The LED phosphor dispensing process is a fairly basic part of the LED process. Let's see how it is done.
Ready to work:
1. Open and inspect all LED production equipment (oven, precision electronic scale, vacuum box)
2. Clean the small beaker used for the glue with acetone.
3. Prepare the required mass production specifications or corresponding contact sheets, and the corresponding type of glue, and confirm that they are all within the effective period of use.
Start dispensing with glue:
1. Description of the order of the glue: The eucalyptus + A glue is mixed according to the ratio (can be dispensed once according to the order), and then the phosphor + B glue is added in proportion to the mixture (should be stirred evenly). Vacuum again afterwards.
2. Calculate the required weight of each material according to the proportion and production quantity of the phosphor in the “Production Specification†or the engineering notice.
3, adjust the precision electronic said four bases so that the electronic scale is horizontal.
4. Place the clean small beaker on a precision electronic scale. After the estimation, according to the ratio of the phosphor in the mass production specification, weigh the required weight of phosphor and A and B glue respectively.
5. Stir the prepared phosphors by hand for 20 minutes to 30 minutes until the phosphors are evenly distributed.
6. Vacuum the prepared fluorescent gel until it is invisible. After taking it out, put it on a clean glass cover at room temperature. Stir in the same direction for 2 minutes to 3 minutes before use. Stirring speed per revolution. 2 seconds to 3 seconds.
The main function of the PWM Solar Controller is to manage the charging and discharging process between solar panels and batteries in solar power generation systems. It is a traditional charge controller that controls the charging voltage and current through pulse width modulation technology to maintain the charging state of the battery and protect the battery.
Main effect:
Charging control: PWM Solar Controller controls the charging voltage and current through pulse width modulation technology to ensure that the battery is charged at an appropriate voltage and current to prolong the service life of the battery.
Overcharge protection: The PWM Solar Controller can monitor the charging status of the battery, and when the battery is fully charged, it will automatically stop charging to avoid battery damage caused by overcharging.
Over-discharge protection: PWM Solar Controller can monitor the discharge state of the battery. When the battery power is lower than a certain level, it will automatically stop discharging to avoid battery damage caused by over-discharge.
Differences from other charge controllers:
Modulation technology: PWM Solar Controller uses pulse width modulation technology to control the charging and discharging voltage and current to maintain the charging state of the battery. In contrast, MPPT Solar Controller uses maximum power point tracking technology to adjust the output voltage and current of solar panels in real-time to achieve maximum power output.
Energy conversion efficiency: Compared with the MPPT Solar Controller, the energy conversion efficiency of the PWM Solar Controller is lower. Because the pulse width modulation technology cannot adjust the operating point of the Solar Panel in real-time, the output power of the solar panel may not be maximized.
Application Scenario: PWM Solar Controller is a traditional charge controller suitable for small-scale, low-power solar power generation systems. The MPPT Solar Controller is suitable for larger-scale, high-power solar power generation systems to improve energy utilization efficiency.
Overall, the main role of the PWM Solar Controller is to manage the charging and discharging process in the solar power generation system and protect the battery from damage. Compared with MPPT Solar Controller, it uses traditional pulse width modulation technology, and the energy conversion efficiency is lower. Suitable for small-scale, low-power solar power generation systems. The MPPT Solar Controller uses maximum power point tracking technology, which can improve the energy utilization efficiency of solar panels, and is suitable for larger-scale, high-power solar power generation systems.
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