Why is the transformer core made of metal sheets?
Explanation of why the electric transformer has a core made of iron sheets. Eddy or Foucault’s currents
Mar 062020
Mar 042020
400 watts Stereo Amplifier Circuit using STK4050
This 400 watts stereo amplifier circuit uses the Sanyo STK4050 hybrid IC, a high quality low noise amplifier. Its maximum output power is 200W per channel
Feb 242020
Electronic Music Metronome circuit using a 555 timer
This Electronic Music Metronome circuit, allows those persons who study or are music fans, to keep the timing, quite accurately.
Feb 202020
Power failure alarm using transformer and relay
This power failure alarm circuit is very simple and is very useful when used with electric ovens, a refrigeration systems or to prevent a thief from cutting off the electrical power because it immediately warns of the problem. It also serves you when the fuses have blown.
Feb 182020
This 12v battery charger circuit using a LM350 and LM301A op-amp.
This 12v battery charger circuit allows you to charge a 12-volt car battery using a LM350 voltage regulator and a LM301A operational amplifier.
Feb 152020
With this sound activated flash circuit, you can achieve incredible pictures of the most unexpected moments.
Pictures like a water balloon that just burst and the water still floats in the air, or when an object of any type explodes.
Feb 132020
How to Protect the 500mA Fuse of a Multimeter?
It is very important to protect the 500mA fuse of a Multimeter due to the high frequency that these are burned.
Feb 132020
Water level alarm with three transistors
Water level alarm. Simple & small alarm with few components. Has small current demand, it can work with a 9V battery for a long time
Feb 122020
Capacitor charging process
Capacitor charging process shows the variation of voltage and current in the capacitor over time, when it is connected to a DC voltage source
Feb 112020
Logic probe circuit with CD4001 IC
This logic probe circuit is useful for people who needs an instrument to measure the logic levels on digital circuits. This circuit is implemented with CMOS IC technology and is recommended for testing circuits using the same technology
Feb 102020
Transistor – Zener diode Voltage regulator circuit
This circuit delivers an output voltage established by the voltage of the zener diode less 0.7 volts. The 0.7 volts is the average voltage drop between the base and the emitter of a transistor. (Vbe)
Feb 072020
Parallel RC circuit
Voltage, Currents, Phasor diagram & Impedance. Voltage is the same on the capacitor and resistor. Current is ahead of the voltage in the capacitor