Menu
Forum
What's new
New posts
Live Activity
Search forums
Members
Registered members
Classifieds Member Feedback
Car Audio Discussion
General Car Audio
Car Audio Build Logs
Car Audio Equipment
Subwoofers
Speakers
Amplifiers
Head Units
Car Audio Help
Wiring, Electrical and Installation
Enclosure Design & Construction
Car Audio Classifieds
Car Audio Classifieds
Car Audio Wanted
Classifieds Member Feedback
Gallery
New media
New comments
Search media
SHOP
Shop Head Units
Shop Amplifiers
Shop Speakers
Shop Subwoofers
Shop eBay Car Audio
Test
Forum
Search
Search titles only
Search titles only
Log in / Join
Search
Search titles only
Search titles only
What's new
New posts
Live Activity
Search forums
Members
Registered members
Classifieds Member Feedback
Menu
Reply to thread
Forum
Car Audio Help
Wiring, Electrical & Installation
Lowering/Increasing voltage on the 12v rail
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Message
<blockquote data-quote="MikePresJr" data-source="post: 7626146" data-attributes="member: 639269"><p>Hello, I am currently using 2 PSU's to run an amplifier for a subwoofer that I will be purchasing soon. This is more of an experiment than anything. Now, here is the dilemma I'm having:</p><p></p><p>I have 2 PSU's wired in parallel, as to combine the amperage of their respective 12v rails. One is 17, the other is 19, so effectively, I want to pull at least 30 amps out of these bad boys. Now, I've run across a problem; due to the PSU's internal voltage detector, the 19A one is always doing the work, as they are both the same voltage, so the weaker one is 'cancelled' out, per say. What I want to do, is increase the voltage, or lower it, by a little bit, so that the voltage won't cause this problem and I can harness all the amps I need. Now, where would I put a diode or resistor to do this? Would I only do it to 1 of the PSU's, or would I have to solder the diodes/resistors onto both of them? Any other input is appreciated.</p><p></p><p>Note: I'm well aware that using a regulated AC to DC power supply is alot safer and worth it in the long run. I have one of these, this is just an experiment, as stated.</p><p></p><p>Thank you!</p><p></p><p>Here is a little diagram I made in paint to show you how I have it wired currently:</p><p></p><p>edit: I suppose I can't post pictures whilst being a new user. Remove the spaces and go here to view picture. h t t p : / / i41.tinypic.com/2jds2e1.jpg</p></blockquote><p></p>
[QUOTE="MikePresJr, post: 7626146, member: 639269"] Hello, I am currently using 2 PSU's to run an amplifier for a subwoofer that I will be purchasing soon. This is more of an experiment than anything. Now, here is the dilemma I'm having: I have 2 PSU's wired in parallel, as to combine the amperage of their respective 12v rails. One is 17, the other is 19, so effectively, I want to pull at least 30 amps out of these bad boys. Now, I've run across a problem; due to the PSU's internal voltage detector, the 19A one is always doing the work, as they are both the same voltage, so the weaker one is 'cancelled' out, per say. What I want to do, is increase the voltage, or lower it, by a little bit, so that the voltage won't cause this problem and I can harness all the amps I need. Now, where would I put a diode or resistor to do this? Would I only do it to 1 of the PSU's, or would I have to solder the diodes/resistors onto both of them? Any other input is appreciated. Note: I'm well aware that using a regulated AC to DC power supply is alot safer and worth it in the long run. I have one of these, this is just an experiment, as stated. Thank you! Here is a little diagram I made in paint to show you how I have it wired currently: edit: I suppose I can't post pictures whilst being a new user. Remove the spaces and go here to view picture. h t t p : / / i41.tinypic.com/2jds2e1.jpg [/QUOTE]
Insert quotes…
Verification
Post reply
Forum
Car Audio Help
Wiring, Electrical & Installation
Lowering/Increasing voltage on the 12v rail
Top
Menu
Home
Refresh