Which is the best way to drive a mosfet

[rajudp]

best way to drive a mosfet

From this which is the best way to drive a mosfet.



actually it is for a pushpull inverter and i am only showing the driver part.

i found the picture of the board but dont have the circuit. by looking the pict there is no device for driving the mosfet.
i am attaching the pict here

Added after 3 minutes:

 

[jabi]

hi

it is very easy to find!

u can search in Google , if don't know any site , u can search in Google by Image searcher.


I find this page in first search page of Google.

https://www.tubecad.com/2007/06/blog0111.htm

good luck.

 

[rajudp]

thanks for the reply


if we drive the mosfet directly then vgs will be below 5v i am interested because only one ic (mostly pic16f676) is used so low cost . i found it from

**broken link removed**

if anybody having schematics please share it.

 

[nandhu015]

Hai

Pull it down to ground not to +

At reset of micro the output will be tristated. The mosfet will be on unless to change the trisated to output and logic level to 0

Regards
Nandhu

 

[FvM]

The single-chip inverter is supposed to use a PWM control IC with sufficient gate drive capability rather than a uP. If you imagine higher output power than a few ten watts, there's no way to drive the power stage from a PIC or any other uP directly.

As you mentioned low cost, you're probably planing to use cheap standard MOSFETs, that require sufficient (e.g. 8-12 V) gate drive voltage for acceptable performance. This can't work without a level translating gate driver.

 

[rajudp]

thanks

but i am asking for the driving volt 5v or 12v to the gate of mosfet