This is a web page with information on designing sine wave oscillators using Op Amps. The theory should work with most Op Amps.**broken link removed** gives information on square wave oscillators.
This is a web page with information on designing sine wave oscillators using Op Amps. The theory should work with most Op Amps.**broken link removed** gives information on square wave oscillators.
You can drive LM324 from 12V....you wont need a resistor in the supply line to it. Though you should make sure you limit the output of the LM324 to say under 20mA...but that shouldnt happen anyway.
If you want a sine wave oscillator, you can just set lm324 up as a square wave oscillator, then add rc filters sandwiched in between lm324 buffers after it to get a sine wave.
Driving the MOSFETs with 50Hz would result in severe heating. The normal way is to use high frequency (e.g >100kHz) PWM to drive them, with the PWM duty-cycle varied at 50Hz.
Driving the MOSFETs with 50Hz would result in severe heating. The normal way is to use high frequency (e.g >100kHz) PWM to drive them, with the PWM duty-cycle varied at 50Hz.
having a 50hz sine wave is a good idea because you can feed it into a pwm comparator, and let it modulate the pwm duty cycle of a pwm output, then this will switch current into the inverter inductor, and give you your 50hz power wave.....ill try and dig out a sim in ltspice out for you to show what i mean...back soon.....got to go to shop now though b4 they close up.
having a 50hz sine wave is a good idea because you can feed it into a pwm comparator, and let it modulate the pwm duty cycle of a pwm output, then this will switch current into the inverter inductor, and give you your 50hz power wave.....ill try and dig out a sim in ltspice out for you to show what i mean...back soon.....got to go to shop now though b4 they close up.
Still not clear what you are trying to do. Sine wave? Square? Triangle? Saw? Pulse?
What is the intended outut of the LM324 circuit, and what is the intended output of the overall project?
Still not clear what you are trying to do. Sine wave? Square? Triangle? Saw? Pulse?
What is the intended outut of the LM324 circuit, and what is the intended output of the overall project?
A square wave would do just fine and the output voltage of the LM324 doesn't really matter because the MOSFETs are voltage based and can be driven by a very low voltage.
for the overall output of the project is inverting a 12v DC into 220v AC