HI All,
I have been attempting to make a temperature based controller of current flow. ie something starts getting hot we reduce current. I include a schematic below.
**broken link removed**
V1 is a variable voltage representing the output of the centigrade temperature sensor LM35DZ in which each degC is 10mV. Here at 750mV ( 75degC) the current is higher.
Below you can see the effect of reducing the voltage at V1
**broken link removed**
The problem is... I actually want the effect reversed.. I want a way to INCREASE the current as the voltage at V1 is decreased.. What sort of transistor/semiconductor will allow me to do that?
Thanks
Peter
I have been attempting to make a temperature based controller of current flow. ie something starts getting hot we reduce current. I include a schematic below.
**broken link removed**
V1 is a variable voltage representing the output of the centigrade temperature sensor LM35DZ in which each degC is 10mV. Here at 750mV ( 75degC) the current is higher.
Below you can see the effect of reducing the voltage at V1
**broken link removed**
The problem is... I actually want the effect reversed.. I want a way to INCREASE the current as the voltage at V1 is decreased.. What sort of transistor/semiconductor will allow me to do that?
Thanks
Peter