Product Description
Adjustable Power Supply Module DC-DC CC CV Buck Converter Step-down Power Module


Adjustable Power Supply Module DC-DC CC CV Buck Converter Step-down Power Module 7-32V To 0.8-28V 12A 300W

Features:
1. Fixed turn lamp current is 0.1 times the current value ( Used to identify whether the battery is fully charged When charging).
2. Made from a dedicated benchmark for IC and high-precision current sensing resistor, proving a more stable constant current, (when 20° to 100° constant current 1A, temperature drift less than 1%). Particularly suitable for LED driver.
3. High output current, the max output current can reach 12A.
4. Four high frequency capacitance, can lower output ripple, enhance the work stabilization.
Applications:
1. High-power LED driver
2. Lithium battery(or lead accumulator) charge
3. Vehicle-mounted power supply
4. Low voltage system power supply
5. 6V, 12V, 14V, 24V battery charge
Battery charge:
1. Make sure of the battery float voltage and charging current that you need, as well as the input voltage of the module.
2. Adjust the constant voltage potentiometer and adjust the output voltage to about 5V.
3.Use the multimeter in 10A current scale to measure output short-circuit current, and adjust the current potentiometer to make the output current to the expected charging current value.
4. Adjust the constant voltage potentiometer to make the output voltage reaches the float voltage.
5. Connected to the battery, try to charge.
(1,2,3,4 steps to connect the power module input,output no-load does not connect battery.)

LED constant current drive
1. Make sure the operating current and Max operating Voltage of the LED you need to drive.
2. Adjust the constant voltage potentiometer, adjust the output voltage to about 5V.
3. Use the multimeter in 10A current scale to measure output short-circuit current, and adjust the current potentiometer to make sure the output current to the expected LED operating current.
4. Adjust the constant voltage potentiometer to make the output voltage reach the maximum LED operating voltage.
5. Connect LED, test.
(1,2,3,4 steps to connect the power module input, output No-load does not connect LED.)


Specifications:
1. Module Properties: non-isolated step-down constant current, constant voltage module (CC CV) charging module
2. Input voltage: DC 7-32V
3. Output voltage:DC 0.8-28V continuously adjustable
4. Output Current: 9A 12A (when power tube\'s temperature exceeds 65 degrees, please add cooling fan)
5. Constant current range: 0.2-12A ( adjustable )
6. Turn lamp current: constant current value * ( 0.1 ) , turn the lamp current and constant value linkage, such as constant current value is 3A, turn the lamp current is set to a constant current is 0.1 times (0.1 * 3A = 0.3A).
7. Lowest pressure: 1V
8. Output Power: Maximum power is about 300W
9. Conversion efficiency: up to about 95%
10. Operating frequency: 300KHZ
11. Output ripple: 20M bandwidth
12. Input 24V Output 12V 5A ripple around 50mV (Excluding noise)
13. Output short circuit for protection : Yes, constant current
14. Input Reverse Polarity for Protection: None
15. Output prevent backflow: None
16. Wiring: Terminal
17. No-load current: Typical 20mA (24V switch 12V)
18. Load regulation: ± 1% ( constant )
19. Voltage regulation: ± 1%
20. Dynamic response speed: 5% 200uS
21. Potentiometer adjustment direction: clockwise (increase) , counterclockwise (decrease). the potentiometer(CV) closed to the input voltage is used to regulate voltage, the potentiometer(CC) closed to output voltage is used to regulate current (CC)
22. Operating temperature: Industrial grade (-40 °c to +85 °c) ( please note the actual use of the power tube temperature , high temperature heat strengthened please )
23. Indicator: dual color indicator, charging indicator light is red, the green light means fully charged ( No load is green )
24. Size(approx): 65 x 47 x 22mm(L x W x H)


Package Included:
1 Pcs DC Buck Converter Module


If you have any questions, please feel free to contact us via ebay. We usually respond within 24 hours.


We accept all verified payments from ebay.

Orders will be shipped after receiving cleared payment.

Payment due within 7 days after auction ends and for buy it now listings.

We ship most of our orders within 24 hours, and may up to 48 hours for.

If you want faster shipping way. Please contact us before making payment.

Sometimes due to problems with our transportation company system, your shipping information may be delayed to update. We recommend that you try again after 3-4 days. If you still haven't checked the shipping information, you can contact us by ebay message.

Always believe we can figure things out with communication, if it comes to return, the pacakge must be intact and the same as you receive.

If  you have any questions, please feel free to email our service  specialists 24 Hours a Day, 7 Days a Week. We will reply you ASAP.

Return/refund  is accepted within 30 days after the buyer receives the item. NO exchange will be accepted after 30 days from the date when the item is  received.

Please contact us first before returning your product!!!



If you have any questions, our Customer Service staffs welcome you to email us. We strive to answer all questions and resolve any problems as quickly as possible.

You can contact us 7*24, we will reply at the first time, and we will surely solve your problems.

Note:

1.We try our best to reply to your emails as soon as possible, however, due to high volume of daily incoming emails and time zone difference, we may not be able to reply your emails immediately. Please allow 1 business days for us to response. If you do not receive any reply from us, please check your email ensuring your mailbox has not reached full size.

2.Due to some ISP SPAM filter settings, you may not be able to receive our replies; if you have problems receiving our emails, you may need to use a different email account to contact us.

3.Please give us the opportunity to resolve any problem. We understand the concerns and frustrations you might have, and will try our best to resolve the issues. Please email us before leaving any negative feedback or open any dispute on PayPal.

4.We care about our valued customers, and will always try to help you. So if you have any problems, please e-mail us immediately.



Payment

We accept all verified payments from ebay.

Orders will be shipped after receiving cleared payment.

Payment due within 7 days after auction ends and for buy it now listings.

Shipping

We ship most of our orders within 24 hours, and may up to 48 hours for.

If you want faster shipping way. Please contact us before making payment.

Sometimes due to problems with our transportation company system, your shipping information may be delayed to update. We recommend that you try again after 3-4 days. If you still haven't checked the shipping information, you can contact us by ebay message.

Returns

Always believe we can figure things out with communication, if it comes to return, the pacakge must be intact and the same as you receive.

If  you have any questions, please feel free to email our service  specialists 24 Hours a Day, 7 Days a Week. We will reply you ASAP.

Return/refund  is accepted within 30 days after the buyer receives the item. NO exchange will be accepted after 30 days from the date when the item is  received.

Please contact us first before returning your product!!!



Contact Us

If you have any questions, our Customer Service staffs welcome you to email us. We strive to answer all questions and resolve any problems as quickly as possible.

You can contact us 7*24, we will reply at the first time, and we will surely solve your problems.

Note:

1.We try our best to reply to your emails as soon as possible, however, due to high volume of daily incoming emails and time zone difference, we may not be able to reply your emails immediately. Please allow 1 business days for us to response. If you do not receive any reply from us, please check your email ensuring your mailbox has not reached full size.

2.Due to some ISP SPAM filter settings, you may not be able to receive our replies; if you have problems receiving our emails, you may need to use a different email account to contact us.

3.Please give us the opportunity to resolve any problem. We understand the concerns and frustrations you might have, and will try our best to resolve the issues. Please email us before leaving any negative feedback or open any dispute on PayPal.

4.We care about our valued customers, and will always try to help you. So if you have any problems, please e-mail us immediately.



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