5A constant voltage constant current step-down module with voltage and current power display LED drive lithium battery charging With Case
Description:
LM358 is a dual operational amplifier. It includes two independent, high gain, and internal frequency compensation operational amplifiers. It is suitable for power supply with a wide range of power supply. It is also applicable to dual power mode. Under the recommended working conditions, the power current is independent of the power supply voltage.
The DC voltage gain is high (about 100dB).
The unit gain bandwidth is wide (about 1Mhz).
Pressure pendulum rate (0.3V/us).
Features:
1. With crystal case, safe, practical, convenient and beautiful.
2. On-board voltage, current and power meter, you can easily use this module without a multimeter, which is simpler and more intuitive.
3. Onboard USB interface makes it easy to charge 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.)
4. High power, high efficiency, 5A, low ripple;
5. 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;
6. There are two modes of constant voltage and constant current, and there are indicators to indicate which mode the module is currently in;
7. 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 already full;
8. With current limiting protection, the module will not burn out even if the output is shorted.
9. The onboard voltage and ammeter can be self-calibrated to avoid inaccurate voltmeter readings!
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