Electronics Area – Electrical and Electronics Tutorials and Circuits
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Electrical and Electronics Tutorials and Circuits
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9VDC Power Supply using Zener and Transistor
This Power source can be used to power circuits or electronic devices that would normally use a 9 volt battery, saving us the cost of the battery while being used at home.
Astable multivibrator using NAND gates
This astable multivibrator uses two NAND gates of the 4 available on the 7400 TTL integrated circuit. Two LEDs are used to view the status or logic output of each gate.
DIAC – Diode for Alternating Current
DIAC (Diode for Alternating Current) is a bidirectional trigger diode designed to trigger TRIAC and thyristors. DIAC is a voltage-triggered device
Transformerless Power Supply Circuit Diagram
This circuit is designed to connect to a specific circuit because it can only provide a maximum and minimum current.
Car Battery Booster circuit (Battery Booster Circuit)
Car Battery Booster Circuit
This Car Battery Booster Circuit, is very useful when the car battery has low charge or does not deliver the expected current to operate the starter motor.
Transistorized Voltage Regulator (Zener & Transistor)
Explanation of a transistorized voltage regulator. Zener diode and transistor voltage regulator circuit diagram
Multitone generator circuit – Open door indicator using CD4001
Multitone generator circuit / Open door indicator using CD4001
This very simple multitone generator circuit has many applications but here it is shown as door indicators, generating a different tone for each door of our house
Dielectric constant / Relative Permittivity (Capacitor)
What is the Dielectric constant / Relative Permittivity? The dielectric constant is the ratio of the permittivity of a substance to the permittivity of free space. It is a dimensionless physical constant
LED Sequencer using 4017 Decade Counter (LED Chaser)
LED Sequencer using 4017 Decade Counter (LED Chaser). This circuit has 10 LEDs connected to the decade counter outputs. LEDs light up in sequence. Only one LED is ON at a time
Zener diode Voltage regulator Circuit Design – Diagram
Design method. Determination of the voltage, power of the zener diode and of the limiting resistor Rs
Voltage Regulators – Linear, Switching
Voltage regulators (linear, switching) provide a stable and fixed voltage output to give energy to electronics circuits from an unregulated power source
12 Volt Car Battery Charger with LM7815
This 12 volt car battery charger is a circuit with few components that allows us to charge a common car battery. Battery charging stops when it reaches its maximum voltage.