The resistance value of an NTC resistor is dependent on the
temperature. In this experiment, a circuit is examined in which a
transistor is triggered with an NTC resistor and switches
a filament lamp on and off.
The NTC resistor, the potentiometer andvthe 10 k
Ω resistor form a temperature dependent
potential divider, from which the control voltage of a transistor
is picked up. In order to realise both a light circuit and a dark
circuit without a relay, the NTC resistor is inserted at
various positions in the potential divider.
- No additional cable connections between the building blocks needed - clear arragned and quick setup
- Contact saftey due to puzzle blocks system
- Corrosion-free gold plated contacts
- Doubled earning sucess: Electric circuit diagram on top, real components can be seen unterside
How does a transistor temperature switch work?
Examine how a transistor can be triggered with a
temperature dependent resistor to switch a lamp.