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  • XY-SEP4 DC DC 0.5-30V 4A 35W Automatic Boost/Buck Converter CC CV Regulated Adjustable Laboratory Power Supply Module
  • XY-SEP4 DC DC 0.5-30V 4A 35W Automatic Boost/Buck Converter CC CV Regulated Adjustable Laboratory Power Supply Module
  • XY-SEP4 DC DC 0.5-30V 4A 35W Automatic Boost/Buck Converter CC CV Regulated Adjustable Laboratory Power Supply Module
  • XY-SEP4 DC DC 0.5-30V 4A 35W Automatic Boost/Buck Converter CC CV Regulated Adjustable Laboratory Power Supply Module
  • XY-SEP4 DC DC 0.5-30V 4A 35W Automatic Boost/Buck Converter CC CV Regulated Adjustable Laboratory Power Supply Module
  • XY-SEP4 DC DC 0.5-30V 4A 35W Automatic Boost/Buck Converter CC CV Regulated Adjustable Laboratory Power Supply Module
  • XY-SEP4 DC DC 0.5-30V 4A 35W Automatic Boost/Buck Converter CC CV Regulated Adjustable Laboratory Power Supply Module
  • XY-SEP4 DC DC 0.5-30V 4A 35W Automatic Boost/Buck Converter CC CV Regulated Adjustable Laboratory Power Supply Module
  • XY-SEP4 DC DC 0.5-30V 4A 35W Automatic Boost/Buck Converter CC CV Regulated Adjustable Laboratory Power Supply Module
  • XY-SEP4 DC DC 0.5-30V 4A 35W Automatic Boost/Buck Converter CC CV Regulated Adjustable Laboratory Power Supply Module
XY-SEP4 DC DC 0.5-30V 4A 35W Automatic Boost/Buck Converter CC CV Regulated Adjustable Laboratory Power Supply Module

XY-SEP4 DC DC 0.5-30V 4A 35W Automatic Boost/Buck Converter CC CV Regulated Adjustable Laboratory Power Supply Module COD

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                        Product description:

                        The product LCD display has clear interface, simple operation and nearly perfect protection mechanism.
                        Hardware protection: anti-reverse connection protection at the input end, anti-reverse connection without burning; short circuit protection at the output end, anti-reverse injection protection at the output end, no anti-reverse diode is added when charging the battery;
                        Software Protection: Overvoltage Protection (OTP), Overcurrent Protection (OCP), Overpower Protection (OPP), Overtemperature Protection (OTP), Input Undervoltage Protection (LVP);
                        Full use of materials, stable performance, wide range of uses.

                        1. Product parameters:

                        Input voltage: DC5.0V-30V (less than 4.7V with under-voltage protection LVP)
                        Output voltage: DC0.5V-30V
                        Output current: 0-4.0 A
                        Output power: 35W under natural heat dissipation and 50W under air cooling
                        Voltage accuracy: ±1%+1 word, resolution: 0.01V, self-calibration
                        Current accuracy: ±1.5%+3 words, resolution: 0.001A, self-calibration
                        Conversion efficiency: about 88%.

                        Soft Start:
                        Input Reverse Connection Protection: Yes, Reverse Connection No Burning
                        Output anti-backfilling: Yes, it can be directly connected to the battery.
                        Output Short Circuit Protection: Yes, it can be directly connected to the output terminal.
                        Temperature Protection (OTP): Yes, 100 C.
                        Working frequency: 180KHZ

                        2. Key function:

                        Add key UP: Short press switch to display input/output voltage and long press to enter self-calibration interface
                        Reduce DOWN: Short-click Switch Display Current/Power/Capacity/Energy/Time
                        SET: Long Press Enter Settings Interface
                        Switch key ON/OFF: Short press on/off output; In the display voltage and current interface, long press on the set boot state (-ON: power on default opening, -OFF: power on default closing), in the capacity/energy/time interface, long press clear corresponding data.

                        3. Setting up interface operation instructions:

                        3.1. Press SET button to enter the setting interface.
                        3.2. The parameters are adjusted by UP/DOWN keys to support long press (fast increase/decrease) and short press SET keys to switch the parameters to be adjusted.
                        3.3. In the maximum capacity (OAH)/maximum energy (OPH)/maximum running time (OHP) interface, press the "ON/OFF" button to select the opening or closing of the corresponding function, and if closed, display "--";
                        3.4. In the maximum capacity (OAH)/maximum energy (OPH) parameter interface, long press the ON/OFF button to select the range of capacity (9.999Ah/99.99Ah/9999999Ah, 9.999Wh/99.999Wh/99999999Wh);
                        3.5. After setting the parameters, press the encoder potentiometer for a long time, exit the setting interface and save the parameters automatically.
                        Note: After product protection, output will be turned off, LCD will display the corresponding protection code
                        (LVP/OVP/OCP/OPP/OAH/OPH/OHP) power chip itself also has various protection, if the chip itself is protected, OEP will be displayed.

