Pheetuz
Full Member level 3
Hi folks, new to this forum so dont know if i am posting this in the right place.
Am currently doing a project at uni where i am building a fighting robot, all was going fairly well and i had my control circuit all drawn out untill a student in the year above me told me that when he had built a similar circuit last year he couldnt drive his MOSFET from the PIC that he was using.
Basically i am implementing a H-Bridge circuit using DPDT relays with the negative line from the relays going through the high powered MOSFET and down to ground.
My intention was then to use pulse width modulation to turn the MOSFET on and off to control the amount of power being delievered to the motor and thus its speed.
As i said the concern that i have is that the output of the PIC wont be powerful enough to drive the gate of the MOSFET and was wondering if anyone had any suggestions as to some circuitry to use ???
The MOSFET i am using is 75nf75 MOSFET and am using a 12V drill battery as a power supply.
Many thanks.
Am currently doing a project at uni where i am building a fighting robot, all was going fairly well and i had my control circuit all drawn out untill a student in the year above me told me that when he had built a similar circuit last year he couldnt drive his MOSFET from the PIC that he was using.
Basically i am implementing a H-Bridge circuit using DPDT relays with the negative line from the relays going through the high powered MOSFET and down to ground.
My intention was then to use pulse width modulation to turn the MOSFET on and off to control the amount of power being delievered to the motor and thus its speed.
As i said the concern that i have is that the output of the PIC wont be powerful enough to drive the gate of the MOSFET and was wondering if anyone had any suggestions as to some circuitry to use ???
The MOSFET i am using is 75nf75 MOSFET and am using a 12V drill battery as a power supply.
Many thanks.