Hi All,
I am trying to design a transistor relay driver circuit.My driver output requirement is 10mA. Here my power supply is a variable kind and it can be varied from 5V to 15V. I have to ensure that my relay driver is working in whole range of supply voltage, ie. from 5V to 15V. so I designed my driver ciruit to work even at minimum supply voltage of 5V. Now my question is what will happen if supply voltage changes from 5V to 15V?
As per my understanding when supply volatge changes Ic will also change; subsequntly beta too. Will these changes affect Ib?
In case if my base driving source is giving the maximum current even at 10V; what will happen to output current at 15V. Will my driver work properly at 15V supply?
Thanking you in advance.......
Sibi Thomas
I am trying to design a transistor relay driver circuit.My driver output requirement is 10mA. Here my power supply is a variable kind and it can be varied from 5V to 15V. I have to ensure that my relay driver is working in whole range of supply voltage, ie. from 5V to 15V. so I designed my driver ciruit to work even at minimum supply voltage of 5V. Now my question is what will happen if supply voltage changes from 5V to 15V?
As per my understanding when supply volatge changes Ic will also change; subsequntly beta too. Will these changes affect Ib?
In case if my base driving source is giving the maximum current even at 10V; what will happen to output current at 15V. Will my driver work properly at 15V supply?
Thanking you in advance.......
Sibi Thomas