- #31
Need help with MOSFETs and photoresistors
- Thread starter hugo_faurand
- Start date
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SUMMARY
The forum discussion revolves around the construction of a light-steerable robot using photoresistors and MOSFETs. The user, HugoP, initially struggles with wiring the components on a breadboard and understanding the function of the MOSFETs. Key insights include the clarification that the BS170 is an N-channel MOSFET, which should be used correctly in the circuit, and that the gate must be more positive than the source for the MOSFET to conduct. After several troubleshooting steps and guidance from other users, Hugo successfully connects the components and achieves functionality.
PREREQUISITES- Understanding of MOSFET operation, specifically N-channel MOSFETs like the BS170.
- Basic knowledge of circuit design and breadboarding techniques.
- Familiarity with photoresistors and their role in controlling voltage.
- Ability to read and interpret electronic schematics.
- Study the BS170 MOSFET datasheet for detailed electrical characteristics and pin configurations.
- Learn about the differences between N-channel and P-channel MOSFETs and their applications.
- Research resistor value calculations and their impact on circuit behavior, particularly in relation to photoresistors.
- Explore tutorials on breadboarding techniques to improve circuit assembly skills.
This discussion is beneficial for electronics students, hobbyists building light-sensitive robots, and anyone interested in learning about MOSFETs and photoresistor applications in circuit design.
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