Hello,
I'm trying to use a 9v battery to power a hard drive disc motor with DRV11873 plus a 555 timer and LM391 rectifier.
-I'm finding more reliable startup with a 5400mwh rechargeable 9v battery than a non-rechargeable one.
-A regular 9v battery will usually make the motor make stuttering sounds upon startup.
-I've tried many different resistors for CS and the three COM resistors. I think I landed at 3.3k for CS and 2.2k for the three COM resistors to give better startup results.
-I have FS going to 5v via a 10k resistor.
-100k going to FG and 100k going to RD.
Are there any recommendations to get better behavior from a regular 9v battery?
Thank you!
