Step Down Voltage & Current with Display Power Supply Module:
Specifications:
Input Voltage: 5-30V
Output Voltage: 1-29V
Output Current: Adjustable maximum 5A (3A for long use)
Load Regulation: ± 0.5%
Output Ripple: 50mV (max) 20M bandwidth
Accuracy Efficiency: Up to 95%
Switching Frequency: 300KHz
Rectification: asynchronous rectification
Size: 51 x 27 x 15mm
Application:
1. Use as a step-down modules with overcurrent protection capabilities:
-Adjust the voltage potentiometer so that the output voltage reaches the value you want.
-Adjust the current potentiometer so that the output current reaches a predetermined overcurrent protection value. (For example, the meter displays the current value of 3A, then you can use the module to a maximum current of 3A)
-Connect Input voltage. Short circuit output to set the output current.
2. Use as a battery charger:
-Determine the battery float voltage and charging current; (if lithium parameters 3.7V/2200mAh, then the float voltage is 4.2V, the maximum charging current 1C, ie 2200mA)
-Adjust the Voltage potentiometer so that the output voltage reaches the float voltage; (if to 3.7V rechargeable lithium battery, the output voltage can be adjusted to 4.2V)
Adjust the current potentiometer so that the output current reaches a predetermined Charging current value.
-While charging, the battery current is gradually reduced, if the charge current setting is 1A, then when the charge current is less than 0.1A, Charging led light is turned off, the Charged led light is on, which means that the battery is fully charged)
3. Use as a LED constant current driver module:
-Adjust the voltage potentiometer so that the output voltage reaches the value you want.
-Adjust the current potentiometer so that the output current reaches a predetermined LED operating current.
-Connect LED, work
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