**2.7 Collecting all the components together**

As seen in **Figure 4** all the component of photovoltic were collecting together, solar panels generate power when solar energy is available, the regulator to prevent batteries' damage, the battery for storing collected energy to be used later,

#### **Figure 2.** *Parts of microscope [13].*

**445**

**Figure 5.**

*Modulated circuit of microscope.*

*Application of Solar Energy in Medical Instruments (Microscope)*

converters and inverters for adapting the stored energy, and finally, the load (microscope) consumes the stored energy to do work. When all of the components are in balance and are properly maintained, the system will support itself for years [9].

This chapter contains experimental procedure and measurement which has been recorded during the testing period medical devices operating solar (For example:

2.To avoid the use of the inverter because it is expensive. Transformer has been canceled, two potentiometers were connected in series (one static and variable), adding Zener with a value of 12 volt (to maintain the value of effort fixed), it was used for halogen bulb 12v, switch and fuse. And finally connect all components of the circuit taking into account the polarity. **Figure 5** shows that.

microscope). In addition it presents operational problems.

The circuit of the microscope was modulated because:

1.The device work with AC but solar cell generate DC.

*DOI: http://dx.doi.org/10.5772/intechopen.97177*

**3. Research methodology**

*A solar installation with DC and AC loads.*

**3.1 Introduction**

**Figure 4.**

**3.2 Design circuit**

**Figure 3.** *Microscope' circuit diagram.*

*Application of Solar Energy in Medical Instruments (Microscope) DOI: http://dx.doi.org/10.5772/intechopen.97177*

#### **Figure 4.** *A solar installation with DC and AC loads.*

converters and inverters for adapting the stored energy, and finally, the load (microscope) consumes the stored energy to do work. When all of the components are in balance and are properly maintained, the system will support itself for years [9].
