The proposed IC 555 based modified square wave inverter circuit generates accurately spaced PWM pulses which imitates a modified sine wave very closely and thus can be considered as good as its sine wave counterpart design. Here we use two stages for creating the required PWM pulses, the stage comprising the ICs 741 and the […]
Square
7 Accurate Square Wave Oscillator Circuits
In this article I will comprehensively discuss 7 accurate RC square wave oscillator circuits with 50% duty cycle, by appropriately configuring the gates from various CMOS ICs such as 4001, 4011, 4093, 4046, 4047, 4016, 4060 etc. and also using op amps. Definition The square wave oscillators included in this article can be defined as […]
Convert a Square Wave Inverter into a Sine Wave Inverter
In this post I have explained a few circuit concepts which can be employed for converting or modifying any ordinary square wave inverter to sophisticated sine wave inverter design. Before studying the various designs I have explained in this article, it would be interesting to know the factors which typically makes a sine wave inverter […]

