HellasTechn
- Apr 14, 2013
- 1,579
- Joined
- Apr 14, 2013
- Messages
- 1,579
Hello friends.
A friend of mine has this homework and needs help but have no internet acces so i post it on his behalf.
This circuit with the lm318N must trigger the buzzer when input voltage reaches 13 Volt.
Here is the circuit.
The transistor is a BD 649.
He used a variable DC supply and the buzzer keeps beeping and the lm318 heats up. also r1 and r2 get hot.
He probably burned the lm318 while testing the circuit but besides that do you think that this circuit can work ?
First i think that the BD649 is not a good choice.
I have almost no knowledge about theese circuits so... Any help welcomed.
A friend of mine has this homework and needs help but have no internet acces so i post it on his behalf.
This circuit with the lm318N must trigger the buzzer when input voltage reaches 13 Volt.
Here is the circuit.
The transistor is a BD 649.
He used a variable DC supply and the buzzer keeps beeping and the lm318 heats up. also r1 and r2 get hot.
He probably burned the lm318 while testing the circuit but besides that do you think that this circuit can work ?
First i think that the BD649 is not a good choice.
I have almost no knowledge about theese circuits so... Any help welcomed.