IN- must not be short-circuited with output OUT-, otherwise the constant current function will be invalid. 7.2. Please ensure that the power of the power supply is always greater than the power required by the output load! 7.3. 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. 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 be greater than 2A. 7.4. Please strengthen heat dissipation when this module is used over 3A and 35W! ! ! 7.5. The module has an input under-voltage protection function, the default is about 4.8V (can be set), when the value is lower than this value, it will automatically cut off the output (note that the voltage at the module port is lower than the under-voltage protection threshold, when the input current is compared When it is large, don’t ignore the partial pressure on the input wire) PS: If you will not use the product, contact customer service for instructions