DC Automatic Boost/Buck Converter CC CV Power Module 0.5-30V 4A Adjustable Regulated power supply Voltmeter ammeter | Обустройство

•  

  LCD input and output voltage, output current output power; Input anti-reverse protection, reverse connection will not burn; Can be step-up and step-down, the output voltage 0.5-30V arbitrary regulation, limiting the current 0-4A arbitrary regulation; Output anti-intrusion, the battery charge without additional anti-reflux diodes; Button control output ON / OFF status, and you can set the power-on default is ON or OFF; Ascending and descending chip used as the main controller, external 60V 75A MOS tube as a switch, double 60V 5A SS56 Schottky rectification, 60V voltage value, superior to the market immature XL6009 / LM2577 program (a lot Device pressure value is not enough, MOS tube and Schottky diode pressure value must be greater than the input plus input voltage value); Output ripple small, LC filter; With heat sink, send module support isolation column.   Specifications: Input voltage: 5.5-30V (input voltage 5V, you can normally achieve buck-boost, but the voltage and current meter values ​​are not accurate; less than 4.7V, undervoltage protection) Output voltage: 0.5-30V Output current: long-term stable work in 3A, strengthen the heat can reach 4A Output power: 35W natural cooling, heat dissipation to enhance 50W Voltage display resolution: 0.05V Current display resolution: 0.005A Conversion efficiency: about 88% Soft-start: Yes (very powerful with load startup, startup may fail) Input reverse protection: Yes Output anti-intrusion: Yes Short circuit protection: yes Working frequency: 180KHZ Size: 6.6*4.8cm   Function Description: Module has IN / OUT, ON / OFF two buttons: IN / OUT button to switch the input voltage and output voltage display, long press to switch the output current output power display; ON / OFF button control output ON or OFF, long press Set power on default output status is ON or OFF. CC is the current setting potentiometer, clockwise rotation, can increase the set current, when the load current reaches the set current, enter the constant current state, CC constant current indicator (red) lights up; the right CV is the voltage setting Potentiometer, clockwise rotation, can increase the output voltage. ON indicator is the output status indicator, when the output voltage is on, otherwise off. How to use: Used as an ordinary buck-boost module with over-current protection capability (1) Adjust the CV constant voltage potentiometer so that the output voltage reaches the voltage you want. (2) Measure the output short-circuit current with 10A current meter (connect the two test leads directly to the output end), and adjust the CC constant current potentiometer to make the output current reach the preset over-current protection value. (For example, if the current value displayed by the multimeter is 2A, the maximum current will only reach 2A when you use the module. When the current reaches 2A, the red constant voltage and constant current LED is on, otherwise the LED is off) Caution: When using in this state, there will be a voltage drop of 0 ~ 0.2V due to the current sampling resistor at the output. At the same time, the input and output leads will have a certain linear voltage drop This is a normal phenomenon! 4.2. Used as a battery charger Without constant current function of the module can not be used to charge the battery, due to the power of the battery and the charger pressure drop is large, resulting in charging current is too large, causing damage to the battery, so the beginning of the battery to use constant Flow charging, when the charge to a certain extent automatically switch back to constant voltage charging. (1) Determine the float voltage and charging current for which you need the rechargeable battery (if the lithium battery parameter is 3.7V / 2200mAh then the float voltage is 4.2V and the maximum charging current is 1C, ie 2200mA) (2) Under no-load condition, the multimeter measures the output voltage and adjusts the constant voltage potentiometer so that the output voltage reaches the float voltage. (If the 3.7V lithium battery is charged, adjust the output voltage to 4.2V) (3) Measure the output short-circuit current with 10A current meter (directly connect the two test leads to the output terminal), and adjust the constant current potentiometer so that the output current reaches the predetermined charge current value; (4) Connect the battery, charging. (Steps 1, 2 and 3 are as follows: input termination power supply, the output is not connected to the battery load) Used as LED constant current driver module (1) Make sure you need to drive the LED operating current and the maximum operating voltage; (2) Under no-load conditions, the multimeter measures the output voltage and adjusts the constant voltage potentiometer so that the output voltage reaches the maximum operating voltage of the LED. (3) with a multimeter 10A current measurement output short-circuit current, while adjusting the constant current potentiometer so that the output current reaches the predetermined LED operating current; (4) connected to the LED, test machine. (Steps 1, 2, and 3 are as follows: Input the power and output the no-load LED.)  Note: This module is more than 3A, 35W use, please strengthen the heat! ! ! Note: Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid

As an honest seller we devote ourselves to offering best products & services. We understand sometimes you may have a problem with your purchase but whatever it is please trust that we will try out best to make you satisfied. Fair & Objective feedback is very IMPORTANT to our reputation and we'll be highly grateful if you can contact us before leaving Negative/Neutral feedback. Let's work together to solve the problem at the earliest convenience. 

DC DC Automatic Boost/Buck Converter CC CV Power Module 0.5-30V 4A Adjustable Regulated power supply Voltmeter ammeter

Shipment

1.- We can ship the products all the world.

2.- DHL FedEx TNT UPS EMS China Post are all available.

3.- The item will be sent out with 7days after receiving the payment.

4.- Please make sure your delivery address and contact telephone number are correct when you bid the item.

5.- You can track the situation of your product on website after they are shipped out.

Warranty

1.- One year guarantee.

2.- If the item is defective upon receipt it should be within 7days from the date of receipt for exchange a new one (Buyer should return all original and undamaged items under re-saleable condition).

3.- We supply free repairing service within one year of purchase. For the first 1 month we will pay one way shipping cost( from us to your location); After 1 month of purchase the buyer need to pay two ways of shipping cost.

4.- One we get the returned items we will send the replaced ones back as soon as possible.

5.- Our warranty does not extend to any products that are physically damaged or under un-normal operating conditions as a result of misuse or improper installation on the parts.

Payment

1.- Please make sure your payment account is available before you bid the item.

2.- All payments should be cleared within 7days after you receive the item. If you really have difficulty in paying the item please contact us firstly we will help to solve it.

3.- If you have any special request about the details of item please leave a note in your order.

Import Taxes or Duties

1.- Import duties taxes and other charges happened in your side are not included in the price of the item. These fees are afforded by buyer.

2.- Please check with you country?s Customs office to determine what these additional costs will be before purchase.

3.- Please confirmed detailed information about delivery invoice. For example how much price we should write on the waybill invoice or how to describe the item etc...

Feedback

1.- As your feedback is very important to our development we sincerely invite you to leave positive feedback for us if you are satisfied with our product and service. Thanks a lot for your time.

2.- Our program will leave back the same feedback to you after your positive feedback.

3.- Please contact us before you leave a neutral or negative feedback we will try our best to solve the problems.

Thank you very much for your support and you have a nice day!

How to reach us

 Camille Chen       fa9ed465f567e13d

Please feel free to drop us a message if have any questions,

And looking forward to your ORDERS!