Description

The new upgrade, 5A step-down constant voltage constant current module, for the battery, lithium battery charging, with a turn light control, easy to observe the state of charge. Can be used as high-power LED driver module, with PWM control input interface and switch machine control interface, easy to use single-chip control drive current. The new upgrade of the module, the current regulator more stable, shipped with a heat sink!  Module parameters: Module Name: 5A step-down constant voltage constant current  Module Properties:Non-Isolated Buck Module (BUCK) Input voltage:4.5-30V The output voltage:0.8-30V continuously adjustable,(The default output is 5V, please refer to dispensers for other voltage.) 0.8-30V fixed output (please note to the treasurer of the required voltage) The default shipment is an adjustable output Output constant current range:0.1-5A(The default output constant current of 3A, for other current value, please note to the treasurer) Output to lamp range:0.1-5A(The default turn-on current of 0.3A, for other current values please note to the treasurer) The current range can vary slightly due to part parameters Operating temperature:-40 to +85 degrees working frequency:300KHz PWM control Frequency range:100-300Hz Conversion efficiency:Up to 95% (efficiency and input and output voltage, current, pressure-related) Short circuit protection:Yes (limit current is the set constant current value) Over-temperature protection:(After over-temperature automatic shutdown output) Input Reverse Protection:No, (if necessary, string in the input diode) Output anti-back protection:(There are reserved anti-flooding diode position, you can add their own methods. See below) Charge indication:Red light when charging, full green light. Turns on the lamp examination way is the electric current. Installation method:4 3mm screws Wiring:Wiring terminal (with shell when the wire output)V-IN for the input, V-OUT for the output Module size:Length 60 mm width 26 mm height 20 mm The module's current detection for the low-end detection, please do not input the negative and negative output directly with wires shorted. Applications: 1, DIY a regulated power supply, with constant current function, not afraid to use the process will be short-circuit, you can protect the load. 2, for your electronic equipment power supply. 3, for a variety of battery charging, according to the different voltage and capacity of the battery charge voltage and charge current settings, with charging instructions to facilitate observation of the state of charge. 4, with solar panels for a variety of battery power supply, with constant current function, to prevent the battery overcharge, the effective protection of the battery. 5, driving high-power LED, free-string-parallel combination, with PWM control input, available single-chip control LED brightness (PWM control frequency range 100-300Hz). 6, as a car power supply for your mobile phone or a variety of digital products.  Physical photo: Set the voltage, current and turn the light method: (see above) 1, set the output voltage:Adjust the constant voltage potentiometer (CV) according to the float voltage of the battery you want to charge, or the voltage value of the LED in series and parallel, and set the output voltage to the required voltage. (Not connected to the load case) 2, to set the lamp current indication:Set the output voltage, the CC potentiometer counterclockwise to adjust 20 or so, with a multimeter current profile 20A short-circuit output, adjust the CC potentiometer to the current you need to turn the lights, and then adjust the light electric potentiometer (LED), adjust To just bright green light so far. 3, set the constant current value:After adjusting the turn-on lamp current,Multimeter 20A current is still short-circuit output CC-potentiometer to the current value you need to set. Note: Constant current setting voltage is higher than 0.8V, otherwise the constant current function will be invalid. Increased anti-flooding diode method:The tin box on the diagram box to remove, in place with the anti-diode diodes can be added (5A Schottky diodes).