Ce diaporama a bien été signalé.
Nous utilisons votre profil LinkedIn et vos données d’activité pour vous proposer des publicités personnalisées et pertinentes. Vous pouvez changer vos préférences de publicités à tout moment.

Electronics ppt

56 553 vues

Publié le

presentation for basic electronics for robotics beginners

Publié dans : Technologie, Business

Electronics ppt

  1. 1. Circuit components used in robotics Semiconductor Passive Active devices Voltage source Current source Diodes Resistors Capacitors Inductors Transistors
  2. 2.  Coding  Types of values written  • 47R • 5R6 • 6k8 • 1M2 Uses
  3. 3. Used in two configurations • As variable resistor • As potentiometer
  4. 4. Thermistors  Equation of operation  •  • PTC Resistance increases with temperature NTC Resistance decreases with temperature LDR •Light Dependent resistor •Made of CdS,CdSe,PbS •Uses •On off light relay •As a light meter to measure intensity of light
  5. 5. ◦ Types  Ceramic  Electrolytic ◦ Measuring ◦ Uses
  6. 6. Primary cells  can be use only once  Zinc–carbon battery  Alkaline battery  Secondary • • • • cells Can be reused by charging Lead acid Lithium ion Lithium polymer
  7. 7. • The number of poles defines the number of separate contacts for a switch position (inputs) • The number of throws is the number of switch positions available(output)
  8. 8. • Construction of DPDT switches • Uses of DPDT switches •For reversal of polarity •Single switch to control 3 different outputs
  9. 9. At the junction, free electrons from the N-type material fill holes from the P-type material.
  10. 10. Half wave rectifier 2. Full wave rectifier a. Centre tapped b. Bridge type 1. Half wave rectifier Input Output
  11. 11. Input Output Centre - tapped Output Input Bridge type
  12. 12.   An LED is a semiconductor light source. Uses ◦ General lighting ◦ Displays ◦ Traffic and street lights ◦ Decorative purposes
  13. 13.    A photodiode is a type of photo detector capable of converting light into either current or voltage, A photodiode is designed to operate in reverse bias. Used in solar cells
  14. 14.  Passive devices ◦ Resistors ◦ Capacitors  Active devices ◦ Batteries  Semiconductor devices ◦ Diodes ◦ LED ◦ Photodiode
  15. 15. ◦ Mechanically controlled electrically activated switch ◦ Uses  To switch from low current to high current
  16. 16.   Used for reversal of direction of motor Working
  17. 17. Anti-Clockwise movement Clockwise movement
  18. 18.    Transfer resistor Types:-BJT, FET Uses ◦ Amplifiers ◦ Switches ◦ Regulators
  19. 19.  Principle- Because a transistor's collector current is proportionally limited by its base current, it can be used as a sort of current-controlled switch.
  20. 20.   A small switch may be used to control a relatively high-current load Very quick and efficient
  21. 21.   A simple and less power consuming display Two configurations ◦ Common anode ◦ Common cathode   For displaying numeric digits Used in condition of small spaces
  22. 22.  Write the terminals which will display the following digits? ◦ ◦ ◦ ◦ 6 9 2 5
  23. 23. Internal connections in a breadboard
  24. 24.       How to use is it? Measuring resistance Measuring current Measuring voltage Checking continuity Measuring the type of transistor

×