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Author Topic: Charge Pump Output Check/Verify ?  (Read 6739 times)

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Offline Overloaded

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Charge Pump Output Check/Verify ?
« on: July 15, 2008, 10:23:38 AM »
Hey Folks,
Using a DMM, can the Mach Charge Pump freq. be checked... or just verified on its assigned port/output pin ?
Not the actual pulse count, just positive evidence of its presence.
Thanks,
RC
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Offline Hood

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Re: Charge Pump Output Check/Verify ?
« Reply #1 on: July 15, 2008, 10:49:17 AM »
I would imagine if you put the DMM on mv range you should see something, cant test as a boats skipper just borrowed the DDM but when he brings it back I will test it if you havent had an answer from any one else.

Hood
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Offline Hood

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Re: Charge Pump Output Check/Verify ?
« Reply #2 on: July 15, 2008, 11:03:44 AM »
OK just got the meter back, getting 2+ volts at the chargepump, thought it would be less but forgot its not a high frequency . So yes you should get a voltage of around 2 or 3 volts.
Hood
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Offline Overloaded

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Re: Charge Pump Output Check/Verify ?
« Reply #3 on: July 15, 2008, 11:39:49 AM »
I checked as well....1.97v
Thanks Hood,
RC
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