Practical case: Automatic Reservoir Pump Controller
Level: Medium | Construct a transistor-driven relay circuit to automatically control a water pump using a float switch.
Analog Electronics, Medium, Relay, Relay_Medium
Analog Electronics
Practical case: Overvoltage protection
Level: Medium – Disconnect a critical load using a normally closed relay contact when a voltage threshold is exceeded.
Practical case: AND and OR logic using relays
Level: Medium – Build basic logic gates by wiring the contacts of multiple relays in series and parallel.
Practical case: Automatic power switching
Level: Medium – Implement an SPDT relay to automatically alternate between a main power supply and a backup battery.
Practical case: DC motor control with a transistor
Level: Basic – Learn to use an NPN transistor as a switch to drive a DC motor, including the use of a flyback diode.
Practical case: Noise suppression with RF choke
Level: Medium – Demonstrate the high impedance of the inductor at high frequencies to block noise in power lines.