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| Electronics System 1
(0738) |
| Specifications Size: 50 x 42 x 12 cm – Weight: approx. 3.5 kg Packing: external suitcase in hard ABS, internal foam for prevent accidental shock. COMPONENTS : • Board (for electricity and electronics) • Si diode (2 plug) (2x) • Signal transistor PNP (4 plug) • Signal transistor NPN (4 plug)
• Power transistor PNP (4 plug) • Power transistor NPN (4 plug) • LED, red colour (2 plug) • LED, green colour (2 plug) • Infrared LED diode (2 plug) • Unijunction transistor UJT (4 plug) • Silicon controlled rectifier SCR (4 plug) • Triac (4 plug) • Photo transistor (2 plug) • Photoresistance LDR (2 plug) • Zener diode 6.2 V (2 plug) • PTC resistor (2 plug) • NTC resistor (2 plug) • Potentiometer 1kΩ 0.25 W (4 plug). LAWS & PRINCIPLES INVESTIGATED : • Characteristics of diode • Investigating transistors • Comparing PNP and NPN transistors • Characteristics LED diodes and Infrared LEDs • Looking at photoresistors versus phototransistors • Experiments on power dissipation
• Investigating Signal versus Power transistors • Transistors in power applications: thyristors (SCR, UJT and TRIAC) • Theory of rectification in circuits • Theory of reflection in circuits • Temperature and the use of thermistors in circuits • Looking at Zener diodes in circuits • The astable multivibrator (or flip-flop circuit). |
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