Sine Wave Generator Ic

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.

Sine wave generator ic.

We can also use ic 4047 to generate sine wave. Waveform generation is required in various types of sensing actuation and time domain reflectometry tdr applications. Figure 7 shows the xr 2206 connected as a sine wave generator. In this circuit not only is the amplitude stabilized by servo control but voltage gain is included within the servo loop.

Another dimension in sine wave oscillator design is stable control of amplitude. 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. This 4 5v goes to pin 8 and pin 4. 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.

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. 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. The two pole low pass filter using a2 filters the square wave output.

One old but still good function generator ic is the xr 2206. Pin 1 is grounded. A 100 vrms output stabilized to 0 025 is achieved by the circuit of figure 2. 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.

The sine wave generator circuit that we will build is shown below. The output frequency and phase are software programmable allowing easy tuning. Two types of inverters currently exist on the market. It was first made by exar in the 1970s but is still around.

This ic is generally used in inverter circuit and we have previously made a square wave generator using this ic by adding few resistors and capacitors in previous circuit we can obtain sine wave with ic 4047 as shown in the circuit diagram below. 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. So first for the power requirements of this circuit we use 4 5v to the 555 timer chip. 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.

This is accomplished through an inverter circuit using electronic components. 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. Although complex in appearance this circuit requires just 3 ic. The breadboard schematic of the above circuit is shown below.

No external components ar.