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β22 quiescent current

beta22

β22 quiescent current

Postby first » April 24th, 2019, 11:17 am

Hi:

B22 recommended quiescent current is between 120mA-160mA. I have read site information how to calculation , I still do not understand

please tell me direct

aiming for 120mA quiescent current, I using R34 is 1 Ω, voltage across the R34 resistor how many mv is correct.

Thanks
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Re: β22 quiescent current

Postby amb » April 24th, 2019, 4:11 pm

The formula is simple Ohm’s Law:

V = I * R

Where V is the voltage drop across the resistor, I is the current in Amperes, and R is the resistance in Ohms.

Thus, V = 0.12A * 1Ω = 0.12V = 120mV
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Re: β22 quiescent current

Postby first » April 24th, 2019, 11:49 pm

thanks a lot
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