[ E-Forum Home | Contents | Search | Post | Reply | Next | Previous | Up ]
From: Bill Kimbrough wakrocket@aol.com
Date: 08 Sep 2002
Time: 16:00:31
Can anyone help me with a simple circuit to reverse the polarity of two wires to a dc motor to allow reverse rotation. I need run a sccrew with a dc motor one direction till the end, and then reverse polarity, and rotation till the other end etc. etc. Thanks Bill Kimbrough
From: tapio.hirvela@stresstech.fi
Date: 21 Dec 2001
Time: 05:41:24
I need low dropout amplifier for my battery +-12 V system. Load will be 1 A. I would like to have 20 Vpp sine signal out when battery voltage drop out to 10.5 V. Bandwith is 0 - 1 kHz. Anybody knot good fet circuit or other way to do it? Thanks for advange. BR., Tapio Hirvelä