This circuit current limiting effect.
When current flows through the Q5B R33, when the voltage across R3 is greater than 0.7V, Q5A starts conducting, so that the base voltage is increased Q5B prevent Q5B current increases.
When current flows through the Q5B R33, when the voltage across R3 is greater than 0.7V, Q5A starts conducting, so that the base voltage is increased Q5B prevent Q5B current increases.
Because it is immediate negative feedback circuit, does not produce shocks.
No comments:
Post a Comment
Please comment