Help with electronics.

[m wisdom]

I'm building a "device" and need some help with part of the electronics. I got most off it working but I only have some basic knowledge about electronics and I have run into a problem I don't know how to solve.

What I have is a 9V power supply, a 3V vibrator and a control circuit that gives me a 0-8V signal.
I can't figure out a good way to get the vibrator to be controlled by the signal from my circuit.
The problem is twofold, i need to boost the current because the control circuit don't have enough power to run the vibrator and I need to get that 0-8V signal down to 0-3V.

The main problem I have is that I don't know how to boost the current without losing any voltage

Any help would be appreciated.

 

[Mr. Mann]

I'm building a "device" and need some help with part of the electronics. I got most off it working but I only have some basic knowledge about electronics and I have run into a problem I don't know how to solve.

What I have is a 9V power supply, a 3V vibrator and a control circuit that gives me a 0-8V signal.
I can't figure out a good way to get the vibrator to be controlled by the signal from my circuit.
The problem is twofold, i need to boost the current because the control circuit don't have enough power to run the vibrator and I need to get that 0-8V signal down to 0-3V.

The main problem I have is that I don't know how to boost the current without losing any voltage

Any help would be appreciated.

uhh... where to start...

Amps? Volts? Potentiometer or rheostat? Transformer or battery/cell?

Hmmmm....

Try a 3V power supply. You can use wire two 1.5V AA or AAA cells in series to increase V to 3V and thus not send too much V to your vibe.

 

[m wisdom]

uhh... where to start...

Amps? Volts? Potentiometer or rheostat? Transformer or battery/cell?

Hmmmm....

Try a 3V power supply. You can use wire two 1.5V AA or AAA cells in series to increase V to 3V and thus not send too much V to your vibe.

No potentiometer or rheostat, it's a circuit that takes some "interesting input" (can't say more in the forum) and delivers 0-8V based on that.

It's all battery operated, just in case there would be a short circuit

I want to avoid a separate battery pack for the vibe. I want to use the 9V battery pack I already have.

 

[Mr. Mann]

No potentiometer or rheostat, it's a circuit that takes some "interesting input" (can't say more in the forum) and delivers 0-8V based on that.

It's all battery operated, just in case there would be a short circuit

I want to avoid a separate battery pack for the vibe. I want to use the 9V battery pack I already have.

Uhhhh...

okay...

Never mind, then.