5A Constant Voltage Current Step Down Power Supply Module With USB Charging Power Bank Conversion Board COD

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1. On-board voltage, current, and power meter can easily use this module without a multimeter, which is simpler and more intuitive. 2. Onboard USB interface for easy charging of your digital products. (Note: The USB output voltage is the same as the module output voltage. It is not a fixed 5V output. Please confirm before charging the USB device.) 3. High power, high efficiency, 5A, low ripple; 4. Three major functions: (1) Used as a normal step-down module with overcurrent protection capability; (2) Used as a charger for various voltage lithium batteries, batteries, nickel-cadmium nickel-hydrogen batteries (battery packs), for solar panels, wind turbines, etc.; (3) used as a high power LED constant current drive module; 5. There are two modes of constant voltage and constant current, and there are indicators to indicate which mode the module is currently in; 6. When used as a lithium battery charger, you can set the float voltage and charge current, and the indicator light indicates whether it is charging or is full; 7. With current limiting protection, the module will not burn out even if the output is shorted. 8. The onboard voltage and ammeter can be self-calibrated. 9. With heat sink and copper column.

Parameter:  
Application range:   1. Use as a normal buck module with overcurrent protection       2. Use as a battery charger           3. As LED constant current drive module
(1) Determine the operating current and high operating voltage that you need to drive the LEDs; (2) Under no-load conditions, adjust the digital meter to the [display output voltage] interface, adjust the "constant piezoelectric positioner" to make the output voltage reach the LED working voltage; (3) Adjust the digital meter to the [display output current] interface, and directly short the output end of the module (find a thick wire to short the output end), then adjust the "constant current potentiometer" to make the digital meter The current value reaches a preset LED operating current; (4) Connect the LED and test the machine.





1 x Heat sink