Don't think so. R4 limits the Q1 base current to a safe value., although I think 10K is too large and could prevent Q1 saturation. 2.2K probably is a better value for that.The resistors R4 and R5 at the output of the opamp with the capacitor C1 will delay the light transients at the input of the light sensor.
This delay will reduce the shatter of the relays.
|Thread starter||Similar threads||Forum||Replies||Date|
|E||What is purpose of this resistor||General Electronics Chat||7|
|F||What is the purpose of a 1 ohm resistor in this circuit?||Analog & Mixed-Signal Design||17|
|Purpose of resistor||Analog & Mixed-Signal Design||32|
|Purpose of a Terminating Resistor?||Analog & Mixed-Signal Design||10|
|What is the purpose of resistor Ra in this simple vaccum tube voltage amplifier circuit?||Analog & Mixed-Signal Design||9|
by Lianne Frith
by Jake Hertz