                        4. Product use method:

                        4.1. Used as a general boost-and-drop power supply with over-current protection capability
                        (1) Regulate the CV constant voltage potentiometer so that the output voltage can reach the desired voltage value.
                        (2) Short-circuit output directly (short-circuit output directly! ) The CC constant current (current limiting) potentiometer is adjusted to make the output current reach the predetermined overcurrent protection value. (For example, when the current value of the product is 3.000A, the maximum current of the product can only reach 3A, and when the current reaches 3A, the liquid crystal will display "CC" status, otherwise the liquid crystal will display "CV" status.)
                        Note: In this state of use, due to the output current sampling resistance, there will be a voltage drop of 0-0.2V after the load is connected. At the same time, when the current is high, there will be a certain voltage drop on the input and output wires. This is a normal phenomenon!
                        4.2. Use as battery charger
                        Products without constant current function can not be used to recharge batteries. Because of the great voltage difference between batteries and chargers, the charging current is too large and the batteries are damaged. So the batteries should be charged with constant current at the beginning. When the charging reaches a certain level, the batteries should be automatically switched back to constant voltage charging.
                        (1) Determine the floating charge voltage and current of the rechargeable battery you need; (If the lithium battery parameter is 3.7V/2200mAh, the floating charge voltage is 4.2V, if it is 12V rechargeable battery, the floating charge voltage is generally set to about 14V).
                        (2) Under no-load condition, adjust the constant voltage potentiometer to make the output voltage reach floating charge voltage; (If charging 3.7V lithium battery, adjust the output voltage to 4.2V only)
                        (3) Short-circuit output directly (short-circuit output directly! The CC constant current (current limiting) potentiometer is adjusted to make the output current reach the predetermined charging current value.
                        (4) Connect the battery and charge it.
                        (Steps 1, 2 and 3 are: the input end is connected with the power supply, and the output end is not connected with the battery without load)
                        4.3. Used as a constant current drive module for high power LED
                        (1) Determine the working current and maximum operating voltage of the LED you need to drive.
                        (2) Under no-load condition, the output voltage of the constant voltage potentiometer can reach the maximum working voltage of the LED by adjusting the constant voltage potentiometer.
                        (3) Short-circuit output directly (short-circuit output directly! The constant current potentiometer is adjusted to make the output current reach the predetermined LED working current.
                        (4) Connect the LED and test it.
                        (Steps 1, 2 and 3 are: input power supply, output no-load without LED lights.)

                        5. Functional Details:

                        5.1 Capacity/Energy/Running Time Statistics:
                        If the current is not 0, the statistics will be finished when the next current is 0.
                        5.2 Setting Maximum Capacity/Maximum Energy/Maximum Running Time
                        5.2.1. Set the maximum capacity (OAH)/energy (OPH): When the OAH/OPH function is activated, when the statistical capacity/energy is higher than the maximum capacity/energy set, the power supply automatically shuts down the output, and flashes "OAH"/'OPH'; after the alarm is lifted, the capacity/energy statistics are automatically cleared;
                        5.2.2. Set the maximum discharge time (OHP): When the OHP function is activated, when the power supply runs longer than the set maximum discharge time, the power supply automatically closes the output and flickers to display "OHP"; after the OHP alarm is lifted, the automatic clearing time statistics;
                        This function can realize the quantitative/timing power supply very well.
                        Note: When the functions of OAP/OPH and OHP are not turned on, the power supply will automatically record the capacity/energy and running time. When the functions of OAH/OPH and OHP are turned on, the power supply will automatically turn off and output after setting value. When the function of OHP is turned on, the running time of the power supply is countdown mode.
                        5.3 Data Group Functions:
                        Divided into "DAT0" and "DAT1"
                        DAT0: Show the capacity/energy value and running time of the previous stage only by flickering, and do not accumulate to the next stage.
                        DAT1: Scintillation shows the capacity/energy value and running time of the previous stage, and automatically accumulates to the next stage.
                        Note: If one point of calibration is not accurate enough, more points can be calibrated.

