What controls the amps through the mosfet???

[JAMAL JIMI]

Is it the amplitude of gate voltage which controls the current passing through the MOSFET?

And is it the duty cycle of gate input voltage which controls the output voltage by the MOSFET??

Is it so?...Please tell me am I right???

 

[goldsmith]

Is it the amplitude of gate voltage which controls the current passing through the MOSFET?

Hi JAMAL JIMI
Yes !

And is it the duty cycle of gate input voltage which controls the output voltage by the MOSFET??

Is it so?...Please tell me am I right???

I afraid ! no you're not right .
What you mean by out put of a mosfet ? mosfet can be used in plenty of different modes . in which mode ? i suspect that you're referring to the SMPS application ?
Duty cycle only can change average of your signal ! and nothing else !

Best Wishes
Goldsmith

 

[JAMAL JIMI]

yes i want to use the MOSFET in smps mode to control voltage.......can i control the voltage by pwm signal by varying the duty cycle???

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yes i want to use the MOSFET in smps mode to control voltage.......can i control the voltage by pwm signal by varying the duty cycle???

 

[goldsmith]

yes i want to use the MOSFET in smps mode to control voltage.......can i control the voltage by pwm signal by varying the duty cycle???

Yes but a filter is required to take integral ( average ) from that .

 

[JAMAL JIMI]

What type of filter is required?

 

[goldsmith]

What type of filter is required?

Hi JAMAL
Usually LC filters ( LPF ) which are able to act as an integrator .

Best Wishes
Goldsmith