Constant Voltage Constant Current Step Down Module with LED Display Battery Charging Board DC 5-36V
$19.67
Shipping:Standard Shipping about 10-25 business days
Secure Payment:Paypal,VISA,MasterCard
Features
1, On-board voltage, current and power meter. This module can be easily used without a multimeter, which is simpler and more intuitive.
2, On-board USB interface, can easily charge 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) It is used as a charger for various voltage value lithium batteries, batteries, nickel-cadmium nickel-hydrogen batteries (battery packs), and used in solar panels, wind turbines, etc.;
(3) Used as a high power LED constant current driving module;
5, With constant voltage and constant current two modes, 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 the charge current. There are indicators to indicate whether it is charging is already full;
7, With current limit protection, even if the output is short circuit will not burn the module.
8, On-board voltage, ammeter can be self-calibrated, there will never be inaccurate problems!
Specifics
Input Voltage:DC 5V To 36V (digital tube correctly displays power supply above 6.7V)
Output Voltage:1.25-32V continuously adjustable (input voltage needs to be 1.5V higher than the output voltage)
Output Current:adjustable, up to 5A (recommended for use within 4.5A)
Output Power:up to 75W (recommended to use within 50W, please reduce power when using large differential pressure)
Working Temperature:-40~+85 degrees
Working Frequency:180KHz
Conversion Efficiency:up to 96%
Is Short Circuit Protection:Yes
Is Over Temperature Protection:Yes (automatically turn off the output after over temperature)
Input Reverse Connection Protection:None, (If necessary, please input a large current diode in the input string)
Installation Method:4 3mm silk
Wiring Method:Terminal block or soldering terminal, V-IN is input, V-OUT is output.
Application range
1. Use as a normal buck module with overcurrent protection
(1) Press the right button to adjust the digital meter to the [Display Output Voltage] interface, and adjust the “Constant Piezo Transistor” to make the output voltage reach the desired voltage value;
(2) Adjust the digital meter to the [display output current] interface, directly short the output end of the module (find a thick wire to short the output end), adjust the ‘constant current potentiometer’ to make the digital meter The current value reaches the preset overcurrent protection value; (for example, if the current value displayed by the onboard ammeter is 4A, then the maximum current of the module is limited to 4A, and the red indicator light is bright when the current reaches 4A)
(3) Connect the load and work.
2. Use as a battery charger
Modules without constant current function cannot be used to charge the battery. Because of the large voltage difference between the battery and the charger.
Causes the charging current to be too large, causing damage to the battery, so start charging the battery with constant current when charging
Automatically switch back to constant voltage charging to a certain extent.
(1) Determine the float voltage and charge current of the battery; (if the lithium battery parameter is 3.7V/2200mAh, then the float voltage is 4.2V, and the maximum charge current is 1C, ie 2200mA)
(2) Under no-load conditions, adjust the digital meter of the module to the [display output voltage] interface, and adjust the ‘constant piezoelectric positioner’ to make the output voltage reach the float 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 charging current value;
(4) The charging lamp current defaults to 0.1 times the charging current; (the battery is gradually reduced during the charging process, gradually changing from constant current charging to constant voltage charging, if the charging current is set to 1A, then when When the charging current is less than 0.1A, the blue light is off, the green light is on, and the battery is charged.
(5) Connect the battery and charge it. (Steps 1, 2, 3, and 4 are:input terminal is connected to the power supply, and the output terminal is not connected to the battery.)
3. Use as LED constant current drive module
(1) Determine the operating current and maximum operating voltage at which 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.
(Steps 1, 2, and 3 are:input is connected to the power supply, and the output is not connected to the LED light)
Precautions
1. Do not share the input ground and output ground of the module. This will cause the module current sampling resistor to bypass, so that the module can not adjust the output current. It is easy to burn the module when the load is connected.
2. The output of the module has a current sampling resistor. After the load is connected, there will be a voltage drop of 0~0.2V, which is normal.
