PWM - potencia 12V 30A multivibrador astable

276

06:00:55

Potenciómetro a 1% y spst abierto por defecto

*Variar potenciómetro o el capacitor de 100uF

La corriente y voltaje que puede soportar el circuito depende de los valores del MOSFET

El primer spst simula un fusible que debe ser alrededor de 20A (según corriente nominal).

El diodo protector en paralelo con el motor es de potencia, minimo 10A.

Calcular valores de componentes:
Ta= ln(2)(R1+R2)C
Tb= ln(2)R2(C)
f=1/ln(2)C(R1+2R2)

T=1/f

D=Ta/T
//////////////////////////////////////////////////////////
D=ciclo de trabajo(duty cycle)
Ta=tiempo en alto(high time)
Tb=tiempo en bajo (low time)
f=frecuencia
ln=logaritmo neperiano

published 7 years ago

LeButch

7 years ago

A frequency of 500mHz would mean it turns on and off once every 2 seconds. Thats muuuuuuuch too low for a PWM motor controller. A frequency of 500kHz would be better.

carlos2201

7 years ago

No sirve pa un carajo llave!

marck161

7 years ago

Well, I designed it to this frequency, duty cycle, etc. You can design it for your appropriate values. I added the formulas to calculate it on description

josue13

7 years ago

Huawei

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