Hi, I have asked many question about MOSFET but I haven't got the right answer. At first I want to ask my knowledge about BJT. In BJT, we have to use correct resistor value to connect base of transistor for getting desire collector current.
Example - Required Load Current - 1A
- Transistor's gain 100
- Voltage that are going to supply in to the base of transistor is (5V)
- Supply current to load is 12 V
- For getting base current - V = IR
5-0.7 = 0.010 R
R = 430 ohm
- According to above calculation, I have to use 430 ohm resistor to connect in series with base of transistor for getting 1A collector current.
As for MOSFET, how do I control the transistor for getting correct (desired) current to drive the load?
Thanks.
Example - Required Load Current - 1A
- Transistor's gain 100
- Voltage that are going to supply in to the base of transistor is (5V)
- Supply current to load is 12 V
- For getting base current - V = IR
5-0.7 = 0.010 R
R = 430 ohm
- According to above calculation, I have to use 430 ohm resistor to connect in series with base of transistor for getting 1A collector current.
As for MOSFET, how do I control the transistor for getting correct (desired) current to drive the load?
Thanks.