Can I get +5/-5vdc from 9v battery

  • Thread starter epcole
  • Start date
  • #1
5
0
Using TL084 and want to supply +/-5v for power. I heard there is a way to do it with 9v battery but I cant find any info. anybody have an idea on how its done?
thanks
 

Answers and Replies

  • #2
berkeman
Mentor
58,811
8,936
Using TL084 and want to supply +/-5v for power. I heard there is a way to do it with 9v battery but I cant find any info. anybody have an idea on how its done?
thanks
Can you just use two 9V batteries?

If not, use an inverting DC-DC converter to give you the negative rail.
 
  • #3
sophiecentaur
Science Advisor
Gold Member
2020 Award
25,386
4,959
You can easily get +4.5 V and -4.5V. Is that good enough?
 
  • #4
1,762
59
One method would be to use the TL084 to make a square wave oscillator. Then at the output use a high pass RC network to feed both a positive and a negative rectifier. You may need to regulate the voltage to +5 V and -5 V. Your current capability will be very limited.
 

Related Threads on Can I get +5/-5vdc from 9v battery

  • Last Post
Replies
1
Views
3K
  • Last Post
Replies
7
Views
3K
Replies
9
Views
6K
  • Last Post
Replies
4
Views
1K
  • Last Post
Replies
3
Views
3K
  • Last Post
4
Replies
79
Views
3K
  • Last Post
3
Replies
61
Views
9K
Replies
8
Views
4K
  • Last Post
Replies
1
Views
13K
  • Last Post
Replies
9
Views
5K
Top