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S$20.43
ZK-4KX DC Buck Boost Converter DC CV 0.5-30V 4A Power Module Adjustable Regulated Power Supply For Solar Battery Charging
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Product description
1.1 can display input/output voltage, output current/output power/output capacity/output time; 1.2 CNC adjustment, accurate and fast, can step up and down the voltage, the output voltage can be adjusted at will from 0.5-30v, the limit current 0-4a can be adjusted at will; 1.3 Input end reverse connection protection, which will not burn out; 1.4 Anti-reverse irrigation at the output end, no additional anti-reverse irrigation diode is needed to charge the battery; 1.5 The module can be set to open/close by default; 1.6 Multiple software protection devices are available, and the protection threshold is adjustable. When the module's working parameters exceed the protection threshold, the output will automatically close. 1.6 The output ripple is small, and the PI filter is available; 1.8 Thicken radiator fins?
2 product parameters Input voltage: 5.0-30v Output voltage: 0.5-30v Output Current: It can work stably at 3A for a long time, and can reach 4A with higher heat dissipation Output power: natural heat dissipation 35W, strengthen heat dissipation 50W Voltage display resolution: 0.01V Current display resolution: 0.001A Conversion efficiency: about 88% Soft start: Yes (with high power module and load may fail to start) Protection mechanism: Input anti-reverse connection; Anti-reverse irrigation outlet; Input undervoltage protection (4.8-30v adjustable, default 4.8v) Output overvoltage protection (adjustable from 0.5-31v, default 31V) Output overcurrent protection 0-4.1a (adjustable, default 4.1a) Over power protection (adjustable from 0 to 50w, default 50w) Over temperature protection (80-110° adjustable, default 110°) Timeout protection (adjustable from 0 to 100 h, disabled by default) Large capacity protection (adjustable 0-60ah, off by default) Operating frequency 180KHZ Dimensions: length * width * height 79mm * 43mm * 26mm Weight: 92g (including package)
method of use 5.1 Switch display parameters--In the normal interface, press SW to switch the display below the display, and switch the display content between Current A Power W Capacity Ah Time h. press the SW button to switch the display top link screen and switch the display content between input voltage and output voltage. 5.2 Set output voltage -- Press U/I button in normal interface to enter voltage constant current setting interface. It can be seen that a certain digit of the output voltage value flashes. Turn the encoder left and right to adjust the major and minor. press the Rotary Encoder to choose which output voltage bit to set. After setting, press the U/I button 2 times to return to the normal interface. Or automatically return to normal interface after stopping operation for 10s. 5.3 Set constant current value (that is, the maximum current value allowed to be output by the module) -- press the U/I button in the normal interface to enter the setting voltage constant current interface. Then press the U/I button and switch to setting the constant current value. You can see the constant value of the setting flicker a bit. Turn the Rotary Encoder left and right to adjust the major and minor. press the Rotary Encoder to choose which bit to set the constant current value. After setting, press U/I to exit setting voltage constant current interface and return to normal interface. Or automatically return to normal interface after stopping operation for 10s. 5.4 Set the default power on/off status of the module power-on -- long press U/I in the normal interface to enter the parameter setting interface. you can see it shows "OPEN OFF" or "OPEN ON". "Open off" means the outlet defaults to off when powered on, and "Open on" means the outlet defaults to on when powered on. Long press the rotary encoder to switch two states. After setting, press U/I to return to normal interface. 5.5 Setting protection parameters in status and threshold -- press U/I to enter the parameter setting interface in the normal interface. press SW until the protection you want appears. LUP -- Overvoltage protection threshold; OUP -- Overvoltage protection threshold; OCP -- overcurrent protection threshold; OPP -- Plus Power Protection Threshold; OAP -- ultra cap protection threshold
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