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Wednesday, January 20, 2016

12 VDC to 24 VDC Voltage Doubler using NE555 - Electronic Circuit Schematic Diagram

ElcoHow. - One again electronic circuit application using 555 IC is DC to DC converter step up voltage or voltage doubler. So, it nice for you who want to multiple your input voltage with several higher.


In here we will show you one electronic circuit of 12 VDC to 24 VDC Voltage Doubler using NE555 like in Figure 1. below. We also will show you component list needed and also global description about this circuit.

Electronic Circuit

Figure 1. 12 VDC to 24 VDC Voltage Doubler using NE555 Circuit(Source: Screenshot of Circuitstoday)

Component List
  1. 555 IC
  2. Capacitors
  3. Resistors
  4. BC107 and BC177 trransistors
  5. Diodes
Description

Electronic circuit like in Figure 1. above is 12 VDC to 24 VDC Voltage Doubler using NE555 circuit. According Circuitstoday site that published this circuit 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.

If you want to know more about this article 12 VDC to 24 VDC Voltage Doubler using NE555, please read from original source here.



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