Mhz Posted January 2, 2005 Report Share Posted January 2, 2005 Hi, didn't know the best way to post my Subject without it being confusing, so this is what I'm attempting to do:I want to build a power supply that I can plug into a normal 120v AC wall outlet and supply the neccessary Voltage and Amperage to operate a standard 12v Automotive Fuel pump...I guess my biggest Challenge Is to first find out the average DC Amperage it takes to sufficiently run the Motor (Fuel Pump), and then have the proper Durable Tranformer etc.. to compensate for a standard Automotive Battery...Any help is Much Appreciated.. It's a little project I'm Attempting to build for testing Injectors... If I can Find the Average Operating DC Amperage for the Fuel Pump, That Will Be a Big Step...Thanks.. Quote Link to comment Share on other sites More sharing options...
MP Posted January 3, 2005 Report Share Posted January 3, 2005 You will need a very long extension cord to power the fuel pump while driving. ;D ;D(A little humor. Could not hold it back) ;DMP Quote Link to comment Share on other sites More sharing options...
ante Posted January 3, 2005 Report Share Posted January 3, 2005 Hi MHz,If you have a similar fuel pump in you vehicle it Quote Link to comment Share on other sites More sharing options...
Mhz Posted January 3, 2005 Author Report Share Posted January 3, 2005 Thanks Alot Ante, and yes, Funny Line MP :) .... Yeah Ante, That is a Great Problem Solver for the Amperage Rating You have Given...Now I wonder will there be a problem trying to obtain a Continuous 8 to 10 Amp DC Current at 12v Using a Standard Wall Transformer?I looked at the LM196/LM396 for Voltage Regulation, but not quite sure of the Primary Device To absorb The Current Load... Thanks For The Help Anyhow..Much Appreciated.. Quote Link to comment Share on other sites More sharing options...
ante Posted January 3, 2005 Report Share Posted January 3, 2005 Hi Mhz,A transformer rated 120 Quote Link to comment Share on other sites More sharing options...
Mhz Posted January 4, 2005 Author Report Share Posted January 4, 2005 :) :D Excellent Ante! .. I really Appreciate the Data... Don't want to sound like a super amature, but will I have to also look for a certain amperage on the Transformer's Output to achieve the 8 or more Amperage or just selecting the 120 - 150 Watt will be sufficient enough? Quote Link to comment Share on other sites More sharing options...
ante Posted January 4, 2005 Report Share Posted January 4, 2005 Hi Mhz,The amperage is calculated like this: P/U=I or if you like Watts/Voltage = Amps! In this case 120W / 12Volts = 10A. 8)Good Luck! Quote Link to comment Share on other sites More sharing options...
Mhz Posted January 4, 2005 Author Report Share Posted January 4, 2005 SUPER! :) YOU ARE VERY MUCH APPRECIATED SIR..THANKS ALOT! :D Quote Link to comment Share on other sites More sharing options...
ante Posted January 4, 2005 Report Share Posted January 4, 2005 Mhz,You are welcome, but please don Quote Link to comment Share on other sites More sharing options...
Dazza Posted January 5, 2005 Report Share Posted January 5, 2005 Hi,Why not just use a lead acid car battery, then when you are finished use a standard car battery charger to recharge it. If you already have a battery charger, it may prove to be a cheaper alternative. The only downside is how long the battery will last before needing to be recharged. This is the method that I have chosen, because I do not have to worry about Mains power/extension leads.I am curious on what you are trying to do.Are you wanting to clean your injectors.Or are you wanting to test them for physical wear.Hi ante,Don't feel old ante, you know, you're only as old as the woman you feel. ;D ;D ;D Quote Link to comment Share on other sites More sharing options...
Mhz Posted January 5, 2005 Author Report Share Posted January 5, 2005 Hi Dazza, and thanks for the Response... Yeah, I am creating a little Project where I can Test Injector Pressure for leaks and Possible Spray Patterns. I need to get my hands on a New Injector to see the actual Spray Pattern Under Various Pressures.I've Chosen Line Type Power Supply due to the fact That I Really didn't want the Clumsiness Of having to handle a Large Battery and the Worrisum Problem of Keeping It Charged. I feel It's Much Easier To Plug In The Power and Start the Testing...My Idea Is to have all the Equipment on a Portable Board, Another Reason I would Like To Be Without the Large Battery.Thanks For The Interests, and let me know if you have anymore Suggestions, They are Welcome... :)PS. Believe it or Not Ante, I really thought about the 'SIR' before using it... I keep telling myself to follow that first thought.. :), Your Response Is Noted, No More SIR For you Young Man.. ;) Quote Link to comment Share on other sites More sharing options...
Guest Yevgenip Posted January 5, 2005 Report Share Posted January 5, 2005 I remember someone in this forum calling me Sir, and I'm 14! ;D Made me feel honorable. Quote Link to comment Share on other sites More sharing options...
ante Posted January 5, 2005 Report Share Posted January 5, 2005 Hi Mhz,Oh, injector testing! I believed you where going to fill your car from your neighbours car during the night! ;D I have misjudged you completely! Ok that Quote Link to comment Share on other sites More sharing options...
login
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.