Set-up transformers are being used generally but it is not used everywhere. So, voltage multiplier circuits are being used. So in this project, we are going to design a “12v to 24v Voltage Doubler Circuit using CD4049 IC”. These can be built by using less number of diodes as well as capacitors. Such circuits are like rectifiers and are being used to convert Alternating current to direct current as well as they can produce a high DC voltage.
An advantage of this is that it can also produce High DC by consuming a very low AC. Examples include LED torches or microwave ovens e
Hardware Components
The following components are required to make the Voltage Doubler Circuit
| S.No | Components | Value | Qty |
|---|---|---|---|
| 1. | Breadboard | – | 1 |
| 2. | Battery | 9v | 1 |
| 3. | Connecting Wires | – | 1 |
| 4. | Buffer/Inverter IC | CD4049 | 1 |
| 5. | Diode | 1N4007 | 2 |
| 6. | Resistor | 6.7k | 1 |
| 7. | Electrolytic Capacitor | 220uF | 2 |
| 8 | Ceramic Capacitor | 0.1uF | 1 |
CD4049 Pinout
For a detailed description of pinout, dimension features, and specifications download the datasheet of CD4049
Voltage Doubler Circuit
Working Explanation
The resistors R1 and R2 and on the NOT gate thus making it an oscillating circuit. The capacitor c2 is charged by the four not gates that are being arranged in parallel lines making it a buffer. DC is given to Vin and charging starts in the c2 capacitor and it will peak the voltage given as an input. C2 now starts working as the second source of power connected to the VIN gate having 3-15 volts.
The D1, as well as D2, is forward biased and the capacitor c3 gets charged by the c2 capacitor. This will result in the doubling of the voltage as that of the Vin. Thus, the output will have doubled voltage. We have used 5, 9, and 12 volts as input voltages, and the practical output voltage is given below in the chart:
Applications
- CMOS to DTL/TTL Hex Converters
- High sink current for driving two TTL loads
- Convert logic level from high to low
