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The outputs of a Pic Microcontroller are rated at 3 volts. This will drive solar motors and other low powered motors/devices. These are normally powerful enough for school projects. However, if a more powerful motor or a solenoid is required a transducer module can be used. One example of a transducer driver is the power transistor circuit and a secondary power source shown below. |
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The high power transistor TIP 31A is ideal for this circuit. The connections are shown above. A motor, solenoid or other output device can be connected. Normally a 9 volts secondary power source is used, especially for school projects. |
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The diagram above shows a PCB board arranged to hold the components for this simple output module. In examinations this type of module is sometimes called a transducer module. |
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QUESTIONS: |
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