Sine Wave Generator Ic

A modified sine wave inverter and a pure sine wave inverter.

Sine wave generator ic.

The sine wave generator circuit that we will build is shown below. Pin 1 is grounded. There are several sine shaper approaches covered well here overdriven pairs can be used to good effect in an ic design although a more sophisticated approach uses a fully translinear sine shaper circuit a la the. Figure 1 this circuit generates a sine wave by first generating a square wave at the required frequency with amplifier a1 that is configured as an astable oscillator with the frequency determined by r1 and c1.

The output frequency and phase are software programmable allowing easy tuning. This 4 5v goes to pin 8 and pin 4. These ics all used the same basic approach an astable with tracking square and triangle outputs followed by feeding that triangle wave into a circuit known as a sine shaper. A 100 vrms output stabilized to 0 025 is achieved by the circuit of figure 2.

The following article explains a pure sine wave inverter circuit using the ic 556 which forms the main sine wave processor device in the circuit. Figure 7 shows the xr 2206 connected as a sine wave generator. One old but still good function generator ic is the xr 2206. The max038 is a high frequency precision function generator producing accurate high frequency triangle sawtooth sine square and pulse waveforms with a minimum of external components.

The breadboard schematic of the above circuit is shown below. We can also use ic 4047 to generate sine wave. Another dimension in sine wave oscillator design is stable control of amplitude. Figure 1 shows the schematic for the quick sine wave generator.

How it works the presented design actually produces a modified sine wave output but the waveform is highly processed and constitutes an exact equivalent of a sinusoidal waveform. Sine wave generator using 4047 ic. It was first made by exar in the 1970s but is still around. The ad9833 is a low power programmable waveform generator capable of producing sine triangular and square wave outputs.

This is accomplished through an inverter circuit using electronic components. No external components ar. The output frequency can be controlled over a frequency range of 0 1hz to 20mhz by an internal 2 5v bandgap voltage reference and an external resistor and capacitor. A pure sine wave is highly desirable because the vast majority of electrical plug in appliances are designed to run on a true sine wave signal.

In this circuit not only is the amplitude stabilized by servo control but voltage gain is included within the servo loop. If you need a sine wave generator that can be set to any frequency in the 0 01 hz to 1 mhz or more take a look at the xr 2206. Although complex in appearance this circuit requires just 3 ic. Two types of inverters currently exist on the market.

So first for the power requirements of this circuit we use 4 5v to the 555 timer chip.