3. When the module output voltage cannot be adjusted, please turn the potentiometer counterclockwise for more than 10 turns, then use the module to adjust the voltage normally.
4. When the output exceeds 3A or 35W, please strengthen the heat dissipation!
Package Included
1 x Step Down Module
Weight | 0.075 kg |
---|
Customers Also Viewed
5pcs TS-300B Turbidity Sensor Detection Module Water Quality Tester Washing Machine Turbidity Transduce
$43.93Sensor & Detector ModuleAdd to cartPrincipleTurbidity sensor TS-300B measures the turbidity (counter of suspended matter) in the wash water. Based on the optical principle, the sensor uses the light-emitting diode and phototransistor to receive the specific wavelength to measure the opacity or other substances of dirty water. concentration. By using phototransistors and light-emitting diodes, the light emitted by the sensor …
3Pcs USB Fan Speed Controller Module Reducing Noise Multi-stall Adjustment Governor DC 4-12V
$20.74Motor PWM Speed ControllerAdd to cartFeatures– USB Fan Air Conditioner – Strong winds and weak wind adjust freely – Stepless Speed Regulation – Suitable for the very common 5.0V USB fan on the market Regulation PrincipleThe non-adjustable fan is a 5V direct fan motor,while the two-stall fan is the interior has a step-up circuit board,when placed in the second gear,the …
5pcs JDY-08 BLE bluetooth 4.0 Serial Port Wireless Module Low Power Master-slave Support Airsync i Beacon
$45.12Smart ModuleAdd to cartFeaturesJDY-08 transparent transmission module is based on bluetooth 4.0 protocol standard, working frequency range is 2.4GHZ range, modulation mode is GFSK, large transmission power is 0db, large transmission distance is 80 meters, TICC2541 chip design is adopted, and users can modify device name by AT command. , service UUID, transmit power, pairing password and other …
ADC Module ADS1100 for Analog Signal Capture Converter Compatible M5StickC ESP32 Mini IoT Development Board Fi
$14.74Converter BoardAdd to cartnull Description ADC_HAT is another type of C-HAT specifically design for M5StickC controller. Same as ADC unit, this is an ADC converter component for stickc. Packed with an ADC converter chip ADS1100, which is a fully differential, 16-bit, self-calibrating, A/D converter. Extremely easy to design with and configure, the ADS1100 allows you to obtain precise …
5pcs Mini MP1584EN DC-DC BUCK Adjustable Step Down Module 4.5V-28V input 0.8V-20V Output
$8.94Power Supply ModuleAdd to cartSpecificationsModel:MP1584Name:DC-DC step-down moduleInput Voltage:4.5V ~ 28VOutput voltage:0.8V ~ 20VOutput Current:3A (Max)Conversion efficiency:96% (maximum)Output RippleSwitching frequency:1.5MHz (highest) typically 1MHzOperating Temperature:-45°C ~ +85°CSize:22mm * 17mm (L * W )Application areas:DIY mobile power, monitor power supply, power buggies, camera power supply, car power, communications equipment supply,etc.Packge included5 x Step Down Module
LILYGO TTGO T-Koala ESP32 WiFi and bluetooth Module 4MB Development Board Based on ESP32-WROOM-32 Micro USB
$26.23Smart ModuleAdd to cartFeatureEspressif official ESP32-WROOM-32 moduleLatest ESP32 version:REV14MB FLASHLithium battery interface, 500mA maximum charging currentCompatible with , MicroPythonDefault firmware:latest MicroPythoTechnical specificationsMicrocontroller:ESP-32Board power supply:(USB) 5VSupport battery:Lipo Battery 3.7VWorking voltage:3.3VFlash:4 MbytesLength:78 mmWidth:27 mmWeight:7.8 gramsPackage includes1 x ESP32 WiFi&bluetooth Broad2 x Pin
Reviews
There are no reviews yet.