D
[email protected]
- Jan 1, 1970
- 0
I would like to know why my output voltage drops from 4.5V to 1.3V when
I connect a reed relay (N/O type) from this voltage to ground.
Further, I also need to know how to overcome this drop. I have a power
supply of 9V in the system.
9 Volts Vcc
|
|
0 or 5volts -----|------------------|
0 or 5volts -----| MULTIPLEXER | Output goes from 4.5V down
0 or 5volts -----| 4:16 | to 1.3 volts when relay is
0 or 5volts -----|------------------| connected.
||||||||||||||||
| ----------------- N/O
| |
--->|------------------|
| REED RELAY | Need relay to make
--->|------------------| these line common
| | with each other.
| ----------------- 3Volts
__|__
/////
I have a 5 volt reed relay from radio shack. And, I have also ordered
a 3 volt reed relay from digikey. Perhaps, there is a better way to do
this though. All I need to do is make the Nomally open contact common
with the 3 Volt contact as shown above. However, I need to use the
output from the multiplexer to do this. Later, this will be controlled
with a PIC chip (5 volts). But, for now, I just need these two lines
to become common when a particular pin from the multiplexer is high.
Thanks for any help you give,
David
I connect a reed relay (N/O type) from this voltage to ground.
Further, I also need to know how to overcome this drop. I have a power
supply of 9V in the system.
9 Volts Vcc
|
|
0 or 5volts -----|------------------|
0 or 5volts -----| MULTIPLEXER | Output goes from 4.5V down
0 or 5volts -----| 4:16 | to 1.3 volts when relay is
0 or 5volts -----|------------------| connected.
||||||||||||||||
| ----------------- N/O
| |
--->|------------------|
| REED RELAY | Need relay to make
--->|------------------| these line common
| | with each other.
| ----------------- 3Volts
__|__
/////
I have a 5 volt reed relay from radio shack. And, I have also ordered
a 3 volt reed relay from digikey. Perhaps, there is a better way to do
this though. All I need to do is make the Nomally open contact common
with the 3 Volt contact as shown above. However, I need to use the
output from the multiplexer to do this. Later, this will be controlled
with a PIC chip (5 volts). But, for now, I just need these two lines
to become common when a particular pin from the multiplexer is high.
Thanks for any help you give,
David