dc inverter
DC to AC Inverter
Assignment # 2/ Spring 2013
CE721
Ahmad Ghaffari, 1203840
Submit Date: Tuesday 19, 2013
Abstract
DC-AC inverter is a device that converts a direct current (DC) into an alternating current (AC). When there is no AC main power for applications in caravans, remote area and etc., this tool is very suitable to use. It mainly converts a DC source (like a car’s battery) to an AC source (230V) to use for power application like laptop, TV and so on. First it converts a DC voltage to an AC voltage then it boosts up the AC voltage to mains voltage level by using a transformer. In this laboratory experiment, an CMOS IC were used to function as a 50 Hz oscillator, along with the necessary transistors, resistors, capacitors and a transformer to form a 230V AC source from a 12V DC. The design process was taken through the several steps of calculations, computer simulation and verification. The circuit design was simulated by the Multisim software. The effects of circuit were studied during simulation and assembled circuit in real time. One of fact that has to be considered is energy consumption. In this circuit a CMOS IC has been used which has very low consumption. The ideal dc to ac inverter is the one can produce a perfect sin wave. Since it is complicated, here a simple circuit that produce a square wave is used.
DC to AC
The circuit diagram illustrated in figure (1a) is a DC to AC inverter drawn in Multisim program. The CMOS IC in this diagram produces a 50 Hz square wave for application use.
Figure (1a) Circuit diagram.
By supplying a 12V DC source to the circuit, a 230V AC was achieved and output signal measured by an oscilloscope as shown in Figure 1b.
Figure (1b).Input and output signals.
As figure (1b) shows the input signal is in red colour (12V DC) and output is in yellow (230V AC).
Structure:
The circuit consists of three main parts: A)
Assignment # 2/ Spring 2013
CE721
Ahmad Ghaffari, 1203840
Submit Date: Tuesday 19, 2013
Abstract
DC-AC inverter is a device that converts a direct current (DC) into an alternating current (AC). When there is no AC main power for applications in caravans, remote area and etc., this tool is very suitable to use. It mainly converts a DC source (like a car’s battery) to an AC source (230V) to use for power application like laptop, TV and so on. First it converts a DC voltage to an AC voltage then it boosts up the AC voltage to mains voltage level by using a transformer. In this laboratory experiment, an CMOS IC were used to function as a 50 Hz oscillator, along with the necessary transistors, resistors, capacitors and a transformer to form a 230V AC source from a 12V DC. The design process was taken through the several steps of calculations, computer simulation and verification. The circuit design was simulated by the Multisim software. The effects of circuit were studied during simulation and assembled circuit in real time. One of fact that has to be considered is energy consumption. In this circuit a CMOS IC has been used which has very low consumption. The ideal dc to ac inverter is the one can produce a perfect sin wave. Since it is complicated, here a simple circuit that produce a square wave is used.
DC to AC
The circuit diagram illustrated in figure (1a) is a DC to AC inverter drawn in Multisim program. The CMOS IC in this diagram produces a 50 Hz square wave for application use.
Figure (1a) Circuit diagram.
By supplying a 12V DC source to the circuit, a 230V AC was achieved and output signal measured by an oscilloscope as shown in Figure 1b.
Figure (1b).Input and output signals.
As figure (1b) shows the input signal is in red colour (12V DC) and output is in yellow (230V AC).
Structure:
The circuit consists of three main parts: A)
References: 1. : http://doc.chipfind.ru/nsc/4069ub.htm 2. gc.digitw.com/Circuit/WaveGens.pdf