交大开元太阳能

Solar photovoltaic panels are front part of charger, responsible for change solar energy into electricity, the control circuit is responsible for storing electrical energy generated by the solar panel to the battery,which is the central control of the entire product. It mainly has two functions: First, the electricity generated by solar panels may save as much as possible to the built-in battery; second is when the charger to charge mobile phones and other devices, the security and as many as possible electricy  will be send in to battery.

The power output for devices like mobile phones, but as little as possible power consumption will be lost on the circuit.

Unfortunately, due to cognitive or technical problems, the current domestic manufacturers of solar energy charger control circuit design optimization was not given enough attention, lead to the production of solar chargers out of poor usability. Electricity generated by solar panels can not be completely stored in the battery; as charging for mobile phones and other devices when a large number of power lost on the circuit, the failure to input into the charging device. At the same time the circuit has its own standby power consumption from the large.A well-designed control circuit power consumption of its own in the microampere level. But currently in the market, many low-cost solar charger control circuit, since the power consumption level in milliamperes. This leads to a very short period of time, the charger's power will be self-consumed. To the charger need for frequent charging, virtually reducing the overall life of charger. Because the  built-in rechargeable battery has limited charge cycle times.

Evaluation of control circuit is good or bad is another important criterion for whether to do a variety of control circuit protection. Generally speaking, a well-designed solar charger, control circuit should have the over-current protection (when the charge current is too high, automatically limiting and will not cause harm to the charging device), overcharge protection (when the battery power to set up set limits, it will automatically stop charging the battery so as to prevent the possibility of battery damage or even explode), over-discharge protection (mainly used to protect the battery, to prevent deep discharge which can damage the battery), temperature protection (when the control circuit temperature exceeds the set temperature, the charger will automatically stop working to protect the batteries). If in order to cut costs, the control circuit does not have such protection, then it will seriously affect the life of solar chargers, and even damage to mobile phones and other digital devices, causes losses to consumers.
Therefore, consumers in choosing solar charger, be sure to choose quality, guaranteed products.