5A Constant Voltage Current Step Down Power Supply Module With USB Charging Power Bank Conversion Board

5A Constant Voltage Current Step Down Power Supply Module With USB Charging Power Bank Conversion Board

Name: 5A Constant Voltage Current Step Down Power Supply Module With USB Charging Power Bank Conversion Board
Brand: Elecbee
SKU: EB0045026
Price: 10.99 USD
Availability: InStock
Rating: 138 / 29 (29 reviews)

$10.99

SKU: EB0045026

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5A Constant Voltage Current Step Down Power Supply Module With USB Charging Power Bank Conversion Board

EB0045026

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Description

1 x Power Supply Module
1 x Heat sink
4 x Copper column

5A-Constant-Voltage-Current-Step-Down-Power-Supply-Module-With-USB-Charging-Power-Bank-Conversion-Bo-1600546

Input voltage: 5-36V

Output voltage: 1.25-32V continuously adjustable

Output current: adjustable, large 5A (recommended for use within 4.5A)

Output power: large 75W (recommended to use within 50W, please reduce power when using large differential pressure)

Working temperature: -40~+85 degrees

Working frequency: 180KHz

Conversion efficiency: 96% higher

Short circuit protection: Yes

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

Module size: 68.2 x 38.8 x 15mm (length x width x height)

Weight: 39g

Application range:

1. Use as a normal buck module with overcurrent protection

Instructions:

(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 shorted to the output end), adjust the "constant current potentiometer" to make the digital meter The current value reaches the preset overcurrent protection value; (such as the current value displayed by the onboard ammeter is 4A, then the module's large current is limited to 4A, and the red indicator light is on 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 the voltage difference between the battery and the charger that consumes electricity is too large, the charging current is too large, causing damage to the battery. Therefore, the battery should be used at the beginning. Stream charging, when the charging reaches a certain level, it automatically switches back to constant voltage charging.

Instructions:

(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 large 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. As LED constant current drive module

(1) Determine the operating current and high operating voltage that 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;

(4) Connect the LED and test the machine.
(Steps 1, 2, and 3 are: input power supply, output no load is not connected to LED light)

Reviews (29)
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Q & A

: Where is the origin of Elecbee products? Are they certificated?

2023-03-03

Answer:

Elecbee has long-term cooperation agreements with the OEM factories in China. So that we are able to reduce the intermediate channel cost, and help you save money. Our products are all made strictly according to the relative global standard, to ensure the products have good compatibility and excellent quality.

2023-03-03

: What forms of payment do you accept?

2023-03-03

Answer:

Our main payment methods include Paypal, Credit Cards, Debit Cards, Bank Transfer, and more to discover. Please choose the payment methods in your favor.

2023-03-03

: When will you arrange shipment?

2023-03-03

Answer:

After confirming receipt of your payment. We will arrange the delivery as soon as possible and upload the courier number to the website for you to track.

2023-03-03

: How to exchange or return?

2023-03-03

Answer:

1. You can apply to return within 30 days after receipt of the goods. Please make sure the outside package is intact, and the product is in its original condition. We will arrange your refund according to the relevant provisions once the package is received.

2. Return process: You Apply for a Return - Approve the Return - Arrange a Return - Receive the Products and make Inspection - We arrange a Refund;

3. We will bear the freight charges for returns caused by us, for instance, the quality problem. As to returns caused by the buyer, the buyer should be responsible for the shipping fee.

2023-03-03