Zener diode Voltage regulator Circuit Design

Zener diode Voltage regulator Circuit Design

Zener diode Voltage regulator calcutation

A Zener diode Voltage regulator calcutation is made using a simple circuit of a resistor /Rs) and a Zener diode (Z).

This two elements values and characteristics are obtained using special formulas

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Logic probe circuit using CD4001 IC

Logic probe circuit using CD4001 IC

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

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Temperature alarm circuit with Op. Amp.

Temperature alarm circuit with Op. Amp.

Temperature alarm circuit with 741 operational amplifier

This temperature alarm circuit with operational amplifier activates a relay when the temperature of the place to be controlled exceeds a set level. Useful for an oven temperature control or a cooling system

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Temperature gauge circuit using LM324 IC (PCB)

Temperature gauge circuit using LM324 IC (PCB)

Temperature gauge circuit using the LM324 IC

The temperature level is displayed using 4 LEDs:
A green LED indicates that the temperature is OK.
Two yellow LEDs indicate that the temperature is higher than normal.
A red LED indicates that the temperature is very high

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Transformerless Power Supply circuit

Transformerless Power Supply circuit

Transformerless Power Supply Circuit We will use a zener diode among other elements to acheive the Transformerless Power Supply circuit. This  means that our power supply will give a limited range current value (it will be a maximum and a minimum posible current that the power supply circuit can deliver). This power suply must be permanently connected to the circuit as a whole […]

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