                        6. Notes:

                        6.1. Module input VIN-prohibit short connection with output OUT-otherwise constant current function will fail.
                        6.2. Make sure that the power of the power supply is always greater than the power required by the output load!
                        6.3. If the module wants to output at full load, the input voltage should be more than 8V. When the input voltage is 5V, the output power is about 15W. The maximum current value of the module is 4A, provided that the maximum output power is limited, such as 18V, and the current should be no more than 2A.
                        6.4. Module has input undervoltage protection function, default is about 4.7V, below this value, will automatically disconnect the output, when the voltage is higher than 4.7V, will automatically restore the output (Note: 4.7V is the voltage at the product port, when the input current is relatively large, do not ignore the partial voltage on the input wire)

                        Package included:

                        1 x XY-SEP4 DC DC 0.5-30V 4A 35W Automatic Boost/Buck Converter





















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                        (2) Business days do not include Saturday/Sunday and any public holidays.
                        (3) These estimates are based on normal circumstances and are not a guarantee of delivery times.
                        (4) We are not responsible for the failures or delays in delivery resulting from any force majeure event, such as natural disaster, bad weather, war, customs issues, and any other event beyond our direct control.
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                        *We currently offer COD payments for Saudi Arabia, United Arab Emirates, Kuwait, Oman, Bahrain, Qatar, Thailand, Singapore, Malaysia, Philippines, Indonesia, Viet Nam, India. We will send a confirmation code to your mobile phone to verify that your contact details are correct. Please ensure you follow all the instructions contained in the message.
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                        This warranty and return policy are only available for the sub categories of Arduino Compatible SCM & DIY Kits, 3D Printer & Supplies, Electronic Accessories & Gadgets.

                        Within 180 days

                        If there are any product quality problems which are not caused by artificial factors such as dis-assembly, misuse, drops or falls, water damage, unofficial firmwares, software modifications or any others causes of damage, we will cover the return shipping fees based on the shipping receipt you will provide only if these charges are worth less than US$40. 

                        If the damage is related to the screen, this situation should not be considered to be included in the scope of this warranty.

                        If the damage is caused by you, and isn't related to any product quality problem, you're still able to send it back for repairing. However, you are responsible for paying the return shipping fees and the repair fees. If there any further costs occur during the return or repair process, we will ask you to take responsibility for those as well.

                        We will send you a bill showing all the charges we have to pay before sending it back to you.

                        After 180 days from shipment

                        All warranty requests will be rejected after 180 days from shipment.(3D printers and ebook readers have a warranty term of 1 year)

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                        If the product (except for DIY kits) has arrived broken, please contact us within 3 days from the day you received it and then follow the 3 Days Product Guarantee.

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                        If you are not satisfied with your purchase, you can return it within 3 days from its delivery date to receive a refund of your purchase minus the shipping fees or an exchange. You will have to pay the shipping fees both ways if the reason is not related to our mistake. Please ensure to return the item with its original packaging and in the same conditions in which you received it.

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                        Your 3D Printer still works correctly:

                        There are lots of parts included in the package. If any parts have arrived damaged, please contact us to resend you those parts. If you're able to buy them in your country, please let us know and we will refund you the cost.

                        Your 3D Printer isn't working correctly:

                        Within the first year after purchasing, we offer free maintenance in case of quality problems (except for damage caused by incorrect use of the device. Please note that in case the damage is caused by using the machine, freight for repairing the device is required.

                        If quality problems occur within 45 days after receiving it, it is possible to get you a new machine.

                        If you dislike the item, you're free to send it back within 3 days after receiving it for a refund. You will be responsible for the shipping costs, and need to ensure that the returned product isn't damaged in any single way, and includes all original items in good condition.

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                        If your e-reader is not working correctly, please send us the following info:

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                        Within one year of free maintenance of quality problems (except for screen damage), except for personal damage (such as personal damage maintenance is required to bear the freight).

                        Products with quality problems declared to us within 45 days after delivery can be exchanged for a new device (except cases of personal damage and any screen related problem).

                        Screen damage is considered as personal damage. Customers are responsible for the maintenance (screen change) fee and bear the freight.

                        As e-readers are high value products, it is recommended that customers have a certain knowledge about the use of e-raders. If this product isn't what you expected, feel free to send it back to us according to the terms written down in the 'Unsatisfied with product' section above.

                        Notes:

                        • 1. Please read the descriptions carefully and clearly before purchasing. If the descriptions are not clear enough, please feel free to contact us.
                        • 2. This category (Arduino SCM & 3D Printer Acc) includes many DIY kits, and we can not assist you completely in case the damage is caused by incorrect welding, construction, or any other circuit issues.
                        • 3. If you find the product is damaged, please do not disassemble it yourself (such as e-books, programmers, signal logic analyzers and other pre-built items), since this may affect your return request.

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