J
Jan Wagner
- Jan 1, 1970
- 0
Hi,
I'm really stumped on this one...
Can solenoids that are used to open door locks (house..) be wired in
parallel, when multiple doors should be opened simultaneously?
The relevant part of the circuit is
http://users.tkk.fi/~jwagner/electr/tmp/solenoid-ctrl.gif
where the solenoid(s) are connected to JP1.
For now, we have two doors to open simultaneously. The solenoid of the
first has 200kOhm(!) DC resistance, the other 100ohm.
The solenoids work fine when individually connected to the above
circuit's output header, but when both are connected to the header at
the same time then only the 100ohm one latches. Which not only me thinks
is quite odd... The +24V rail stays quite solid even when the 100ohm
solenoid is engaged, and the mosfet's Vds then is just around 0.1V.
So, with my ignorance of the internals of solenoid door locks in
general, is there perhaps some property there that makes wiring these
things in parallel not possible?
thanks,
- Jan
I'm really stumped on this one...
Can solenoids that are used to open door locks (house..) be wired in
parallel, when multiple doors should be opened simultaneously?
The relevant part of the circuit is
http://users.tkk.fi/~jwagner/electr/tmp/solenoid-ctrl.gif
where the solenoid(s) are connected to JP1.
For now, we have two doors to open simultaneously. The solenoid of the
first has 200kOhm(!) DC resistance, the other 100ohm.
The solenoids work fine when individually connected to the above
circuit's output header, but when both are connected to the header at
the same time then only the 100ohm one latches. Which not only me thinks
is quite odd... The +24V rail stays quite solid even when the 100ohm
solenoid is engaged, and the mosfet's Vds then is just around 0.1V.
So, with my ignorance of the internals of solenoid door locks in
general, is there perhaps some property there that makes wiring these
things in parallel not possible?
thanks,
- Jan