TL494 PWM 50HZ to 100Khz | TL494 PWM Schematic

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TL494 Pulse Width Modulation Control Circuit
TL494 PWM Controller Frequency 500-100kHz
TL494 PWM 50HZ to 100Khz Inverter
TL494 100A PWM Controller
tl494 inverter circuit
tl494 pwm circuit
tl494 inverter circuit
tl494 inverter
pulse width modulation
PWM Generator
TL494 PWM Generator
tl494 pwm module
tl494 pwm controller module
SUBSCRIBE: / @tricksofali
TL494 PWM Schematic :
drive.google.com/file/d/1tncD...
Components :
TL494CN ic x1
16 pin ic socket x1
1k ohm resistor x2
10 ohm resistor x2
4.7k ohm resistor x1
56 ohm 1W resistor x2
25v 1000uf capacitor x1
2.2nF capacitor x1
100nF capacitor x1
10k ohm multi turn potentiometer x1
100k ohm multi turn potentiometer x1
S8050 Transistor x1
S8550 Transistor x1
pin header x2
veroboard
#diy #pwm #tl494 #inverter #invertercircuit

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Опубликовано:

7 окт 2022

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Комментарии : 31

@jmu9969 Год назад

Interesting and well done! I have however an observation: in the circuit diagram shown at 5:38, are the two pwm signals complementary ( one goes up while the other goes down with some dead time in between?

@TricksOfAli Год назад

Hi dear friend . Yes, exactly two pwm signals are complementary, one goes high while the other goes low with some dead time in between.

@jmu9969 Год назад

@@TricksOfAli Thank you. The signals as drawn do not reflect that though. My other question is; is the Pwm signal too week that we need the two transistors at each outputting to boost it or do they serve other purpose? Thank you?

@TricksOfAli Год назад

The pwm output is 5 volts and we make the output 12 volts with two transistors, and the pwm ic output is not enough to run several transistors.

@theinnovati0nlab782 3 месяца назад

Very nice! I am currently working on a high power 5000W synchronous dc to dc boost converter system and I am planning to use TL494 as well. Great video. Success wishes! 👍👍 The Innovati0n Lab💥

@TricksOfAli 3 месяца назад

Good luck. I am also working on the Buck Boost project with high power. I hope we will be successful together

@theinnovati0nlab782 3 месяца назад

@@TricksOfAli Absolutely! Keep us posted on your progress, and I will do the same. I have my eyes on 1000W - from an input of 12V....which seems super hard to do..hahaha

@TricksOfAli 3 месяца назад

@@theinnovati0nlab782 Everything is possible, we will definitely do it😊💪

@bernardolomas1743 Год назад

Hola, muy buen video. Queria realizarte algunas consultas: ¿La tensión máxima de los pulsos PWM obtenidos a la salida de que valor es? ¿Esta tensión maxima es regulable o siempre será constante? ¿Esos pulsos PWM obtenidos en la salida se podrían usar para alimentar un puente H? Muchas gracias por el video, fue de mucha ayuda.

@TricksOfAli Год назад

Hola, disculpa la demora. El voltaje de salida es de 12 voltios. Se puede cambiar a través de los transistores de amplificación de pulso, pero no necesita un voltaje más alto, 12 voltios son suficientes para controlar los transistores, pero puede usar transistores más grandes para aumentar su corriente.

@danielwhite5705 Год назад

I want to get 220v 50khz does this circuit helps me?

@user-nq1ly5ym2u 4 месяца назад

Hi. It is such a great video! I would love to use this pwm control to control the speed of an ec fan. Which pin of tl494 is the pwm output that goes to the fan? Do you think the tl494 would also work with Vcc=5v coming from usb c port? The datasheet recommends 7-40v. It says max 41v and it mentions no minimum. Would it work without transistors? Regards phil

@TricksOfAli 4 месяца назад

Hello. TL49 should work better with 12V voltage, it cannot be started or it does not work properly with 5V because of the 5V regulator inside the IC. What are the specifications of the fan you want to control?

@user-nq1ly5ym2u 4 месяца назад

@@TricksOfAli thank you for your answer. That’s a pity it will not work with 5v. My fan needs 4.5v-6.2v. Maybe i can give it a try anyway. Otherwise i would probably make the design with two ne555.

@user-nq1ly5ym2u 3 месяца назад

@@TricksOfAli hi. I just tested it and it works perfectly well with Vcc 5v. The ic self regulates the control voltage. It is now at 3.8v in my project which is enough. Thanks again for you video

@supriobarua53 Год назад

How can I calculate the powrr ratings for all the resistors..are they different according to their pin or can I just take it as my total input/output power of the circuit?

@TricksOfAli Год назад

The power of resistors depends on the number of transistors and their power. (Their accurate calculation requires the information of the whole circuit and the model of the parts)

@martingomez850 Год назад

Hola buen video,te queria preguntar si es obligatorio usar esos transitores NPN y PNP,o puedo solamente usar la salida para existar la bace de dos transistores NPN?

@TricksOfAli Год назад

Hola querido amigo . Para impulsar los MOSFET, se necesita más corriente que la corriente de salida del IC. Pero en potencias por debajo de los 100 watts, se puede usar sin transistores