Circuit Schematic Voltage Doubler using NE555

555. - This is electronic circuit schematic of Voltage Doubler using NE555 IC like in Figure 1 below. In this circuit schematic the basic component used are transistor and NE555 IC. 

In here we will give you global description about DVoltage Doubler using NE555 and then we will give you link to continue your reading from original source as external website.

Circuit Schematic

Image Courtesy of Circuitstoday

Component Part

• NE555 IC
• Transistors
• Resistor
• Capacitor
• Diodes

Description

Circuit schematic like in Figure 1 above is Circuit Schematic Voltage Doubler using NE555. Circuitstoday site describe that the circuit diagram of a very simple voltage doubler using NE555 timer is shown here. Here IC NE555 is wired as an astable mutivibrator operating at around 9KHz. The base of the two transistors (Q1 and Q2) is shorted and output of the astable multivibrator (pin 3) is connected to it. When the output of astable multivibrator is low, Q1 will be OFF and Q2 will be ON. The negative terminal of the capacitor C3 will be shorted to ground through T2 and it will be charged to the input supply voltage. When the output of the astable multi vibrator is high, transistor Q1 will be ON and transistor Q2 will be OFF. The capacitor C4 will be charged to the voltage across capacitor C3 plus the input supply voltage (that is double the input voltage). This is how the circuit works.

This voltage doubler circuit can deliver only up to 50mA output current and above that current limit the output voltage will be dramatically reduced. The actual output voltage will be around 19V for a 12V DC input and also the output voltage will be a bit unstable. Anyway, for low current applications this circuit is well enough.

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