Hi all
I have fixed up the circuit as shown in my attached picture and i measure the amplified current (that i wanted) between the LED and the Collector using an ammeter.
I used a power supply set to 120mA and when i input 5V, i measured 0.433mA as the base current and got 8.199mA as the collector current which gives me a current amplification of aboput 19times. Is this the correct way to measure the amplified current?
However this is only for testing. If my actual input is about 40mA @5V and i want to achieve 100mA @ 5V what should i modify my circuit to?
Cheers
I have fixed up the circuit as shown in my attached picture and i measure the amplified current (that i wanted) between the LED and the Collector using an ammeter.
I used a power supply set to 120mA and when i input 5V, i measured 0.433mA as the base current and got 8.199mA as the collector current which gives me a current amplification of aboput 19times. Is this the correct way to measure the amplified current?
However this is only for testing. If my actual input is about 40mA @5V and i want to achieve 100mA @ 5V what should i modify my circuit to?
Cheers