Constant Current Buck Converter

This Constant Current Buck Converter works as a high-power constant current driver module and as a buck converter module with over-current protection.

How to set current limits:

• Adjust voltage potentiometer to make output voltage reach the voltage value which you want.
• Use 10A multimeter to measure short-circuit output current (directly connect two meters to output interface), while regulating the current potentiometer so that the output current reaches a predetermined over-current protection value. (For example, the meter displays the current value of 4A, then you can use the module to a maximum current of 4A)

LED indicator light:

• Red light is on in constant current status and off in constant voltage status.
• Blue light is on when charging and off when full charge.
• Green light is on when full-charge.

Specification:

• Frequency: 180KHz
• Weight: 25g
• Input voltage: 4-38V
• Output power: 75W(Max)
• Transfer efficiency: 96%(Max)
• Output current: adjustable; 5A(Max)
• Input reverse connection protection: NO
• Working temperature: -40 to +85 Celsius
• Output voltage: 1.25-36V constantly adjustable
• Short-circuit protection: YES(limited current of 8A)
• Over-temperature protection: YES(item will stop output automatically)