12v 20a Power Supply

 

 

 

 

The appearance is stylish and textured, and the outer shell is made of fireproof and dustproof ABS+PC fabric, allowing you to store and use it with peace of mind and prevent fire caused by excessive temperature

 

 

 

 

 

The DC head uses a new metal interface, which is anti-oxidation and corrosion-resistant. The interface is tightly wrapped and has been tested for tens of thousands of times, making it strong and durable.

 

 

 

 

Wide range of product applications:Our products are mainly used in beauty and healthcare, home appliances, monitoring and security, LED lights with LED screens, power tools, communication equipment, etc

Step1:Confirm the output current and voltage of the power adapter
 

Step2:Confirm AC plug specifications

Step3:Confirm DC head specifications

Step4:Confirm the cord length of the power adapter

Step5:production process: SMT →PCB board plug-in → QC testing of the board → Wave soldering → Reflow soldering → Initial testing → Assembly → Full load aging testing → Full function testing → Packaging → QA inspection → Finished product storage.
                                               

Step6:packaging method

Customer ordering instructions:
1. Power adapter related parameters
How many V does the input voltage need to be? (Generally 100V-240V meets the voltage standards of various countries and is common in many countries)
2. How many V does the output voltage need to be? (3-48V)
3. How many A does the output power need to be? (0.1-15A)
4. Safety regulations require UL, FCC, PSE, KC, SAA, GS, 3C, ROHS, CE, BS and other signal-to-noise ratio standards (db), operating temperature standards (-20-65℃)
5. Power adapter use countries: China/Europe/USA/Japan/Australia/Korea/UK, etc.

Instructions for use:
1. Please read the product specification carefully before use, refer to the power label, and confirm that the input grid voltage is within the specified range;
2. AC input current calculation formula: Input current = output power ÷ input voltage ÷ input power factor ÷ power efficiency;
3. Do not open the power cover or disassemble the power supply to prevent electric shock or damage to the product;
4. For personal safety and to reduce interference, please confirm that the safety ground wire is reliably grounded;
5. To increase the life of the power supply, please keep the distance between the power supply and the heat dissipation equipment during installation;
6. When the technician tests the switching power supply, the method is to use an oscilloscope with a bandwidth of 20MHZ. To avoid the influence of external radiation and interference, please remove the grounding clip of the probe during testing, connect the grounding ring of the probe to the ground wire of the power supply output, and connect the probe to the output voltage terminal of the power supply.

After-sales guarantee:
1. Within 7 days of receiving the product, if there is any quality problem, our company is responsible for return and exchange;
2. The warranty period is 3 years. During this period, any normal damage (not caused by human factors) will be repaired free of charge by our company;
3. If it exceeds the warranty period or abnormal damage, our company will charge a certain repair fee.

Maintenance skills:
The maintenance of the switching power supply can be divided into two steps:
"Look, smell, ask, and measure" during power outages.

Look: Open the power supply shell, check whether the fuse is blown, and then observe the internal situation of the power supply. If there is a burnt area or broken component on the power supply PCB board, the components here and related circuit components should be checked.
Smell: Smell whether there is a burnt smell inside the power supply, and check whether there are burnt components.
Ask: During the power supply damage process, whether any illegal operations have been performed on the power supply.
Measurement: Use a multimeter to measure the voltage across the high-voltage capacitor before powering on. If the fault is caused by a switch power failure or an open circuit of the switch tube, in most cases the voltage across the high-voltage filter capacitor is not discharged and is more than 300 volts. Be careful. Use a multimeter to measure the forward and reverse resistance of the AC power line.

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