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ic voltage regulator is good for line or load regulation
it defines the voltage and current ratio.
IB=IE-IC =100uA
Ib =Ic /beta beta is the gain factor of the amp.
Ie=Ic+Ib
ic voltage regulator is good for line or load regulation
IC/IB where IC is Collector Current and IB is Base Current
Emitter current can be summed up by the formula: IE = IC+ IB Where IE = Emitter Current, IC = Collector Current, and IB = Base Current So simply take IE - IC and you'll get an IB of about 100uA. (5mA-4mA = .1mA or 100uA) Also, remember that IB controls IC and IE, not the other way around. You can also determine IB if Beta is known by the formula: IC = IB * Beta Which can be manipulated to equal IB = IC/Beta Hope this was helpful.
Driver IC is device which controls the flow of current through other circuit or other components.
alpha is the common base current gain = Ic/Ie.beta is the common emitter current gain = Ic/Ib.
Consider that current flow "enters" at the emitter and "exits" at the collector and base. Now, IE = IB + IC. Alternately, current "enters" at the collector and the base, and "exits" at the emitter. Now, IE = IB + IC
Because the operation of the transistor is determined by the current at the base. the principle equations of BJT operation are: Ic = h*Ib ,and Ie=Ib+Ic thus device operation is controlled by the input current.
it defines the voltage and current ratio.
IB=IE-IC =100uA
Ib =Ic /beta beta is the gain factor of the amp.
To check the IC by the multimeter, you have to make sure that the pointer points at the current. You can then connect the multimeter across the check the IC.
Ie=Ic+Ib