Search found 4 matches
Search found 4 matches • Page 1 of 1
- Thu Jan 08, 2004 4:28 pm
- Forum: General Discussion
- Topic: Switching Power Supply?
- Replies: 2
- Views: 591
Hi Group,<p>I need a 12v regulated power supply at 1 or 2 amp min capicity in a audio circuit. I found a 12v 1.66A regulated (switching) power suppy at All Electronics for $8.50. This is cheaper than buying parts to build with cost of transformer.<p>Will a switching power supply add extra noise in c...
The lightning circuit has pos & neg power supply leading to the output.I am wondering if the zero center 20 seg. leds off of the LM3914 will substitute for the pos-neg uf meter in original circuit?In other words will it show pos-neg responses as would the zero center meter?
Hello,<p>I want to use on page(9): http://hallbeng.jlab.org/datasheets/LM3914.pdf (Zero-Center Meter 20 segment)<p>I want this to show output, instead of 250-0-250uf meter used in a lightning project for pos.-neg. responses.<p>Will this zero center meter work or is only for positive voltages?? Thanks.