12V to 24V DC Converter Circuit
The circuit we’ve described DC Converter below to generate an output voltage that’s double the magnitude of the input voltage. In our circuit, we have 12 volts at the input terminal and about 24 volts at the output terminal. The circuit’s primary building block is a well-known IC called the CD4049, which is a hex inverter. With the help of a single IC and a few more components, this can be built.
CD4049 has six inverter gates on a single package, as seen in the diagram above. Pin 3 is used for input in this IC, while pin 2 is used for output in the first gate. Pin 5 is utilised as an input and pin 4 is used as an output terminal for the second gate, and so on for the remainder of the gates. Pin 1 is utilised for supply voltage, while pin 8 is used for grounding. However, pins 13 and 16 are not used. The IC operates in the 3V to 15V voltage range, and any voltage greater than 15V will cause the IC to fail. As a result, the input voltage should be between 3 and 15 volts.
Circuit Diagram of 12V to 24V DC Converter:
- CD4049 – 1
- R1(6.8K) – 1
- C1(.1uF) – 1
- C2,C3(470uF) – 2
- D1,D2(1N4148) – 2
- RELAY – 1
In this circuit for doubling the input voltage, we are using NOT gate CD4049 IC. In this circuit, we are using all 6 gates of NOT gate. Before getting familiar with the working of the circuit it is important that one should get familiar with the NOT gate truth table which is as follows-
In the NOT, if we supply logic low (i.e. 0) In the input terminal then we receive logic high (i.e. 1) at the output terminal. Similarly, if we give logic high (i.e. 1) at the input terminal then we receive logic low (i.e. 0) at the output terminal.
CD4049 has six inverter gates on a single package, as previously stated. In this IC, pin 3 is used for input, whereas pin 2 from the first gate is used for output. Pin 5 is utilised as an input and pin 4 is used as an output terminal for the second gate, and so on for the remainder of the gates. Pin 1 should be connected to the power source, and pin 8 should be connected to the ground.
Assemble the circuit correctly, and then turn on the power. We’re using all six gates of the NOT gate in this circuit. We initially built an oscillator with the help of pins 3 and 4, as well as capacitor C1 and resistor R1. The oscillation frequency is determined using the values of R1 and C1. To act as a buffer, the reset left gates are connected to the parallel. All of the input pins (3, 5, 11, and 14) are interconnected and coupled to the frequency source via an oscillator. In the same way all the output pins, i.e. 2,4,12 and 15 are linked together and connected to the voltage enhance circuit.
By the support of the capacitor as well as resistor a voltage multiplier circuit can be constructed. This circuit is mainly used at the time when we need to produce more output voltage as compared with the given input voltage. In this circuit, we are using largely accepted generally employed half wave series multiplier.
Two diodes, two capacitors, and an oscillating voltage are required for the creation of the voltage doubler circuit. As shown in the circuit diagram, the diode D1 operates in the forward bias state, charging the capacitor C2 until it reaches the input voltage supply’s peak value, at which point it rotates like a battery in series with the power supply. Diode D2 begins to conduct at the same time as diode D1 and capacitor C3 begin to charge. As a result, the voltage we get at C3 is the sum of the voltage supply and the voltage across capacitor C2. The main benefit of this circuit is that it allows for higher value production.
So at the output terminal of the diode D2 you can run 24V relay with the assist of 12V of power supply.