So, I have a 3.7V lithium ion battery and two of the following vibration motors:
http://www.vibration-motor.com/prod...capsulated-water-resistant-Z7AL2B1692082.html
They are rated for a max of 3.6V, so I can't just run them straight from the battery. I am trying to make a haptic feedback device, and I want a strong yet constant vibration, so I'm wanting to supply 3.0-3.3V (a 3.3V circuit may be easier to find since it's more common). I've looked at linear, switching, and buck/boost regulators, but I'm not too clear what would work best for this scenario. Linear regulators would probably drop out once the battery's voltage gets too low. Then, there's the issue of efficiency of the circuit based on the battery's voltage. What type of regulator would be appropriate? Any suggestions for a particular model?
(I'm sure that someone will suggest a LiFePo4 cell, but I'm trying to keep things inexpensive and small since I'm wanting this to be a wearable. I'm using some prismatic lithium ion cells because they are compact and thin).
http://www.vibration-motor.com/prod...capsulated-water-resistant-Z7AL2B1692082.html
They are rated for a max of 3.6V, so I can't just run them straight from the battery. I am trying to make a haptic feedback device, and I want a strong yet constant vibration, so I'm wanting to supply 3.0-3.3V (a 3.3V circuit may be easier to find since it's more common). I've looked at linear, switching, and buck/boost regulators, but I'm not too clear what would work best for this scenario. Linear regulators would probably drop out once the battery's voltage gets too low. Then, there's the issue of efficiency of the circuit based on the battery's voltage. What type of regulator would be appropriate? Any suggestions for a particular model?
(I'm sure that someone will suggest a LiFePo4 cell, but I'm trying to keep things inexpensive and small since I'm wanting this to be a wearable. I'm using some prismatic lithium ion cells because they are compact and thin).