I need some assistance with a voltage question I have.
I have built a circuit that uses a 555 and a 4017 to flash sets of LED's, and it's working perfectly (thanks to previous assistance), powered by a mini battery (MN21 for 12v or 28L for 6v), which I'm using becuase:
- The 555 needs at least 5 volts
- The model I'm using it in is too small to accomodate anything bigger, so a 9v PP3 is too big.
I now want to add another circuit to my model that uses a UM3561 chip to create a siren effect, but the technical spec states that it's maximum voltage is 3.6v, so I'm assuming that I wont be able to run it with my 6v or 12v mini battery.
However due to the lack of space I need to be able to run both circuits off the same tiny battery. Is there a way that I can do this easily and cheaply? Hopefully by adding just a small number of components for example?
The schematic of mt UM3561 circuit is attached for clarity.
Thanks in advance
I have built a circuit that uses a 555 and a 4017 to flash sets of LED's, and it's working perfectly (thanks to previous assistance), powered by a mini battery (MN21 for 12v or 28L for 6v), which I'm using becuase:
- The 555 needs at least 5 volts
- The model I'm using it in is too small to accomodate anything bigger, so a 9v PP3 is too big.
I now want to add another circuit to my model that uses a UM3561 chip to create a siren effect, but the technical spec states that it's maximum voltage is 3.6v, so I'm assuming that I wont be able to run it with my 6v or 12v mini battery.
However due to the lack of space I need to be able to run both circuits off the same tiny battery. Is there a way that I can do this easily and cheaply? Hopefully by adding just a small number of components for example?
The schematic of mt UM3561 circuit is attached for clarity.
Thanks in advance
Attachments
-
7 KB Views: 37