L
[email protected]
- Jan 1, 1970
- 0
I am using a battery charger for a power supply for a circuit i am
building to control the speed of a DC motor. here is my circuit (view
in notepad)
|
| +5 V
| |
| .-.
| 470 | |
| 1/2 W | |
| '-'
| |
| o---------> to MOSFET
| | Gate
|PRN ___ |/
| o-|___|-o-|2N3904
| 2.2K | |>
| .-. |
| 10K| | |
| | | ===
| '-' GND
| |
| ===
| GND
|
V+ from battery charger
(18.8 V, 10A)
|----.
| |
.-. |
Motor ( X ) -
'-' ^
| |
o----'
| D1
|
||-+
||<- PM
from 2N3904 -->-----||-+
|
|
|
Ground
Power MOSFET IRF510
Anyway, there are serious problems with this circuit. It keeps blowing
up, haha. Especially the 2N3904 transistor. Any ideas? Is a battery
charger suitable for a power supply? Are there modifications i need to
make? Any help would be great. Thanks, Lucas
building to control the speed of a DC motor. here is my circuit (view
in notepad)
|
| +5 V
| |
| .-.
| 470 | |
| 1/2 W | |
| '-'
| |
| o---------> to MOSFET
| | Gate
|PRN ___ |/
| o-|___|-o-|2N3904
| 2.2K | |>
| .-. |
| 10K| | |
| | | ===
| '-' GND
| |
| ===
| GND
|
V+ from battery charger
(18.8 V, 10A)
|----.
| |
.-. |
Motor ( X ) -
'-' ^
| |
o----'
| D1
|
||-+
||<- PM
from 2N3904 -->-----||-+
|
|
|
Ground
Power MOSFET IRF510
Anyway, there are serious problems with this circuit. It keeps blowing
up, haha. Especially the 2N3904 transistor. Any ideas? Is a battery
charger suitable for a power supply? Are there modifications i need to
make? Any help would be great. Thanks, Lucas