dc to cd power supply

[Dragonknell 10+ year member]

i was wondering if anyone had tried to run all of their computer components directly off some regulated dc supply from their car battery?

Also any different ways of powering computers other than inverrters ?

any and all replies'd be greatly appreciated //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif thanks

dc to ac to dc just seems so wasteful (around 20% power conversion lost..)

Click to read more...

 

[JimJ 5,000+ posts]

why not just build a regulator, and do a direct DC-DC conversion to bump up the voltage up to 17V or whatever the computer needs?

 

[Dragonknell 10+ year member]

well the computer componets need 12 volts but i didnt think you could just connect the power cable from your car battery to your hard drive, or cd drive 'such wouldnt that be bad ?

The power supply in a computer is a ac to dc inverter, so its a huge waste of power

 

[Dragonknell 10+ year member]

yeah i might have had jizzed a little bit when i saw this, and just thought i'd post it to close this thread, and for anyone else who might need it;

http://www.opussolutions.com/modules.php?name=News&file=article&sid=6

more than xactly what i was lookin for;

hope this helps others too

 

[avistar23 10+ year member]

Your going to need a whole cocktail of voltages, what youll need is a whole bunch of regulators and youll end up building some higher current linear supplies to, read the side of your power supply is has some of the voltages needed.

 

[Dragonknell 10+ year member]

didnt take my link did ya;

regulated dc to dc for 180$....

150W Power Supply

OPUS Solutions Smart DC-DC power supply (Patent Pending) is designed specifically for ATX, uATX, FlexATX, Mini ITX motherboards used in an automotive enviroment.

- 150 Watt output.

- Built in auto shutdown.

- Delayed shutdown timer up to 1 hour.

- Wide input voltage range.

- Ignition or on/off switch input.

- High Efficiency (extended battery life).

OPUS Solutions SFX DC-DC smart power supply, PATENT PENDING, is designed specifically for ATX motherboards to be used in an automotive environment. This product brings a new dimension to your PC’s mobility. Just get in your vehicle and start the engine; your PC is ready to go. When you switch off the ignition the PC can go into shut down, standby or hibernate modes automatically, no switch to

fiddle or fuss!

The SFX DC-DC Power supply has a micro-controller that controls and monitors various functions of the power supply operation. It monitors automobile battery voltage to protect against deep discharge. The ignition lead is monitored to start the PC when the ignition is turned on and to implement a safe shutdown procedure. It controls and monitors motherboard signals to provide smooth power-up and power down sequences. In addition, it also responds to shut down, stand-by and hibernate modes.

The power supply can be programmed to shut down the PC after a delay of up to one hour.

The power supply outputs are monitored to assure proper PC operation. A green LED indicator in the power supply continually indicates the power system status and health. It is also used for troubleshooting. There are features that are built-in for trouble-free and safe PC operation. The input power is protected against transients, load dumps and double battery during jumpstarts. The PC does not reboot during engine start or cranking. It also uses state-of-the-art technologies and the most advanced techniques to maximize efficiency, performance and reliability. Simply put, there is no other PC power supply like it.

Features

· 12V or 24V models

· Wide input voltage range

· Does not Re-boot PC during engine restart/cranking

· Load dump protected

· 100W or 150W models

· High efficiency (extended battery life)

· Ignition or on/off switch input

· Microprocessor controlled

· Built in diagnostics for troubleshooting.

· Automatic shutdown at low battery voltage to protect battery

· Extended operating temperature range

· SFX Power Supply form factor (most Micro ATX cases use this size power supply)

· ATX mother board compatible

· Simple to Install

· Flexible mounting scheme

Applications

· Full featured expandable mobile PC

· Law enforcement vehicle computers

· Mobile GPS & tracking systems

· Mobile MP3 and multimedia computers

· Computers in trucks, RVs, boats, aircrafts, etc.

· Computers in inventory carts, dispensing carts, etc.

Technical Specifications

Input: 12V 24V

Normal input voltage range: 7.5V to 18V DC 14V to 36V DC

Low battery shutdown voltage: 10V or 10.9V ± 0.25V 21.2V ± 0.5V

Low battery detection duration: 10 Sec. 10 Sec.

Output: 150W 150W

+3.3V

10A max, 14A peak 10A max, 14A peak

+5V

10A max, 14A peak 10A max, 14A peak

+12V

5 A max, 6.5 A peak 5 A max, 6.5 A peak

-12V

0.2 A max, .75 A peak 0.2 A max, .75 A peak

5V STDBY:

1 A max, 1.5 A peak 1 A max, 1.5 A peak

Power supply efficiency 90%

Operating Temperature Range -20°C to 65°C

Ignition/ Power switch current drain: 20 mA

Input Fuse: 15A ATO replaceable (Automotive blade fuse)

Input Power Mating connector: Plug: AMP P/N: 350766-1

Crimps: Amp P/N: 640310-3 and 350919-3

Output Power Connectors: 20 pin ATX Mother power connector, cable

length 240 mm long

8 pin Drive power connector to 3 HDD and

1 FDD power connectors

2 pin ATX power Switch connector, cable

length 420mm

External Dimensions: 100mm x 125mm x 63.5mm (H)

3.94" x 4.92" x 2.5" (H)