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What causes the charger output current to be unstable

63 views Yuda Electronic (HK) Technology Co.,Limited. 2019-08-23

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Most of the chargers on the market today are chargers that use the complex voltage method, that is, fast charge, and the charging current is varied. What effect does the charger current have on the battery? Now let’s phone charger supplier explain why the output current of the charger is unstable.

 

Charger current magnitude affects battery

 

1. Since the absorption current is greater than the supply current, the power supply is in an overload state, which may cause overload and damage of the charger device, overheating damage, and encounter a power source with poor quality or lack of protection measures, and even a risk of fire.

 

2. Similarly, because the supply current is seriously insufficient, the supply voltage will be lower than the rated value, resulting in unstable or even inoperable equipment, which will seriously damage the mobile phone.

 

What causes the charger output current to be unstable

 

1. The charger has no current output. It may be that the fuse tube in the battery box is blown, the contact electrode of the battery box is damaged, or the battery is connected to the wire. This should be checked and processed one by one.

 

2. If the output current of the charger is unstable, it indicates that there is a bad contact in the battery circuit wiring. The wiring and connectors of the battery circuit should be checked to make the wiring of the battery circuit reliable.

 

3. The single rectifier arm of the charger rectifier is open. The single-arm arm break point of the charger rectifier should be found and re-welded.

 

4, the charger filter circuit has open circuit, open welding, failure failure. First check if the capacitor is normal. If it is good, it means there is an open soldering and it is open.

 

5, the charger voltage regulator circuit, the adjustment circuit has a device failure will also cause the charger no current output or output current instability failure.

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